1
                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 25049

                                  SCHEDULE 13D

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934
                               (AMENDMENT NO. 3)*

                       ALEXANDER & ALEXANDER SERVICES INC.
                                (Name of Issuer)

                     Common Stock, par value $1.00 per share
                         (Title of Class of Securities)

                                    014476105
                                 (CUSIP Number)

                               Florence A. Davis -
                       Vice President and General Counsel
                       American International Group, Inc.
                                 70 Pine Street
                            New York, New York 10270
                                 (212) 770-5457
           (Name, Address and Telephone Number of Person Authorized to
                       Receive Notices and Communications)

                                December 11, 1996
             (Date of Event which Requires Filing of this Statement)


If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-l(b)(3) or (4), check the following box. [ ]

NOTE: Six copies of this statement, including all exhibits, should be filed with
the Commission. See Rule 13d-l(a) for other parties to whom copies are to be
sent.

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).



   2



                                  SCHEDULE 13D


CUSIP NO. 014476105                                           PAGE 2 OF 44 PAGES

1.    NAME OF REPORTING PERSON
      S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

            American International Group, Inc.
            IRS No. 13-2592361

2.    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*           (a) [ ]
                                                                  (b) [ ]

3.    SEC USE ONLY

4.    SOURCE OF FUNDS*

            WC

5.    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
      IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)                      [ ]

6.    CITIZENSHIP OR PLACE OF ORGANIZATION

            Incorporated in the State of Delaware

7.    SOLE VOTING POWER

            None

8.    SHARED VOTING POWER

            4,960,719

9.    SOLE DISPOSITIVE POWER

            None

10.   SHARED DISPOSITIVE POWER

            4,960,719

11.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

            4,960,719

12.   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)
      EXCLUDES CERTAIN SHARES*                                        [ ]

13.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) (represents 9.9% of the
      outstanding voting stock of Alexander & Alexander Services Inc.)

            10.34%

14.   TYPE OF REPORTING PERSON*

            HC, CO

            *SEE INSTRUCTIONS BEFORE FILLING OUT!
INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION



   3
                                  SCHEDULE 13D


CUSIP NO. 014476105                                           PAGE 3 OF 44 PAGES


1.    NAME OF REPORTING PERSON
      S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

            American Home Assurance Company
            IRS No. 13-5124990

2.    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*           (a) [ ]
                                                                  (b) [ ]

3.    SEC USE ONLY

4.    SOURCE OF FUNDS*

            WC

5.    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
      IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)                      [ ]

6.    CITIZENSHIP OR PLACE OF ORGANIZATION

            Incorporated in the State of New York

7.    SOLE VOTING POWER



8.    SHARED VOTING POWER

            3,472,503

9.    SOLE DISPOSITIVE POWER



10.   SHARED DISPOSITIVE POWER

            3,472,503

11.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

            3,472,503

12.   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)
      EXCLUDES CERTAIN SHARES*                                         [ ]

13.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

            7.24%

14.   TYPE OF REPORTING PERSON*

            IC, CO

            * SEE INSTRUCTIONS BEFORE FILLING OUT!
  INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
  (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION


   4
                                  SCHEDULE 13D


CUSIP NO. 014476105                                           PAGE 4 OF 44 PAGES


1.    NAME OF REPORTING PERSON
      S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

            Commerce & Industry Insurance Company
            IRS No. 31-1938623

2.    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*           (a) [ ]
                                                                  (b) [ ]

3.    SEC USE ONLY

4.    SOURCE OF FUNDS*

            WC

5.    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
      IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)                      [ ]

6.    CITIZENSHIP OR PLACE OF ORGANIZATION

            Incorporated in the State of New York

7.    SOLE VOTING POWER


8.    SHARED VOTING POWER

            744,107

9.    SOLE DISPOSITIVE POWER



10.   SHARED DISPOSITIVE POWER

            744,107

11.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     [ ]

            744,107

12.   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)
      EXCLUDES CERTAIN SHARES*                                         [ ]

13.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

            1.55%

14.   TYPE OF REPORTING PERSON*

            IC, CO

                  *SEE INSTRUCTIONS BEFORE FILLING OUT!
            INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION
   5
                                  SCHEDULE 13D


CUSIP NO. 014476105                                           PAGE 5 OF 44 PAGES


1.    NAME OF REPORTING PERSON
      S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

            The Insurance Company of the State of Pennsylvania
            IRS No. 31-5540698

2.    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*           (a) [ ]
                                                                  (b) [ ]

3.    SEC USE ONLY

4.    SOURCE OF FUNDS*

            WC

5.    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
      IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)                      [ ]

6.    CITIZENSHIP OR PLACE OF ORGANIZATION

            Incorporated in the State of Pennsylvania

7.    SOLE VOTING POWER



8.    SHARED VOTING POWER

            744,107

9.    SOLE DISPOSITIVE POWER



10.   SHARED DISPOSITIVE POWER

            744,107

11.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON    [ ]

            744,107

12.   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)
      EXCLUDES CERTAIN SHARES*                                        [ ]

13.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

            1.55%

14.   TYPE OF REPORTING PERSON*

            IC, CO

                  *SEE INSTRUCTIONS BEFORE FILLING OUT!
            INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION



   6





Item 1. Security and Issuer


            This Amendment No. 3 to Schedule 13D relates to the common stock,
$1.00 par value per share (the "Common Stock"), of Alexander & Alexander
Services Inc., a Maryland corporation (the "Company"). Capitalized terms used
herein without definition shall have the meanings given to such terms in the
Schedule 13D relating to the Common Stock filed by the Reporting Persons with
the Securities and Exchange Commission on July 15, 1994 (the "Schedule 13D").

Item 2. Identity and Background

            Item 2 is amended by deleting the first sentence of the second
paragraph and replacing it with the following:

            "Starr International Company, Inc., a private holding company
      incorporated in Panama ("SICO"), The Starr Foundation ("The Starr
      Foundation"), a New York not-for-profit corporation, and C.V. Starr & Co.,
      Inc., a Delaware corporation ("Starr"), have the right to vote
      approximately 16.14%, 3.46% and 2.39%, respectively, of the outstanding
      common stock of AIG."

Item 5. Interests in Securities of the Issuer


            Item 5 is amended by adding the following:

            "The information required by this Item is set forth in Items 7
      through 11 and 13 of the cover pages of this Amendment No. 3 to Schedule
      13D and is based on the number of shares of Common Stock outstanding as of
      November 1, 1996 as contained in the Company's quarterly report on Form
      10-Q relating to the quarterly period ended September 30, 1996.

