Document:

<PAGE>

                                                                   EXHIBIT 10.21

                        AMENDMENT TO OPERATING AGREEMENT

     Amendment to Operating Agreement, dated November 22, 2002 (the
"Amendment"), among GGP Limited Partnership, a Delaware limited partnership
("GGPLP"), The Comptroller of the State of New York as Trustee of the Common
Retirement Fund, a fund established pursuant to NY Retirement and Social
Security Law Section 422, in the custody of the Comptroller of the State of New
York ("NYSCRF" and, together with GGPLP, the "Members"), and GGP/Homart II
L.L.C., a Delaware limited liability company (the "Company").

                                    RECITALS:

     WHEREAS, the Members are all of the members of the Company;

     WHEREAS, the Company and the Members have entered into that certain
Operating Agreement dated November 10, 1999, as amended (the "Existing Operating
Agreement"), relating to, among other things, the management of the Company and
the transfer of units of membership interest therein;

     WHEREAS, the Company previously made certain loans to the Members,
including NYSCRF (such loans that have been made to NYSCRF, the "NYSCRF Existing
Loans");

     WHEREAS, Glendale I Mall Associates, LLC, a Delaware limited liability
company ("Glendale LLC"), and certain subsidiaries of Glendale LLC (such
subsidiaries, together with Glendale I, the "Glendale Owners") are the owners of
the shopping center and office building located in Glendale, California and
commonly known as Glendale Galleria (the "Glendale Property");

     WHEREAS, JSG, LLC, a Delaware limited liability company ("JSG"), owns a
17.2977% membership interest in Glendale LLC (the "JSG Membership Interest"),
Connecticut General Life Insurance Company, a Connecticut corporation
("Connecticut"), owns a 43.1737% membership interest in Glendale LLC (the
"Connecticut Membership Interest") and New York State Teachers' Retirement
System, a public pension system created and existing pursuant to Article 11 of
the Education Law of the State of New York and having the powers and privileges
of a corporation pursuant to Section 502 thereof ("NYSTRS" and, together with
Connecticut, the "Selling Members"), owns a 39.5286% membership interest in
Glendale LLC (the "NYSTRS Membership Interest" and, together with the
Connecticut Membership Interest and the JSG Membership Interest, the "Membership
Interests");

     WHEREAS, the Glendale Owners previously obtained a mortgage loan in the
original principal amount of $170,000,000 from German American Capital
Corporation (the "Existing Mortgage Loan");

<PAGE>

     WHEREAS, GGPLP, JSG and the Selling Members entered into that certain
Contribution and Sale Agreement dated October 18, 2002 (as the same may be
amended from time to time, the "Contribution and Sale Agreement"), pursuant to
which GGPLP agreed to (a) acquire the JSG Membership Interest in exchange for
the issuance of Series C Preferred Units of limited partnership in GGPLP (the
"Series C Preferred Units"), (b) purchase the Membership Interests of the
Selling Members for the cash consideration specified therein and (c) repay the
Existing Mortgage Loan in full;

     WHEREAS, pursuant to the Contribution and Sale Agreement, GGPLP and JSG
agreed to, at the closing of the transactions contemplated thereby (the
"Closing"), enter into a Pledge Agreement substantially in the form attached
thereto (the "JSG Pledge Agreement") and certain documents relating to the
issuance of the Series C Preferred Units as described in Section 1.2 thereof
(collectively, the "Series C Preferred Units Documents"), including without
limitation a Tax Matters Agreement substantially in the form attached thereto
(the "Tax Matters Agreement");

     WHEREAS, the parties hereto intend that the cash purchase price to be paid
pursuant to the Contribution and Sale Agreement and the repayment of the
Existing Mortgage Loan be funded from the proceeds of a new mortgage loan on the
Glendale Property (the "New Mortgage Loan") and certain other financing (but any
such financing shall require the approval of the Board of Directors of the
Company as provided in the Existing Operating Agreement);

     WHEREAS, the parties hereto desire that (a) GGPLP contribute to the capital
of the Company (i) all of the right, title and interest of GGPLP under the
Contribution and Sale Agreement that relates to the acquisition of the
Membership Interests of the Selling Members and (ii) following the acquisition
of the JSG Membership Interest pursuant to the Contribution and Sale Agreement,
all of the right, title and interest of GGPLP in and to the JSG Membership
Interest and that (b) NYSCRF make an additional capital contribution to the
Company in an amount equal to the aggregate base liquidation preference of the
Series C Preferred Units issued by GGPLP pursuant to the Contribution and Sale
Agreement (which is estimated to be approximately $42.4 million) as provided
herein; and

     WHEREAS, the parties desire that the Company amend the Existing Operating
Agreement as hereinafter set forth to reflect their understandings regarding the
foregoing.

