Document:

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                                  EXHIBIT 10.15

                                  AMENDMENT ONE
                                     TO THE
                   SOFTWARE LICENSE AND DISTRIBUTION AGREEMENT
                              FOR EMBEDDED PRODUCTS
                                     BETWEEN
                                     SAP AG
                                       AND
                            BACKWEB TECHNOLOGIES LTD.

This document ("Amendment One") amends the Software License and Distribution
Agreement between SAP AG. ("SAP") and BackWeb Technologies Ltd. ("BackWeb")
dated March 17, 1999 and all amendments and addenda thereto (the "Agreement").

The parties hereby agree to amend the Agreement as follows:

1.      Delete Section 1.7, restate it in its entirety as follows:

        ""Not for Distribution Use" or "NDR" shall mean use of the Software
        Products for SAP or Applicable Entities including Consulting Partners of
        SAP or Applicable Entities, for demonstrations to prospects and internal
        personnel of such entities and use of the Software Products embedded in
        the SAP Software for SAP or Applicable Entities for restricted trials by
        such prospects, such trials shall be restricted to non-productive use
        and not to exceed 180 days."

2.      In Section 5.3, add the following new paragraph at the end of such
        Section:

        "BackWeb is informed by SAP that SAP intends to adopt a new or
        alternative licensing model under which SAP will license its customers
        to use the entire suite of SAP's products or modules for the applicable
        licensed users. Under such license model, it is projected that only a
        certain percentage of a licensee's licensed users will use the SAP
        Software, but SAP will not limit usage of the SAP Software. In the event
        that SAP uses such a license model for a customer, SAP shall use its
        best efforts to determine (i) the initial actual number of Mobile Named
        Users or (ii) a reasonable estimation of the number of Mobile Named
        Users who will be using the SAP Software within two years from starting
        with productive usage of the SAP Software. SAP shall report such actual
        and estimated number of Mobile Named Users as set forth in this Section.
        Fees shall be due and payable to BackWeb based on the actual or
        estimated number of Mobile Named Users. For the avoidance of doubt,
        BackWeb and SAP agree that a mobile sales and/or a mobile service user
        is to be counted only as one (1) Mobile Named User. Thereafter, SAP
        shall review the deployment or usage of the SAP Software with each such
        licensee every twelve months after two years from starting with
        productive usage. SAP shall adopt usage, tracking, and monitoring
        procedures to ensure accurate measurement of actual or deployed Mobile
        Named Users. SAP shall also report to BackWeb any recognized increase in
        the number of actual or deployed Mobile Named Users from the number of
        Mobile Named Users previously reported to BackWeb. SAP shall be
        obligated to pay additional fees as specified in this Agreement based on
        the increased numbers of Mobile Named Users reported to BackWeb. The
        parties agree to discuss in good faith the terms of this paragraph every
        six (6) months."

Subject to the modifications herein, the Agreement shall remain in full force
and effect.

The Effective Date of this Amendment One is 9 June, 2000.

SAP AG                                   BACKWEB TECHNOLOGIES LTD.

By:     /s/ Henning Kagermann            By:    /s/ Gwen Spertell
    --------------------------------        ------------------------------------

Name:   Prof. Dr. Henning Kagermann         Name:  Gwen Spertell
     -------------------------------             -------------------------------

Title:  Co-Chairman and CEO                 Title: SVP
      ------------------------------              ------------------------------
<PAGE>   2

By:     /s/ Karl-Heinz Hess
    --------------------------------

Name:   Karl-Heinz Hess
     -------------------------------

Title:  Extended Executive Board
      ------------------------------<PAGE>   1

                                                                    EXHIBIT 10.1

                              THIRTEENTH AMENDMENT
                                       TO
                    CONVERTIBLE DEBENTURE PURCHASE AGREEMENT

        THIS THIRTEENTH AMENDMENT TO CONVERTIBLE DEBENTURE PURCHASE AGREEMENT
(the "Amendment") is entered into as of June 30, 2000, by and between DISC,
Inc., a California corporation (the "Company"), and MK GVD Fund (the
"Purchaser").