            The number of shares beneficially owned by AIG and the Purchasers,
      as described in Items 7 through 11 and 13 of the cover pages of this
      Amendment No. 3 to Schedule 13D, reflects (i) the Purchasers' purchase of
      the Preferred Shares pursuant to the Stock Purchase and Sale Agreement,
      (ii) the beneficial ownership of the Portfolio Shares by AHAC and (iii)
      the receipt by the Purchasers of dividends on the Preferred Shares owned
      by them which were paid in the form of additional Preferred Shares, as
      reported in Amendment No. 1 to Schedule 13D dated February 15, 1995 and
      Amendment No. 2 to Schedule 13D dated February 15, 1996 and in the amounts
      and on the dates set forth below:


   7

                             Preferred
                             Shares
      Purchaser              Received                    Date
      ---------              ---------                 --------
      AHAC                   62,681                    03/15/96
      AHAC                   63,934                    06/15/96
      AHAC                   65,213                    09/15/96
      AHAC                   66,517                    12/15/96
      CIIC                   13,432                    03/15/96
      CIIC                   13,700                    06/15/96
      CIIC                   13,974                    09/15/96
      CIIC                   14,254                    12/15/96
      ICP                    13,432                    03/15/96
      ICP                    13,700                    06/15/96
      ICP                    13,974                    09/15/96
      ICP                    14,254                    12/15/96"

Item 6.  Contracts, Arrangements, Understandings or
Relationships with Respect to Securities of the Issuer

            Item 6 is amended by adding the following:

            "Pursuant to a Stock Purchase and Sale Agreement dated December 11,
      1996 (the "Aon Purchase Agreement") between AIG and Aon Corporation, a
      Delaware corporation ("Aon"), AIG, for and on behalf of itself, AHAC, CIIC
      and ICP, agreed to sell all of the Preferred Shares to Aon for a purchase
      price of $317,500,000 in cash plus a cash amount equal to all accrued and
      unpaid dividends on the Preferred Shares. The closing (the "Aon Closing")
      of such purchase and sale is scheduled to take place on the date which is
      two business days after Aon or any affiliate of Aon first acquires on or
      after December 11, 1996 in any manner any equity interest in the Company,
      or any right or security convertible or exercisable into any such
      interest, or any right to acquire any thereof, by purchase or tender offer
      or otherwise (an "Aon Equity Acquisition").

            Under the Aon Purchase Agreement, all the rights and preferences of
      the Preferred Shares remain in full force and effect until the Closing;
      provided, however, that AIG agreed to suspend voluntarily its rights under
      Section (9d). of the Articles Supplementary and its right to require the
      Company to repurchase any of the Preferred Shares pursuant to Section 7 of
      the Articles Supplementary related thereto, in each case until the earlier
      of the Closing or termination of the Aon Purchase Agreement. Further, AIG
      agreed not to transfer, assign, sell, pledge or otherwise dispose of any
      of the Preferred Shares to any third party, other than as

   8

      contemplated in the Aon Purchase Agreement, until the earlier of the
      Closing or the termination of the Aon Purchase Agreement.

            The Aon Purchase Agreement (A) terminates without any action by the
      parties thereto on the earliest of (i) if the Closing shall not have
      occurred, April 15, 1997, (ii) if the Closing has not occurred, four
      business days after an Aon Equity Acquisition and (iii) the effective date
      of termination of the Merger Agreement dated December 11, 1996 between
      Aon, the Company and the other parties thereto, as amended from time to
      time, and (B) may be terminated at any time prior to the Closing by a
      written instrument executed and delivered by the parties thereto."

Item 7. Material To Be filed as Exhibits

            Item 7 is amended as follows:

            (a) the previously filed Exhibit A is replaced with the following
      updated exhibit:

                  A.    Executive Officers and Directors of AIG, the Purchasers,
                        SICO, The Starr Foundation and Starr.

            (b) a new Exhibit I is added as follows:

                  I.    Stock Purchase and Sale Agreement, dated as of December
                        11, 1996 between AIG and Aon.



   9


                                    SIGNATURE


            After reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this statement is true, complete and
correct.

Dated: December 24, 1996

                                    AMERICAN INTERNATIONAL GROUP, INC.


                                    By:   /s/ Edward E. Matthews
                                       -----------------------------------------
                                        Name:   Edward E. Matthews
                                        Title:  Vice Chairman


                                    AMERICAN HOME ASSURANCE COMPANY


                                    By:   /s/ Edward E. Matthews
                                       -----------------------------------------
                                        Name:   Edward E. Matthews
                                        Title:  Senior Vice President


                                    COMMERCE AND INDUSTRY INSURANCE
                                     COMPANY


                                    By:   /s/ Edward E. Matthews
                                       -----------------------------------------
                                        Name:   Edward E. Matthews
                                        Title:  Senior Vice President


                                    THE INSURANCE COMPANY OF THE STATE
                                    OF PENNSYLVANIA


                                    By:   /s/ David J. Walsh
                                       -----------------------------------------
                                        Name:   David J. Walsh
                                        Title:  Senior Vice President,
                                                General Counsel



   10




                                  Exhibit Index



Exhibit No.             Description                                     Page No.
- -----------             -----------                                     --------
Exhibit A               Executive Officers and
                          Directors

Exhibit I               Stock Purchase and Sale
                          Agreement dated as of
                          December 11, 1996
                          between AIG and Aon
   1
                                                                       EXHIBIT A


                       AMERICAN INTERNATIONAL GROUP, INC.

                                    DIRECTORS


M. Bernard Aidinoff                        Sullivan & Cromwell
                                           125 Broad Street
                                           New York, New York 10004

Lloyd M. Bentsen                           2600 Texas Commerce Tower
                                           600 Travis Street, Suite 2600
                                           Houston, Texas  77002

Marshall A. Cohen                          The Molson Companies Limited
                                           40 King Street West
                                           Toronto, Ontario  M5H 3Z5

Barber B. Conable, Jr.                     P.O. Box 218
                                           Alexander, New York  14005

Martin Feldstein                           National Bureau of Economic
                                             Research, Inc.
                                           1050 Massachusetts Avenue
                                           Cambridge, Massachusetts 02138

Leslie L. Gonda                            International Lease Finance
                                             Corporation
                                           1999 Avenue of the Stars
                                           Los Angeles, California  90017

Evan G. Greenberg                          American International Group,
                                             Inc.
                                           70 Pine Street
                                           New York, New York 10270

M.R. Greenberg                             American International Group,
                                             Inc.
                                           70 Pine Street
                                           New York, New York  10270

Carla A. Hills                             Hills & Company
                                           1200 19th Street, N.W. - 5th Flr.
                                           Washington, DC  20036
   2
                                      -2-


                       AMERICAN INTERNATIONAL GROUP, INC.