     NOW, THEREFORE, for and in consideration of the mutual covenants and
agreements set forth herein and for other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties do hereby
agree as follows:

     1. Definitions. Capitalized terms used herein without definition shall have
the meanings set forth in the Existing Operating Agreement.

                                        2

<PAGE>

     2. Additional Capital Contributions.

     (a) Additional Capital Contributions by GGPLP.

          (i) Concurrently herewith, GGPLP shall contribute to the capital of
     the Company all of the right, title and interest of GGPLP under the
     Contribution and Sale Agreement that relates to the acquisition of the
     Membership Interests of the Selling Members, and the Company shall assume
     all of the obligations of GGPLP under the Contribution and Sale Agreement
     that relate to the acquisition of the Membership Interests of the Selling
     Members (including without limitation the obligation to pay the entire
     earnest money deposit due thereunder), pursuant to an Assignment and
     Assumption Agreement substantially in the form attached hereto as Exhibit
     A. The Company may further assign the right to acquire all or a portion of
     such Membership Interests to one or more wholly-owned Subsidiaries
     (including GGP-Natick Trust, which is treated as wholly-owned), and, upon
     any assignment to any such Subsidiary of the right to acquire all or a
     portion of such Membership Interests, such Subsidiary shall assume the
     liabilities of the Company under the Contribution and Sale Agreement that
     relate thereto. In addition, the parties acknowledge that Glendale LLC may
     make a distribution of a portion of the proceeds of the New Mortgage Loan
     at Closing, and GGPLP (as the holder of the JSG Membership Interest) hereby
     directs that its share of any such distribution be paid to the Company (and
     GGPLP shall be deemed to have made a capital contribution to the Company of
     such amount).

          (ii) Immediately following the Closing, GGPLP shall contribute to the
     capital of the Company all of the right, title and interest of GGPLP in and
     to the JSG Membership Interest pursuant to an Assignment of Membership
     Interest in substantially the form attached hereto as Exhibit B (the
     capital contribution described in this paragraph, the "JSG Membership
     Interest Contribution"). Except as provided in Sections 2(a)(iv) and 5
     hereof, (A) GGPLP shall retain all of the right, title and interest of
     GGPLP under the Contribution and Sale Agreement that relates to the
     acquisition of the JSG Membership Interest and all right, title and
     interest of GGPLP under the Series C Preferred Units Documents and the JSG
     Pledge Agreement and (B) the Company is not assuming and shall not be
     required to assume any obligations of GGPLP under the Contribution and Sale
     Agreement that relate to the acquisition of the JSG Membership Interest or
     any obligations of GGPLP under the JSG Pledge Agreement or the Series C
     Preferred Units Documents.

          (iii) No additional Units shall be issued to GGPLP on account of the
     Capital Contributions referred to in this Section 2. Subject to adjustment
     in accordance with Section 2(a)(iv) hereof, the Capital Account of GGPLP
     shall be increased on account of the Capital Contributions referred to in
     Sections 2(a)(i) and (ii) hereof by an amount equal to the

                                        3

<PAGE>

     aggregate base liquidation preference of the Series C Preferred Units
     issued by GGPLP pursuant to the Contribution and Sale Agreement.

          (iv) Upon receipt by GGPLP of any cash amount from JSG under the
     Contribution and Sale Agreement or the JSG Pledge Agreement following
     Closing (other than any amount arising from a Series C Preferred Units
     Matter, as defined below), GGPLP promptly shall pay such amount to the
     Company (and such payment shall not increase the Capital Account of GGPLP).
     Upon the surrender by JSG from time to time of any Series C Preferred Units
     in satisfaction of any amount owing by JSG to GGPLP pursuant to the
     Contribution and Sale Agreement or the JSG Pledge Agreement (other than any
     amount arising from a Series C Preferred Units Matter), the Capital Account
     of GGPLP shall be reduced by an amount equal to the aggregate base
     liquidation preference of such Series C Preferred Units. In the event that
     GGPLP is required to pay any amount pursuant to the Contribution and Sale
     Agreement following Closing (other than any amount arising from a Series C
     Preferred Units Matter), the Company promptly shall reimburse GGPLP
     therefor (and the Capital Account of GGPLP shall not be reduced on account
     thereof). For purposes hereof, a "Series C Preferred Units Matter" shall
     mean (A) any right or obligation under the Contribution and Sale Agreement
     that arises solely because the consideration for the JSG Membership
     Interest consists of Series C Preferred Units rather than cash and (B) any
     right or obligation under the Series C Preferred Units Documents.