                                R E C I T A L S:

        A. WHEREAS on March 29, 1996 the Company and Purchaser entered into a
Convertible Debenture Purchase Agreement pursuant to which the Company agreed to
sell, and Purchaser agreed to purchase, an aggregate of $1,400,000 in principal
amount of Convertible Debentures, each convertible into shares of the Company's
Preferred Stock, which Agreement was amended as of December 31, 1996, April 11,
1997, December 31, 1997, March 27, 1998, June 30, 1998 and September 25, 1998,
December 31, 1998, March 30, 1999, June 30, 1999, September 30, 1999, December
31, 1999 and March 31, 2000 to increase the aggregate amount of Convertible
Debenture to be purchased thereunder to $9,430,000.

        B. The Company and Purchaser now seek to amend the Agreement to increase
the total amount of Convertible Debentures which Purchaser agrees to purchase
thereunder.

        NOW, THEREFORE, for good and valuable consideration, receipt of which is
hereby acknowledged, and in consideration of the mutual covenants set forth
herein, the parties hereto agree as follows:

        1. DEFINITIONS. Unless otherwise defined herein, capitalized terms used
in the Amendment shall have the same meanings ascribed to them in the
Convertible Debenture Purchase Agreement.

        2. AMENDMENT TO CONVERTIBLE DEBENTURE PURCHASE AGREEMENT. Section 1.1(a)
of the Convertible Debenture Purchase Agreement is hereby amended to provide
that Purchaser agrees to purchase, and the Company agrees to issue and sell, an
aggregate of $10,530,000 in principal amount of Convertible Debentures.

        3. ENTIRE AGREEMENT; AMENDMENT. The Convertible Debenture Purchase
Agreement, as amended by this Amendment, constitutes the full and complete
agreement and understanding between the parties hereto regarding the subject
matter of the Convertible Debenture Purchase Agreement and shall supersede all
prior communications, representations, understandings or agreements, if any,
whether oral or written, concerning the subject matter contained in the
Convertible Debenture Purchase Agreement, as so amended, and that no provision
of the Convertible Debenture Purchase Agreement, as so amended, may be modified,
amended, waived or discharged, in whole or in part, except in accordance with
its terms.

        4. FORCE AND EFFECT. Except as modified by this Amendment, the terms and
provisions of the Convertible Debenture Purchase Agreement are hereby ratified
and confirmed and are and shall remain in full force and effect. Should any
inconsistency arise between this Amendment and the Convertible Debenture
Purchase Agreement as to the specific matters which are the subject of this
Amendment, the terms and conditions of this Amendment shall control. This
Amendment shall be construed to be part of the Convertible Debenture Purchase
Agreement and shall be deemed incorporated into the Convertible Debenture
Purchase Agreement by this reference.

        5. COUNTERPARTS. This Amendment may be executed in one or more
counterparts, each of which shall be an original but all of which together shall
constitute one instrument.

<PAGE>   2

        IN WITNESS WHEREOF, the Company has caused this Amendment to be executed
in duplicate on its behalf by its duly authorized officer and Purchaser has also
executed this Amendment in duplicate, all as of the day and year indicated
above.

                                        DISC, INC.
                                        a California corporation

                                        By: /s/ Henry Madrid
                                            -----------------------------------
                                                Henry Madrid
                                                Chief Financial Officer

                                        PURCHASER:

                                        MK GVD Fund

                                        By: /s/ Michael D. Kaufman
                                            -----------------------------------
                                            Michael D. Kaufman, General PartnerEXHIBIT 10.1
------------

                         PARTNERSHIP INTEREST
                          PURCHASE AGREEMENT
                         --------------------
                  (Westdale Mall; Cedar Rapids, Iowa)

     THIS AGREEMENT made and entered into as of the ______ day of July,
2000, by and between JMB INCOME PROPERTIES, LTD.-VII, an Illinois limited
partnership ("Seller"), and ROUSE-WESTDALE, LLC, a Maryland limited
liability company ("Buyer").