                              DIRECTORS (CONTINUED)


Frank Hoenemeyer                           7 Harwood Drive
                                           Madison, New Jersey  07940

Edward E. Matthews                         American International Group,
                                             Inc.
                                           70 Pine Street
                                           New York, New York  10270

Dean P. Phypers                            220 Rosebrook Road
                                           New Canaan, Connecticut  06840

John J. Roberts                            American International Group,
                                             Inc.
                                           70 Pine Street
                                           New York, New York  10270

Thomas R. Tizzio                           American International Group,
                                             Inc.
                                           70 Pine Street
                                           New York, New York  10270

Edmund S. W. Tse                           American International Assurance
                                             Company, Ltd.
                                           1 Stubbs Road
                                           Hong Kong

Honorary Directors

Marion E. Fajen                            5608 N. Waterbury Road
                                           Des Moines, Iowa  50312

Houghton Freeman                           Freeman Foundation
                                           1880 Mountain Road, #14
                                           Stowe, VT  05672

John I. Howell                             Indian Rock Corporation
                                           P.O. Box 2606
                                           Greenwich, Connecticut  06836

   3
                                      -3-


                       AMERICAN INTERNATIONAL GROUP, INC.

                              DIRECTORS (CONTINUED)

The Honorable Douglas
  MacArthur, II                            2101 Connecticut Ave., N.W.
                                           Apartment #4
                                           Washington, DC  20008

Edwin A.G. Manton                          American International Group,
                                             Inc.
                                           70 Pine Street
                                           New York, New York  10270

Ernest E. Stempel                          American International Group,
                                             Inc.
                                           70 Pine Street
                                           New York, New York  10270

K.K. Tse                                   American International Group,
                                             Inc.
                                           70 Pine Street
                                           New York, New York  10270


   4

                       AMERICAN INTERNATIONAL GROUP, INC.

                               EXECUTIVE OFFICERS


M.R. Greenberg                                  70 Pine Street
Chairman and Chief Executive                    New York, New York 10270
  Officer

Thomas R. Tizzio                                70 Pine Street
President                                       New York, New York 10270

Edwin A.G. Manton                               70 Pine Street
Senior Advisor                                  New York, New York 10270

Ernest E. Stempel                               70 Pine Street
Senior Advisor                                  New York, New York 10270

Edward E. Matthews                              70 Pine Street
Vice Chairman - Investments and                 New York, New York 10270
Financial Services

John J. Roberts                                 70 Pine Street
Vice Chairman - External                        New York, New York 10270
  Affairs

Evan G. Greenberg                               70 Pine Street
Executive Vice President                        New York, New York 10270

Robert Sandler                                  70 Pine Street
Executive Vice President and                    New York, New York 10270
  Senior Actuary and Senior
  Claims Officer

Howard Smith                                    70 Pine Street
Executive Vice President, Chief Financial       New York, New York 10270
Officer and Comptroller

Ronald J. Anderson                              1-1-3 Marunouchi, Chiyoda-ku
Senior Vice President                           Tokyo 100, JAPAN


   5
                                      -2-


                       AMERICAN INTERNATIONAL GROUP, INC.

                         EXECUTIVE OFFICERS (CONTINUED)

Edmund S.W. Tse                                 1 Stubbs Road
Executive Vice President -                      Hong Kong
  Life Insurance

Lawrence W. English                             70 Pine Street
Senior Vice President -                         New York, New York 10270
  Administration

Axel Freudmann                                  72 Wall Street
Senior Vice President -                         New York, New York 10038
  Human Resources

John G. Hughes                                  70 Pine Street
Senior Vice President -                         New York, New York 10270
  Worldwide Claims

Kevin H. Kelley                                 200 State Street
Senior Vice President -                         Boston, MA 02109
  Domestic General

Win J. Neuger                                   70 Pine Street
Senior Vice President - Investments             New York, New York 10270

R. Kendall Nottingham                           1 ALICO Plaza, P.O. Box 667
Senior Vice President -                         Wilmington, DE 19899
  Life Insurance

Robert J. O'Connell                             80 Pine Street
Senior Vice President                           New York, New York 10038

Petros K. Sabatacakis                           70 Pine Street
Senior Vice President -                         New York, New York 10270
  Financial Services

B. Michael Schlenke                             70 Pine Street
Senior Vice President                           New York, New York 10270

   6

                                      -3-


                       AMERICAN INTERNATIONAL GROUP, INC.

                         EXECUTIVE OFFICERS (CONTINUED)

Martin J. Sullivan                              70 Pine Street
Senior Vice President                           New York, New York 10270

Steven Y.N. Tse                                 70 Pine Street
Senior Vice President                           New York, New York 10270

Hamilton C. Da Silva                            70 Pine Street
Vice President                                  New York, New York 10270

Florence A. Davis                               70 Pine Street
Vice President and General                      New York, New York 10270
  Counsel

William A. Freda                                70 Pine Street
Vice President                                  New York, New York 10270

David M. Hupp                                   70 Pine Street
Vice President                                  New York, New York 10270

L. Oakley Johnson                               70 Pine Street
Vice President - Corporate                      New York, New York 10270
  Affairs

Thomas G. Kaiser                                70 Pine Street
Vice President                                  New York, New York 10270

Jeffrey M. Kestenbaum                           80 Pine Street
Vice President                                  New York, New York 10038

Robert E. Lewis                                 70 Pine Street
Vice President                                  New York, New York 10270

Christian Milton                                99 John Street
Vice President - Reinsurance                    New York, New York 10038

Nicholas A. O'Kulich                            70 Pine Street
Vice President - Life                           New York, New York 10270
  Insurance


   7
                                      -4-


                       AMERICAN INTERNATIONAL GROUP, INC.