          (v) GGPLP promptly shall provide to NYSCRF such documents and
     information as NYSCRF shall reasonably request in order to verify the
     amount of the aggregate base liquidation preference referred to above and
     any adjustments thereto.

     (b) Additional Capital Contribution by NYSCRF.

          (i) Subject to the occurrence of the Closing, NYSCRF shall contribute
     to the capital of the Company cash in an amount equal to the aggregate base
     liquidation preference of the Series C Preferred Units issued by GGPLP
     pursuant to the Contribution and Sale Agreement (the "NYSCRF Contribution
     Amount"), together with interest on the outstanding balance thereof at a
     rate per annum equal to 7% (compounded quarterly), on or before the
     earliest to occur of (A) the dissolution of the Company, (B) the sale of
     all or substantially all of the assets of the Company and/or its
     Subsidiaries and (C) the Transfer by NYSCRF of all or any part of its Units
     to GGPLP (or any assignee thereof), the Company or any other Person (and
     the payment of the unpaid NYSCRF Contribution Amount and all accrued and
     unpaid interest thereon shall be a condition to any such Transfer). In
     addition, NYSCRF shall pay accrued and unpaid interest on the NYSCRF
     Contribution Amount to the extent of any distributions paid to NYSCRF by
     the Company (other than distributions

                                        4

<PAGE>

     that are applied to the payment of the NYSCRF Existing Loans), and, if
     directed by NYSCRF in writing, the Company shall withhold such
     distributions and apply them to the payment of the principal amount of the
     NYSCRF Contribution Amount and/or accrued and unpaid interest thereon.
     Notwithstanding the foregoing, the NYSCRF Contribution Amount shall be
     reduced by the amount of any reduction in the Capital Account of GGPLP
     pursuant to Section 2(a)(iv) hereof.

          (ii) Payments with respect to this Section 2(b) shall be applied first
     against accrued and unpaid interest, if any, and then against principal.

          (iii) NYSCRF may, at any time and from time to time and without
     premium or penalty, prepay all or a portion of the NYSCRF Contribution
     Amount.

          (iv) NYSCRF waives its right to any setoff or reduction with respect
     to its obligation to pay the amounts to be paid by it under this Section
     2(b) based on any claim that NYSCRF has against the Company or the other
     Members.

          (v) No additional Units shall be issued to NYSCRF on account of the
     payment of any amount pursuant to this Section 2(b). The Capital Account of
     NYSCRF shall be increased by the amount of each payment (other than
     interest) made pursuant to this Section 2(b).

          (vi) To secure payment of the obligations of NYSCRF described in this
     Section 2(b) (collectively, the "NYSCRF Contribution Obligations"), NYSCRF
     hereby grants to GGPLP a security interest in the Units owned by NYSCRF on
     the date hereof, any Units hereafter acquired by NYSCRF, any and all rights
     of NYSCRF in respect of such Units, any distributions of cash or property
     in respect of the such Units and any and all other proceeds of any of the
     foregoing (such Units and other collateral, collectively, the
     "Collateral"). The terms of Section 13.4 of the Existing Operating
     Agreement shall apply to the security interest granted herein, and, in the
     event that NYSCRF fails to pay any amount owing in respect of the NYSCRF
     Contribution Obligations, NYSCRF shall be deemed to be a Defaulting Member
     and GGPLP (or its assignee) shall be deemed to be a Non-Defaulting Member
     for purposes of such section and the other provisions of the Existing
     Operating Agreement.