                       WITNESSETH, THAT WHEREAS:

     A.    Seller and H-N-W Associates, an Iowa limited partnership
("HNW"), which is an entity affiliated with Buyer, constitute the sole
partners in WESTDALE ASSOCIATES (the "Partnership"), an Illinois general
partnership formed and existing pursuant to that certain partnership
agreement described on Exhibit "A" attached hereto and made a part hereof
(the agreement and amendments so described, together with all other
amendments or modifications entered into prior hereto, being herein
collectively called the "Partnership Agreement").  Except as otherwise set
forth herein, all terms used in a defined manner herein shall have the
meanings set forth for such terms in the Partnership Agreement.

     B.    Seller desires to sell, and Buyer desires to purchase, all of
Seller's interest in the Partnership in the manner hereinafter set forth.

     NOW, THEREFORE, in consideration of the premises and the respective
undertakings of the parties hereinafter set forth, it is hereby agreed as
follows:

  1. SALE OF PARTNERSHIP INTEREST.

     A.    For the purchase price and on the terms and conditions
hereinafter set forth, Seller shall sell to Buyer, and Buyer shall purchase
from Seller, the interest of Seller in the Partnership, as such interest is
described in the Partnership Agreement, and any and all interests of Seller
in and to the "Business Property" (as defined in the Partnership
Agreement), the interests to be conveyed hereunder including, but not being
limited to, Seller's interest in the following:

           (1)   capital, profits and losses and liabilities of the
Partnership (excluding, however, except as otherwise provided herein, any
capital, profits, losses, liabilities, distributions or other sums or
proceeds which may have accrued in favor of Seller under the Partnership
Agreement prior to the "Closing Date", as such term is hereinafter defined;
and

           (2)   property of the Partnership (whether tangible or
intangible), including any personal property, building and trade names,
plans, specifications, licenses, permits and development rights of the
Partnership.

The Partnership interest to be purchased by Buyer as aforesaid is herein
called the "Acquired Partnership Interest".  The Acquired Partnership
Interest shall be acquired by Buyer subject to all of the obligations and
liabilities of the Partnership, including, without limitation, the
"Existing Loan" (as defined in Exhibit "A" attached hereto and made a part
hereof).

<PAGE>

     B.    The purchase price (the "Purchase Price") for the Acquired
Partnership Interest will be $2,000,000, which amount shall be adjusted by
the "Proration Amount" (as such term is hereinafter defined).

     C.    "Proration Amount", as used herein, means the net amount of the
credit (or debit) to Seller as a result of the prorations provided for in
Paragraph 2B below.

  2. CLOSING CONFERENCE.  The closing ("Closing") of the purchase and sale
of the Acquired Partnership Interest shall be consummated on the Closing
Date either through appropriate escrow procedures reasonably acceptable to
the parties or through a closing conference which shall be held at such
place as the parties shall reasonably agree upon.  As used herein, the
"Closing Date" means an effective date as of July 31, 2000, or such earlier
or later date as shall be hereafter agreed upon by the parties hereto for
the sale herein provided.

     A.    Delivery of Documents.  At Closing, the following deliveries
shall be made:

           (1)   Delivery by Seller.  Seller shall deliver or cause to be
delivered to Buyer the following items:

                 (a)  Assignment of Partnership Interest.  An assignment
of the Acquired Partnership Interest in favor of Buyer, duly executed by
Seller, in the form of Exhibit "B", hereunto annexed and made a part
hereof.

                 (b)  Evidence of Authority.  Evidence reasonably
satisfactory to Buyer respecting the due organization of Seller and the due
authorization and execution of this Agreement and the documents required to
be delivered hereunder and made a part hereof.