                         EXECUTIVE OFFICERS (CONTINUED)

Douglas Paul                                    70 Pine Street
Vice President - Strategic                      New York, New York 10270
  Planning

Frank Petralito II                              70 Pine Street
Vice President and Director                     New York, New York 10270
  Of Taxes

Theodore Rupley                                 70 Pine Street
Vice President                                  New York, New York 10270

Kathleen E. Shannon                             70 Pine Street
Vice President, Secretary                       New York, New York 10270
  and Associate General
  Counsel

Joseph C. Smetana, Jr.                          70 Pine Street
Vice President                                  New York, New York 10270

Joseph Umansky                                  70 Pine Street
Vice President and Deputy                       New York, New York  10270
  Comptroller

John T. Wooster, Jr.                            72 Wall Street
Vice President -                                New York, New York 10270
  Communications

William N. Dooley                               70 Pine Street
Treasurer                                       New York, New York 10270


   8



                         AMERICAN HOME ASSURANCE COMPANY

                                    DIRECTORS


Michael J. Castelli                             American Home Assurance
                                                Company
                                                99 John Street
                                                New York, New York  10038

Charles Dangelo                                 70 Pine Street
                                                New York, New York 10270

Florence A. Davis                               70 Pine Street
                                                New York, New York 10270

Evan G. Greenberg                               70 Pine Street
                                                New York, New York 10270

M.R. Greenberg                                  American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York  10270

John G. Hughes                                  American Home Assurance
                                                Company
                                                70 Pine Street
                                                New York, New York  10270

David M. Hupp                                   American International Companies
                                                70 Pine Street
                                                New York, New York 10270

Edwin A.G. Manton                               American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York  10270

Edward E. Matthews                              American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York  10270


   9



                                       -2-



                         AMERICAN HOME ASSURANCE COMPANY

                              DIRECTORS (CONTINUED)

Christian Milton                                American International Group,
                                                Inc.
                                                99 John Street
                                                New York, New York  10038

Kristian P. Moor                                70 Pine Street
                                                New York, New York 10270

Win J. Neuger                                   70 Pine Street
                                                New York, New York 10270

Takaki Sakai                                    A.I.U. K.K.
                                                P.O. Box 951
                                                Tokyo, Japan

Robert Sandler                                  American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York  10270

Michael B. Schlenke                             American Home Assurance
                                                Company
                                                70 Pine Street
                                                New York, New York  10270

Howard I. Smith                                 American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York  10270

Thomas R. Tizzio                                American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York  10270


   10



                         AMERICAN HOME ASSURANCE COMPANY

                               EXECUTIVE OFFICERS


Thomas R Tizzio                                 70 Pine Street
Chairman of the Board                           New York, New York 10270

Michael B. Schlenke                             70 Pine Street
President and Chief Executive                   New York, New York 10270
  Officer

Frank Douglas                                   70 Pine Street
Senior Vice President and                       New York, New York 10270
  Actuary

John G. Hughes                                  70 Pine Street
Senior Vice President                           New York, New York 10270

Vincent J. Masucci                              777 S. Figueroa Street
                                                18th Floor
                                                Los Angeles, CA 90017

Edward E. Matthews                              70 Pine Street
Senior Vice President                           New York, New York 10270

Timothy P. Mitchell                             70 Pine Street
Executive Vice President                        New York, New York 10270

David M. Hupp                                   70 Pine Street
Senior Vice President                           New York, New York 10270 /9

Charles Schader                                 70 Pine Street
Senior Vice President                           New York, New York 10270

William R. Jacobi                               70 Pine Street
Senior Vice President                           New York, New York 10270


   11

                                       -2-



                         AMERICAN HOME ASSURANCE COMPANY

                         EXECUTIVE OFFICERS (CONTINUED)

David J. Walsh                                  70 Pine Street
Senior Vice President,                          New York, New York 10270
  General Counsel

Robert Beier                                    99 John Street
Vice President                                  New York, New York 10038

John J. Blumenstock                             99 John Street
Vice President                                  New York, New York 10038

Michael J. Castelli                             99 John Street
Senior Vice President                           New York, New York 10038

Lawrence W. Carlstrom                           520 Pike Street
Vice President                                  Suite 2700
                                                Seattle, WA  98101

John Colona                                     505 Carr Road
Vice President                                  Willmington, DE 19809

Robert K. Conry                                 70 Pine Street
Vice President                                  New York, New York 10270

Brian S. Frisch                                 99 John Street
Vice President                                  New York, New York 10038

Kumar Gursahaney                                99 John Street
Vice President                                  New York, New York 10038

Harold Jacobowitz                               70 Pine Street
Vice President                                  New York, New York 10270

Dee Klock                                       99 John Street
Vice President                                  New York, New York 10038

Gary McMillan                                   145 Wellington Street West
Vice President and Chief                        Toronto, Ontario, Canada M5J 1H8
  Agent in Canada


   12

                                       -3-



                         AMERICAN HOME ASSURANCE COMPANY

                         EXECUTIVE OFFICERS (CONTINUED)

Robert Meyer                                    200 Liberty Street
Vice President and                              New York, New York 10281
  Assistant Treasurer

Christian Milton                                99 John Street
Vice President - Reinsurance                    New York, New York 10038

Kristian Moor                                   70 Pine Street
Executive Vice President                        New York, New York 10270

David Pinkerton                                 200 Liberty Street
Vice President -                                New York, New York 10281
  Private Investments

John Schumacher                                 70 Pine Street
Senior Vice President                           New York, New York 10270



   13



                              THE STARR FOUNDATION

                         EXECUTIVE OFFICERS & DIRECTORS


M.R. Greenberg                                  70 Pine Street
Director and Chairman                           New York, New York 10270

T.C. Hsu                                        70 Pine Street
Director and President                          New York, New York 10270

Marion Breen                                    70 Pine Street
Director and Vice President                     New York, New York 10270

John J. Roberts                                 70 Pine Street
Director                                        New York, New York 10270

Ernest E. Stempel                               70 Pine Street
Director                                        New York, New York 10270

Houghton Freeman                                70 Pine Street
Director                                        New York, New York 10270

Edwin A.G. Manton                               70 Pine Street
Director                                        New York, New York 10270

Gladys Thomas                                   70 Pine Street
Vice President                                  New York, New York 10270

Frank Tengi                                     70 Pine Street
Treasurer                                       New York, New York 10270

Ida Galler                                      70 Pine Street
Secretary                                       New York, New York 10270


   14



                             C.V. STARR & CO., INC.