          (vii) Notwithstanding anything to the contrary contained herein,
     NYSCRF shall have no personal liability for the performance of the NYSCRF
     Contribution Obligations, all such personal liability being waived by the
     parties hereto and recourse in respect of the NYSCRF Contribution
     Obligations being limited to the Collateral. The foregoing limitations on
     personal liability shall in no way impair or constitute a waiver of the
     validity of the NYSCRF Contribution Obligations, or the Liens created in
     favor of

                                        5

<PAGE>

     GGPLP pursuant hereto, or the right of GGPLP or its agent to foreclose
     and/or enforce GGPLP's rights with respect to the Collateral. Nothing
     herein shall be deemed to be a waiver of any right which GGPLP may have
     under the United States Bankruptcy Code to file a claim for the full amount
     of the NYSCRF Contribution Obligations or to require that all Collateral
     shall continue to secure all NYSCRF Contribution Obligations. The
     provisions set forth in this paragraph are not intended as a release or
     discharge of the NYSCRF Contribution Obligations, but are intended as a
     limitation, to the extent expressly provided in this paragraph, on GGPLP's
     right to sue for a deficiency or seek a personal judgment against NYSCRF
     with respect to the NYSCRF Contribution Obligations.

     3. Confirmation Relating to Certain Definitions. The parties hereto confirm
that, from and after the Closing, (a) the Glendale Property shall be a Company
Asset and a Property and (b) Glendale LLC and its subsidiaries shall be
Subsidiaries.

     4. Amendment to Exhibit E of the Existing Operating Agreement. The trade
area maps in the form attached hereto as Exhibit C are hereby added to Exhibit E
of the Existing Operating Agreement. Notwithstanding anything to the contrary
contained in the Existing Operating Agreement, as amended hereby, GGPLP and/or
its Affiliates are permitted to provide property management, leasing and/or
development services for the property or properties listed on Exhibit D,
attached hereto and by this reference made a part hereof.

     5. Other Matters Relating to Glendale Property.

          (a) The Company shall reimburse GGPLP for the costs and expenses
     incurred by GGPLP in connection with the transactions contemplated by the
     Contribution and Sale Agreement and the financing thereof, including
     without limitation the costs and expenses incurred in connection with the
     acquisition of the JSG Membership Interest and the issuance of the Series C
     Preferred Units.

          (b) Following and subject to the occurrence of the JSG Membership
     Interest Contribution, the Company shall (i) except as required to
     consummate any Exit Transaction (as defined below), perform the obligations
     of GGPLP contained in Section 2 of the Tax Matters Agreement to the extent
     that they pertain to the Company or any Subsidiary, (ii) reimburse GGPLP
     for any amount that is owing pursuant to Section 2 or 3 of the Tax Matters
     Agreement on account of any breach of such Section 2 that is caused by the
     Company or any Subsidiary thereof (other than a breach that directly
     results from the consummation of any Exit Transaction), (iii) perform the
     obligations of GGPLP contained in Section 4 of the Tax Matters Agreement to
     the extent that they pertain to the Company or any Subsidiary thereof, (iv)
     unless the Company or any Subsidiary ceases to own the Glendale Property as
     the result of any Exit Transaction or GGPLP ceases to own a direct or
     indirect interest in the Company, maintain (or, to the extent applicable,
     cause its Subsidiaries to maintain) Qualified Non-Recourse Debt (as defined
     in the Tax Matters

                                        6

<PAGE>

     Agreement) to the extent that the same is required to be maintained by
     GGPLP pursuant to Section 5 of the Tax Matters Agreement, (v) cooperate
     with GGPLP in offering Guarantee Opportunities (as defined in the Tax
     Matters Agreement) pursuant to Sections 5 and 6 of the Tax Matters
     Agreement (including without limitation by means of offering Guarantee
     Opportunities with respect to debt of the Company and/or its Subsidiaries
     to the extent that the Company and/or its Subsidiaries have debt available
     to be guaranteed that satisfies the requirements of such Sections 5 and 6),
     and (vi) reimburse GGPLP for any amount that is owing pursuant to Section 5
     or 6 of the Tax Matters Agreement on account of a failure by the Company or
     any Subsidiary thereof to comply with clause (iii), (iv) or (v) of this
     Section 5(b). Notwithstanding anything to the contrary contained in the
     Existing Operating Agreement or this Amendment, (x) the Value of a
     Property, the Dissolution Value of the Company and the Dissolution Value of
     a Property shall be determined without regard to the obligations contained
     in clauses (i) and (ii) of this paragraph, (y) the Class B Members shall
     reimburse GGPLP for an amount equal to the product of (1) the payments
     actually made by GGPLP pursuant to the Tax Matters Agreement as a direct
     result of the consummation of any Specified Exit Transaction multiplied by
     (2) a fraction, the numerator of which is the total number of Units owned
     by the Class B Members immediately prior to the consummation of such
     Specified Exit Transaction and the denominator of which is the total number
     of Units owned by all Members immediately prior to the consummation of such
     Specified Exit Transaction and (z) all or any part of the Class B Units to
     be acquired by GGPLP in any Exit Transaction may be acquired by a designee
     of GGPLP. As used herein, an "Exit Transaction" shall mean any transaction
     contemplated by Article IX, X or XI of the Existing Operating Agreement and
     a "Specified Exit Transaction" shall mean any Exit Transaction described in
     Section 9.7 of the Existing Operating Agreement, the purchase of the Units
     of GGPLP in an Exit Transaction described in Article X of the Existing
     Operating Agreement or any Exit Transaction described in Section 11.7 of
     the Existing Operating Agreement.

          (c) The Company shall indemnify, defend and hold harmless GGPLP from
     and against any and all losses, claims, damages, debts, liabilities, costs
     and expenses (including without limitation reasonable attorneys' fees),
     whether known or unknown, liquidated or unliquidated, fixed or contingent
     or direct or indirect and whether based on contract, tort, statute or other
     legal theory of recovery ("Claims"), which relate to or arise out of the
     Contribution and Sale Agreement or the transactions contemplated thereby;
     provided, however, that the indemnity contained in this paragraph shall not
     apply to a Claim to the extent that it arises out of (i) the gross
     negligence or intentional misconduct of GGPLP, (ii) any action or omission
     of GGPLP or the General Growth Officers in connection with the management
     of the Company (for which indemnity is provided, if at all, by Section 7.13
     of the Existing Operating Agreement and Section 10 of Schedule II, Part 2,
     of the Existing Operating Agreement) or (iii) any Series C Preferred Units
     Matter.

                                        7

<PAGE>

          (d) The pro forma for the Glendale Property operations that was
     previously delivered to the Members be, and it hereby is, approved as the
     Annual Business Plan for the Glendale Property for the remainder of 2002
     (and no further approval thereof by the Board shall be required).

          (e) Notwithstanding anything to the contrary contained in the Existing
     Operating Agreement, as amended hereby, (i) the Company shall engage a
     leasing agent (other than GGPLP or an Affiliate thereof) selected by the
     General Growth Officers (and, if other than Grubb & Ellis, approved by the
     Class B Directors, whose approval may not be unreasonably withheld) to
     provide leasing services for the office building portion of the Glendale
     Property upon such terms as the General Growth Officers deem to be
     appropriate, (ii) the Company shall pay the fees and other compensation
     thereof (but the fees and other compensation must be consistent with the
     applicable Annual Business Plan or otherwise be permitted under Section
     7.7(c) or Section 7.7(d)(iv) of the Existing Operating Agreement) and (iii)
     GGPLP and its Affiliates shall not be required to provide such services or
     be entitled to receive any fees pursuant to Section 2 of Schedule IV to the
     Existing Operating Agreement on account thereof.

     6. Counterparts. This Amendment may be executed in counterparts, each of
which shall constitute an original and all which together shall constitute the
same agreement.

     7. Captions. The article and section headings appearing in this Amendment
are for convenience of reference only and are not intended, to any extent and
for any purpose, to limit or define the text of any section or any subsection
hereof.

     8. Full Force and Effect; Etc. Except as expressly set forth herein, this
Amendment does not constitute a waiver or modification of any provision of the
Existing Operating Agreement. Except as expressly amended hereby, the Existing
Operating Agreement shall continue in full force and effect in accordance with
the provisions thereof on the date hereof. As used in the Existing Operating
Agreement (including without limitation the Exhibits and Schedules thereto), the
terms "the Agreement," "herein," "hereof," "hereinafter," "hereto" and words of
similar import, shall, unless the context otherwise requires, mean the Existing
Operating Agreement, as amended by this Amendment.

                                        8

<PAGE>

     IN WITNESS WHEREOF, the parties hereto have duly executed this Amendment on
the date first written above.