                         EXECUTIVE OFFICERS & DIRECTORS


Houghton Freeman                                70 Pine Street
Director and Senior                             New York, New York 10270
  Vice President

Evan G. Greenberg                               70 Pine Street
Director and Vice                               New York, New York 10270
  President

Maurice R. Greenberg                            70 Pine Street
Director, President and                         New York, New York 10270
  Chief Executive Officer

Edwin A.G. Manton                               70 Pine Street
Director                                        New York, New York 10270

Edward E. Matthews                              70 Pine Street
Director, Senior Vice                           New York, New York 10270
  President and Secretary

John J. Roberts                                 70 Pine Street
Director and Senior                             New York, New York 10270
  Vice President

Robert M. Sandler                               70 Pine Street
Director and Vice                               New York, New York 10270
  President

Howard I. Smith                                 70 Pine Street
Director and Vice President                     New York, New York 10270

Ernest E. Stempel                               70 Pine Street
Director and Senior                             New York, New York 10270
  Vice President

Thomas R. Tizzio                                70 Pine Street
Director and Vice                               New York, New York 10270
  President


   15

                                       -2-



                             C.V. STARR & CO., INC.

                   EXECUTIVE OFFICERS & DIRECTORS (CONTINUED)

Edmund Tse                                      No. 1 Stubbs Road
Director and Vice President                     Hong Kong

Stephen Y.N. Tse                                70 Pine Street
Director and Vice President                     New York, New York 10270

Gary Nitzsche                                   70 Pine Street
Treasurer and Comptroller                       New York, New York 10270


   16




                        STARR INTERNATIONAL COMPANY, INC.

                         EXECUTIVE OFFICERS & DIRECTORS


Houghton Freeman                                70 Pine Street
Director                                        New York, New York 10270

Evan G. Greenberg                               70 Pine Street
Director                                        New York, New York 10270

Maurice R. Greenberg                            70 Pine Street
Director and Chairman                           New York, New York 10270
  of the Board

Joseph C.H. Johnson                             P.O. Box 152
Executive Vice President and                    Hamilton, Bermuda
  Treasurer

Edwin A.G. Manton                               70 Pine Street
Director                                        New York, New York 10270

Edward E. Matthews                              70 Pine Street
Director                                        New York, New York 10270

L. Michael Murphy                               P.O. Box 152
Director and Secretary                          Hamilton, Bermuda

John J. Roberts                                 70 Pine Street
Director                                        New York, New York 10270

Robert M. Sandler                               70 Pine Street
Director                                        New York, New York 10270

Ernest E. Stempel                               70 Pine Street
Director and President                          New York, New York 10270

Thomas R. Tizzio                                70 Pine Street
Director                                        New York, New York 10270

Edmund S.W. Tse                                 No. 1 Stubbs Road
Director                                        Hong Kong


   17



                     COMMERCE AND INDUSTRY INSURANCE COMPANY

                                    DIRECTORS


Michael J. Castelli                             American Home Assurance
                                                Company
                                                99 John Street
                                                New York, New York 10038

Florence A. Davis                               Commerce & Industry Insurance
                                                Company
                                                70 Pine Street
                                                New York, New York 10270

M.R. Greenberg                                  American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York 10270

John G. Hughes                                  American Home Assurance
                                                Company
                                                70 Pine Street
                                                New York, New York 10270

David Hupp                                      American Home Assurance
                                                Company
                                                70 Pine Street
                                                New York, New York 10270

Kevin H. Kelley                                 Lexington Insurance Company
                                                200 State Street
                                                Boston, Massachusetts 02109

Edwin A.G. Manton                               American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York 10270

Edward E. Matthews                              American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York 10270


   18

                                       -2-



                     COMMERCE AND INDUSTRY INSURANCE COMPANY

                              DIRECTORS (CONTINUED)

Win J. Neuger                                   Commerce & Industry Insurance
                                                  Company
                                                70 Pine Street
                                                New York, New York 10270

Howard I. Smith                                 American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York 10270

Thomas R. Tizzio                                American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York 10270


   19



                     COMMERCE AND INDUSTRY INSURANCE COMPANY

                               EXECUTIVE OFFICERS


Kevin H. Kelley                                 200 State Street
Chairman of the Board                           Boston, MA 20109
  Chief Executive Officer

Joseph L. Boren                                 70 Pine Street
Executive Vice President                        New York, New York 10270

Frank Douglas                                   70 Pine Street
Senior Vice President and                       New York, New York 10270
  Actuary

Edward E. Matthews                              70 Pine Street
Senior Vice President                           New York, New York 10270

David J. Walsh                                  70 Pine Street
Senior Vice President, General                  New York, New York 10270
  Counsel

Vincent J. Masucci                              777 S. Figueroa Street
Senior Vice President                           18th Floor
                                                Los Angeles, CA  90017

Robert Beier                                    99 John Street
Vice President                                  New York, New York 10038

John J. Blumenstock                             99 John Street
Vice President                                  New York, New York 10038

Michael J. Castelli                             99 John Street
Senior Vice President, Treasurer                New York, New York 10038
  and Comptroller

David Hupp                                      70 Pine Street
Senior Vice President                           New York, New York  10270

Brian S. Firsch                                 99 John Street
Vice President                                  New York, New York 10038


   20

                                       -2-



                     COMMERCE AND INDUSTRY INSURANCE COMPANY

                         EXECUTIVE OFFICERS (CONTINUED)

Kumar Gursahaney                                99 John Street
Vice President                                  New York, New York 10038

Shaun E. Kelly                                  70 Pine Street
Vice President                                  New York, New York 10270

Dee Klock                                       99 John Street
Vice President                                  New York, New York 10038

Robert Meyer                                    200 Liberty Street
Vice President and                              New York, New York 10281
  Assistant Treasurer

Christian Milton                                99 John Street
Vice President                                  New York, New York 10038

Clifford E. Moore                               70 Pine Street
Vice President -                                New York, New York 10270
  Administration

David Pinkerton                                 200 Liberty Street
Vice President - Private                        New York, New York 10281
  Investments


   21



               THE INSURANCE COMPANY OF THE STATE OF PENNSYLVANIA

                                    DIRECTORS


Michael J. Castelli                             American Home Assurance
                                                Company
                                                99 John Street
                                                New York, New York  10038

M.R. Greenberg                                  American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York  10270