                                        GGP LIMITED PARTNERSHIP, a Delaware
                                        limited partnership

                                        By: General Growth Properties, Inc.,
                                            a Delaware corporation, its general
                                            partner

                                        By: /s/ Bernard Freibaum
                                            ------------------------------------
                                            Bernard Freibaum, Executive Vice
                                            President

                                        THE COMPTROLLER OF THE STATE OF NEW YORK
                                        AS TRUSTEE OF THE COMMON RETIREMENT FUND

                                        By: /s/ Bruce E. Feig
                                            ------------------------------------
                                        Name: Bruce E. Feig
                                        Title: First Deputy Comptroller

                                        GGP/HOMART II L.L.C., a Delaware limited
                                        liability company

                                        By: /s/ Bernard Freibaum
                                            ------------------------------------
                                            Bernard Freibaum, Executive Vice
                                            President

                                        9<PAGE>

                                                                   EXHIBIT 10.22

                             GGP LIMITED PARTNERSHIP
                             110 North Wacker Drive
                             Chicago, Illinois 60606

                                January 31, 2003

Comptroller of the State of New York
as Trustee of the Common Retirement Fund
633 Third Avenue
31st Floor
New York, NY 10017-6754

Ladies and Gentlemen:

     Reference is made to (a) that certain Operating Agreement dated as of
November 10, 1999, among GGP/Homart II L.L.C., a Delaware limited liability
company (the "Company"), The Comptroller of the State of New York as Trustee of
the Common Retirement Fund, a fund established pursuant to NY Retirement and
Social Security Law Section 422, in the custody of the Comptroller of the State
of New York ("NYSCRF"), and GGP Limited Partnership, a Delaware limited
partnership ("GGPLP" and, together with NYSCRF, the "Members"), as amended (the
"Operating Agreement"), and (b) that certain Unanimous Written Consent of the
Board of Directors relating to the acquisition of First Colony Mall in Sugar
Land, Texas and certain related property (the "First Colony Property").
Capitalized terms used herein without definition shall have the meaning set
forth in the Operating Agreement.

     1. Matters Relating to Trade Area for First Colony Property. The trade area
map for the First Colony Property in the form attached hereto as Exhibit A is
hereby added to Exhibit E of the Operating Agreement.

     2. Matters Relating to Annual Business Plan for First Colony Property.
Notwithstanding anything to the contrary contained in the Operating Agreement,
the General Growth Officers shall submit a proposed 2003 budget for the First
Colony Property on or before the later of March 31, 2003 and the sixtieth day
following the closing of the acquisition thereof (instead of the earlier date,
if any, specified in the Operating Agreement). Until the budget for the First
Colony Property is approved by the Board, the General Growth Officers shall
operate the First Colony Property in accordance with the provisions of the
Operating Agreement that are applicable when there is no approved Annual
Business Plan for a Property. Once approved by the Board, such budget shall be
deemed to be the 2003 Annual Business Plan for the First Colony Property.

<PAGE>

Comptroller of the State of
New York as Trustee
of the Common Retirement Fund
January 31, 2003
Page 2

     3. Matters Relating to Annual Business Plan for Glendale Property.
Notwithstanding anything to the contrary contained in the Operating Agreement,
the General Growth Officers shall submit a proposed 2003 budget for the Glendale
Property on or before March 31, 2003 (instead of the earlier date, if any,
specified in the Operating Agreement). Until the budget for the Glendale
Property is approved by the Board, the General Growth Officers shall operate the
Glendale Property in accordance with the provisions of the Operating Agreement
that are applicable when there is no approved Annual Business Plan for a
Property. Once approved by the Board, such budget shall be deemed to be the 2003
Annual Business Plan for the Glendale Property.

     Except as expressly provided herein, the Operating Agreement shall remain
in full force and effect.

     Please indicate your agreement with the foregoing by signing and returning
the enclosed counterpart of this letter to the undersigned.

                                        Very truly yours,

                                        GGP LIMITED PARTNERSHIP,
                                        a Delaware limited partnership

                                        By: General Growth Properties, Inc.,
                                            a Delaware corporation,
                                            its general partner

                                        By: /s/ Joel Bayer
                                            ------------------------------------
                                        Name: Joel Bayer
                                        Title: Senior Vice President

ACCEPTED AND AGREED TO AS OF THE
DATE ABOVE WRITTEN:

ALAN G. HEVESI, COMPTROLLER OF THE
STATE OF NEW YORK,
as trustee of the Common Retirement
Fund

By: /s/ Jacques Jiha
    ---------------------------------
Name: Jacques Jiha
Title: Deputy Comptroller for Pension
       Investment and Public Finance

<PAGE>

Comptroller of the State of
New York as Trustee
of the Common Retirement Fund
January 31, 2003
Page 3

GGP/HOMART II L.L.C,
a Delaware limited liability company

By: /s/ Joel Bayer
    ---------------------------------
Name: Joel Bayer
Title: Senior Vice President

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