John G. Hughes                                  American Home Assurance
                                                Company
                                                70 Pine Street
                                                New York, New York  10270

David Hupp                                      American Home Assurance
                                                Company
                                                70 Pine Street
                                                New York, New York  10270

Edwin A.G. Manton                               American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York  10270

Edward E. Matthews                              American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York  10270

Win J. Neuger                                   The Insurance Company of the
                                                State of Pennsylvania
                                                70 Pine Street
                                                New York, New York 10270

Howard I. Smith                                 American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York  10270


   22

                                       -2-



               THE INSURANCE COMPANY OF THE STATE OF PENNSYLVANIA

                              DIRECTORS (CONTINUED)

Theodore Rupley                                 American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York  10270

Thomas R. Tizzio                                American International Group,
                                                Inc.
                                                70 Pine Street
                                                New York, New York  10270


   23








               THE INSURANCE COMPANY OF THE STATE OF PENNSYLVANIA

                               EXECUTIVE OFFICERS


Thomas R. Tizzio                                70 Pine Street
Chairman of the Board                           New York, New York 10270

Theordore Rupley                                70 Pine Street
President                                       New York, New York 10270

Frank Douglas                                   70 Pine Street
Actuary                                         New York, New York 10270

David J. Walsh                                  70 Pine Street
Senior Vice President,                          New York, New York 10270
  General Counsel

Michael J. Castelli                             99 John Street
Senior Vice President, Treasurer and            New York, New York 10038
  Comptroller

Robert Meyer                                    200 Liberty Plaza
Vice President and                              New York, New York 10281
  Assistant Treasurer

Christian Milton                                99 John Street
Vice President                                  New York, New York 10038

David Pinkerton                                 200 Liberty Plaza
Vice President - Private                        New York, New York 10281
  Investments, Assistant
  Treasurer

David M. Hupp                                   70 Pine Street
Senior Vice President                           New York, New York 10270

Vincent J. Masucci                              777 S. Figueroa Street
Senior Vice President                           18th Floor
                                                Los Angeles, CA 90017


   24

                                      -3-


               THE INSURANCE COMPANY OF THE STATE OF PENNSYLVANIA

                         EXECUTIVE OFFICERS (CONTINUED)

Edward E. Matthews                             70 Pine Street
Senior Vice President                          New York, NY  10270

Marc Timothy Willis                            500 Madison Street
Senior Vice President                          10th Floor
                                               Chicago, Illinois  60606-2511

Robert Beier                                   99 John Street
Vice President                                 New York, NY  10038

John J. Blumenstock                            99 John Street
Vice President                                 New York, NY  10038

Lawrence W. Carlstrom                          National Union Fire Insurance Co.
Vice President                                 520 Pike Street, Suite 2700
                                               Seattle, Washington  98101

John G. Colona                                 505 Carr Road
Vice President                                 Wilmington, Delaware 19809

Robert K. Conry                                70 Pine Street
Vice President                                 New York, NY  10270

Brian S. Frisch                                99 John Street
Vice President                                 New York, NY  10038

Kumar Gursahaney                               99 John Street
Vice President                                 New York, NY  10038

Harold S. Jacobowitz                           70 Pine Street
Vice President                                 New York, New York 10270

Dee R. Klock                                   99 John Street
Vice President                                 New York, NY  10038


   25

                                      -4-


               THE INSURANCE COMPANY OF THE STATE OF PENNSYLVANIA

                         EXECUTIVE OFFICERS (CONTINUED)

Michael G. McCarter                             70 Pine Street
Vice President                                  New York, New York 10270

Tobey J. Russ                                   70 Pine Street
Vice President                                  New York, New York 10270
   1
                                                                       EXHIBIT I


                        STOCK PURCHASE AND SALE AGREEMENT


            Stock Purchase and Sale Agreement (the "Agreement") dated as of
December 11, 1996 between AMERICAN INTERNATIONAL GROUP, INC., a Delaware
corporation and including its wholly-owned subsidiaries ("AIG"), and AON
CORPORATION, a Delaware corporation ("Aon").

            WHEREAS, AIG desires to sell to Aon or a designated wholly owned
subsidiary thereof (the "Purchaser"), and the Purchaser desires to purchase, an
aggregate of 4,846,232 shares (the "Shares") (including 95,024 shares to be
issued as a regular quarterly dividend on December 15, 1996) of 8% Series B
Cumulative Convertible Preferred Stock, par value $1.00 per share, of A&A (the
"Series B Stock") for the consideration and upon the terms and subject to the
conditions set forth herein.

            NOW, THEREFORE, in consideration of the premises and of the
respective covenants, agreements and conditions contained herein, each of the
parties agree as follows:

            1.  Closing

                  a. Time and Place of the Closing. The Closing (the "Closing")
      shall take place at the offices of Cahill Gordon & Reindel, 80 Pine
      Street, New York, New York on the date which is two Business Days after
      Aon or any affiliate of Aon first acquires on or after the date hereof in
      any manner any equity interest in Alexander & Alexander Services Inc.
      ("A&A"), or any right or security convertible or exercisable into any such
      interest, or any right to acquire any thereof, by purchase or tender offer
      or otherwise (an "Aon Equity Acquisition"). Aon shall give AIG two
      business days prior written notice of the date the Closing is scheduled to
      occur. The "Closing Date" shall be the date the Closing occurs.

                  b. Transactions at the Closing. At the Closing, subject to the
      terms and conditions of this Agreement, AIG shall sell to Aon, and Aon
      shall purchase from AIG, the Shares. At the Closing, AIG shall deliver to
      Aon a certificate or certificates representing the Shares, with stock
      powers duly endorsed in blank for transfer, against receipt of the
      Purchase Price with respect thereto by wire transfer of immediately
      available funds to an account or accounts previously designated by AIG.


   2

                                      -2-


                  c. Purchase Price. The Purchase Price for the Shares shall be
      $317,500,000 in cash plus a cash amount equal to all accrued and unpaid
      dividends on the Series B Stock to and including the Closing Date (as well
      as cash equal to the liquidation preference of any additional shares of
      Series B Stock issued as a pay-in-kind dividend on the Series B Stock
      after December 15, 1996, if any, which shares shall be included in the
      definition of "Shares" herein). In the event that the Closing Date occurs
      after the record date for any dividend payment date after December 15,
      1996 and before the dividend payment date, AIG will assign to Aon its
      right to receive any dividend so declared by A&A.

            2.  Conditions to the Closing

                  a. Conditions Precedent to the obligations of Aon. The
      obligations of Aon to be discharged under this Agreement on the Closing
      Date are subject to satisfaction of the following conditions at the
      Closing (unless expressly waived in writing by Aon at or prior to the
      Closing):

                        (i) Compliance by AIG. All of the terms, covenants and
      conditions of this Agreement to be complied with and performed by AIG at
      or prior to the Closing shall have been complied with and performed by AIG
      in all material respects, and the representations and warranties made by
      AIG in this Agreement shall be true and correct in all material respects
      at and as of the Closing, with the same force and effect as though such
      representations and warranties had been made at and as of the Closing.

                        (ii) No Injunction. No statute, rule, regulation,
      executive order, decree, temporary restraining order, preliminary or
      permanent injunction or other order issued by any court of competent
      jurisdiction or other governmental entity preventing the consummation of
      the purchase of the Shares shall be in effect.

                  b. Conditions Precedent to Obligations of AIG. The obligations
      of AIG to be discharged under this agreement on the Closing Date are
      subject to satisfaction of the following conditions at the Closing (unless
      waived by AIG at or prior to the Closing):

                        (i) Compliance by Aon. All of the terms, covenants and
      conditions of this Agreement to be complied with and performed by Aon at
      or prior to the Closing shall have been complied with and performed by it
      in all material respects, and the representations and warranties made by
      Aon in this Agreement shall be true and correct in all material respects
      at and as of the Closing, with the same force and
   3
                                      -3-


      effect as though such representations and warranties had been made at and
      as of the Closing.

                        (ii) No Injunction. No statute, rule, regulation,
      executive order, decree, temporary restraining order, preliminary or
      permanent injunction or other order issued by any court of competent
      jurisdiction or other governmental entity preventing the consummation of
      the purchase of the Shares shall be in effect.

            3.  Representations and Warranties of Aon.  Aon hereby represents
      and warrants to AIG:

                  a. Organization, Good Standing, Power, Authority, Etc. Aon is
      a corporation duly organized, validly existing and in good standing under
      the laws of the State of Delaware. Aon has the full corporate power and
      authority to execute and deliver this Agreement and to perform its
      obligations under this Agreement. Aon has taken all action required by
      law, its Certificate of Incorporation, its by-laws or otherwise required
      to be taken by it to authorize the execution, delivery and performance by
      it of this Agreement. This Agreement is a valid and binding obligation of
      Aon, enforceable in accordance with its terms, except that such
      enforcement may be subject to bankruptcy, insolvency, reorganization,
      moratorium or other similar laws now or hereafter in effect relating to
      creditors' rights and general principles of equity.

                  b. No Conflicts. Neither the execution and delivery of this
      Agreement nor the consummation by Aon of the transactions contemplated
      hereby will (i) conflict with, or result in a breach of, any provision of
      its charter or by-laws, (ii) violate any statute or law or any judgment,
      order, writ, injunction, decree, rule or regulation applicable to Aon
      and/or any of its subsidiaries or (iii) cause a breach of any material
      contract of Aon, which breach would prevent consummation of the
      transactions contemplated hereby.

                  c. No Consents. No consent, authorization or approval of, or
      declaration, filing or registration with, or exemption by, any
      governmental or regulatory authority is required in connection with the
      execution and delivery of, and the performance by Aon of its obligations
      under, this Agreement or the consummation by Aon of the transactions to be
      performed by it as contemplated hereby, other than the approvals of the
      Department of Insurance of the States of Delaware, New York, and Vermont
      with respect to the transactions contemplated hereby and filings under the
      Hart-Scott-
   4
                                      -4-


      Rodino Antitrust Improvements Act ("HSR") and the Competition Act
      (Canada).

                  d. Investment Intent, Etc. Aon (i) has such knowledge,
      sophistication and experience in business and financial matters that it is
      capable of evaluating the merits and risks of an investment in the Shares,
      (ii) can bear the economic risk of an investment in the Shares and can
      afford a complete loss of such investment, and (iii) is purchasing the
      Shares for investment and not with a view to, or for a sale in connection
      with, any public distribution in violation of the Securities Act of 1933
      (the "Act").

            4. Representations and Warranties of AIG. AIG hereby represents and
warrants to Aon:

                  a. Organization, Good Standing, Power, Authority, Etc. AIG is
      a corporation duly organized, validly existing and in good standing under
      the laws of the State of Delaware. AIG has the full power and authority to
      execute and deliver this Agreement. AIG has taken all action required by
      law, its charter, its by-laws or otherwise required to be taken by it to
      authorize the execution and delivery of this Agreement and the
      consummation of the transactions contemplated to be performed by it
      hereby. This Agreement is a valid and binding agreement of AIG,
      enforceable in accordance with its terms, except that such enforcement may
      be subject to bankruptcy, insolvency, reorganization, moratorium or other
      similar laws now or hereafter in effect relating to creditors' rights and
      general principles of equity.

                  b. No Conflicts. Neither the execution and delivery of this
      Agreement nor the consummation by AIG of the transactions contemplated
      hereby will (i) conflict with, or result in a breach of, any provision of
      its charter or by-laws, (ii) violate any statute or law or any judgment,
      order, writ, injunction, decree, rule or regulation applicable to AIG
      and/or any of its subsidiaries or (iii) cause a breach of any material
      contract of AIG, which breach would prevent consummation of the
      transactions contemplated hereby.

                  c. No Consents. No consent, authorization or approval of, or
      declaration, filing or registration with, or exemption by, any
      governmental or regulatory authority is required in connection with the
      execution and delivery of, and the performance by AIG of its obligations
      under, this Agreement or the consummation by AIG of the transactions to be
      performed by it as contemplated hereby, other than such filings under HSR
      as may be required.
   5
                                      -5-


                  d. Title to Shares. AIG, indirectly through its wholly owned
      subsidiaries, owns the Shares. Each wholly owned subsidiary of AIG which
      owns Shares has legal and valid title to such Shares, free and clear of
      all restrictions on transfer (other than those imposed by the Act,
      securities or Blue Sky laws of certain jurisdictions, the A&A charter and
      restrictions under Section 6 of the Stock Purchase Agreement (the "Stock
      Purchase Agreement") by and between AIG and A&A dated as of June 6, 1994),
      liens, encumbrances, security interests and claims whatsoever.

            5. Covenants.

                  a.  Pre-Closing Activities.  From and after the date of
      this Agreement until the Closing, each of AIG and Aon shall act with
      good faith towards, and shall use its reasonable best efforts to
      consummate, the transactions contemplated by this Agreement.

                  b. Publicity. Each of AIG and Aon will consult with each other
      before issuing any press release or otherwise making any public statements
      with respect to the transactions contemplated hereby and shall not issue
      any such press release or make any such public statement prior to such
      consultation, except as may be required by law.

                  c. Dividends.  Aon will not waive or modify its rights
      under the Merger Agreement that require A&A to pay dividends on the
      Series B Stock in cash after December 15, 1996.

                  d. Series B Stock. All the rights and preferences of the
      Series B Stock shall remain in full force and effect until the Closing;
      provided, however, that AIG agrees to suspend voluntarily its rights under
      Section 9(d) of the Articles Supplementary and its right to require A&A to
      repurchase any of the Series B Stock pursuant to Section 7 of the Articles
      Supplementary related thereto, in each case until the earlier of the
      Closing or termination of this Agreement. AIG will not transfer, assign,
      sell, pledge or otherwise dispose of any of the Shares to any third party,
      other than as contemplated in this Agreement, until the earlier of the
      Closing or the termination of this Agreement.

                  e. Waiver of Rights and Acknowledgment. Effective as of the
      date hereof, AIG waives its rights, if any, under Section 6.o of the Stock
      Purchase Agreement. AIG acknowledges that the consent of AIG referred to
      in paragraph (1) of the letter between A&A and AIG dated June 30, 1994, or
      any other consent related to the same subject matter,
   6
                                      -6-


      cannot be withheld or delayed with respect to commercially reasonable
      actions proposed to be taken by A&A.

            6. Termination. This Agreement (A) shall terminate without any
      action by the parties hereto on the earliest of (i) if the Closing shall
      not have occurred, April 15, 1997, (ii) if the Closing has not occurred,
      four Business Days after an Aon Equity Acquisition and (iii) the effective
      date of termination of the Merger Agreement between Aon, A&A and the other
      parties thereto, dated the date hereof and as amended from time to time,
      and (B) may be terminated at any time prior to the Closing by a written
      instrument executed and delivered by the parties hereto.

            7. Miscellaneous.

                  a. Notices. All notices or other communications given or made
      hereunder shall be validly given or made if in writing and delivered by
      facsimile transmission or in person at, or mailed by registered or
      certified mail, return receipt requested, postage prepaid, to, the
      following addressees (and shall be deemed effective at the time of receipt
      thereof).

            If to Aon:      Aon Corporation
                            123 North Wacker Drive
                            Chicago, IL 60606
                            Attention: Raymond I. Skilling, Esq.
                                       Executive Vice President &
                                       Chief Counsel

            If to AIG:      American International Group, Inc.
                            70 Pine Street
                            New York, New York 10270
                            Attention: Vice Chairman - Investments
                                       and Financial Services

Or to such other addresses the party to whom notice is to be given may have
previously furnished in writing to the others in the manner set forth above.

                  b. Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY AND
      CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, AS APPLIED
      TO CONTRACTS MADE AND PERFORMED WITHIN THE STATE OF NEW YORK, WITHOUT
      REGARD TO PRINCIPLES OF CONFLICTS OF LAW. EACH OF THE PARTIES HERETO
      AGREES TO SUBMIT TO THE JURISDICTION OF THE STATE AND FEDERAL COURTS IN
      THE STATE OF NEW YORK IN ANY ACTION OR PROCEEDING ARISING OUT OF OR
      RELATING TO THIS AGREEMENT.
   7
                                      -7-


                  c. Severability; Interpretation. If any term, provision,
      covenant or restriction of this Agreement is held by a court of competent
      jurisdiction to be invalid, void or unenforceable, each of Aon and AIG
      directs that such court interpret and apply the remainder of this
      Agreement in the manner which it determines most closely effectuates their
      intent in entering into this Agreement, and in doing so particularly take
      into account the relative importance of the term, provision, covenant or
      restriction being held invalid, void or unenforceable.

                  d. Headings. The section headings herein are for convenience
      only and shall not affect the construction hereof.

                  e. Assignment. Neither this Agreement nor any of the rights,
      interests or obligations hereunder shall be assigned by any party without
      the prior written consent of the other party, except that Aon may assign
      the right to acquire the Shares in accordance with the terms hereof to one
      or more wholly owned subsidiaries of Aon.

                  f. Counterparts. This Agreement may be executed in
      counterparts, each of which shall be deemed to be an original and all of
      which together shall be deemed to be one and the same instrument.

                  g. Survival of Representations and Warranties. The
      representations and warranties in this Agreement shall survive the Closing
      Date.

                  h. Entire Agreement; No Third Party Beneficiaries. This
      Agreement, including the documents and instruments referred to herein,
      constitutes the entire agreement, and supersedes all prior agreements and
      understandings, both written and oral, between the parties with respect to
      the subject matter hereof and is not intended to confer upon any person
      other than the parties any rights or remedies hereunder.

                  i. Enforcement of this Agreement. The parties agree that
      irreparable damage would occur in the event that any of the provisions of
      this Agreement were not performed in accordance with their specific terms
      or were otherwise breached. It is accordingly agreed that the parties
      shall be entitled to an injunction or injunctions to prevent breaches of
      this Agreement and to enforce specifically the terms and provisions hereof
      in any court of the United States or any state having jurisdiction, this
      being in addition to any other remedy to which they are entitled at law or
      in equity.
   8
                                      -8-


                  j.  Amendment.  This Agreement may be amended, modified or
      supplemented; provided that the same shall be in writing and be signed
      by each of the parties hereto.
   9
                                      -9-


            IN WITNESS WHEREOF, the parties hereto have executed this Agreement.

                                    AMERICAN INTERNATIONAL
                                      GROUP, INC., for and on behalf
                                      of itself and its wholly owned
                                      subsidiaries


                                    By:/s/ M.R. Greenberg
                                       -----------------------------------------
                                       Name:   M.R. Greenberg
                                       Title:  Chairman and Chief
                                                   Executive Officer


                                    AON CORPORATION


                                    By:/s/ Patrick G. Ryan
                                       -----------------------------------------
                                       Name:   Patrick G. Ryan
                                       Title:  Chairman, President & Chief
                                                   Executive Officer