                 (c)  Other Documents.  Originals of (or, to the extent
not readily available, copies of) all material contracts, agreements and
documents (the "Material Documents"), including, but not limited to, title
policies and tenant leases, which are in Seller's possession and relate to
the Business Property; provided, however, that Seller shall not be
obligated to deliver any Material Documents to Buyer which are in the
possession of Buyer (or in the possession of any affiliated or related
entity), including, but not limited to Material Documents which are in the
possession of Buyer in connection with "Manager's" rights, duties and
obligations as the manager under the "Management Agreement" (as such terms
are hereinafter defined).

           (2)   Delivery by Buyer.  Buyer shall deliver or cause to be
delivered to Seller the following items:

                 (a)  Closing Payment.  The Closing Payment amount shall
be paid to Seller by wire transfer of immediately available federal funds
on the Closing Date.

                 (b)  Evidence of Authority.  Evidence reasonably
satisfactory to Seller respecting the due organization of Buyer and the due
authorization and execution of this Agreement and the documents required to
be delivered hereunder.

     B.    Calculations of Proration Amount.  The Proration Amount shall
be determined on the basis of a written statement or statements prepared
and approved by Buyer and Seller prior to the Closing Conference.  Buyer
and Seller shall determine the manner in which the Proration Amount is to
be calculated in a fair, equitable and reasonable manner.  Seller and Buyer
shall cooperate with each other in good faith in connection with the
determinations and computations required hereunder.  The "Proration Amount"
will be equal to the "Net Current Assets", which, as used herein, means the

<PAGE>

difference between (i) the "Current Assets" (as hereinafter defined) and
(ii) the "Current Liabilities" (as hereinafter defined).  The Purchase
Price will be increased by an amount equal to 64.7% of any positive balance
of Net Current Assets and the Purchase Price will be reduced by an amount
equal to 64.7% of any negative balance of Net Current Assets.  Net Current
Assets will be determined by reference to the Partnership's accrual basis
financial statements prepared in accordance with generally accepted
accounting principles, which the modifications described in this paragraph,
however, in all events consistent with Exhibit "C" attached hereto.  The
term "Current Assets" shall mean the following assets of the Partnership as
of the Closing Date, all as more particularly set forth on Exhibit "C":
(a) cash and cash equivalents, including, but not limited to, funds held in
any real estate tax, insurance or other impound account, and the funds held
in any security deposit account, if any, each administered by the Existing
Lender or its agents; (b) accounts receivable, net of any reserve for
receivables deemed reasonably uncollectible by the parties; and (c) prepaid
expenses.  The term "Current Liabilities" shall mean, as of the Closing
Date, all of the Partnership's liabilities, all as more particularly set
forth on Exhibit "C": (w) accounts payable and prepaid rent; (x) accrued
but unpaid expenses (other than accrued real estate taxes); (y) security
deposits; and (z) accrued but unpaid real estate taxes for the tax years on
and before the Closing Date.  The Proration Amount shall be estimated by
the parties no less than three (3) days prior to the Closing Conference and
the final Proration Amount will be determined at the Closing Conference.

     C.    Concurrent Deliveries.  All payments of money and deliveries of
items required to be made by any party under this Agreement or under any
agreement herein provided shall be made concurrently with each such payment
or delivery hereunder or thereunder, and the obligations contained herein
shall be conditional upon such concurrent payments or deliveries.  The
foregoing deliveries may be made pursuant to escrow instructions in form
reasonably acceptable to the parties hereto in order to effectuate the
intent hereof.

     D.    Closing Costs.  Subject to the brokerage provisions of
paragraph 8 below, Buyer shall pay all closing costs in connection with the
transactions contemplated in this Agreement, including all documentary,
filing, recording, conveyance, transfer, intangible and other taxes, if
any, recording or filing charges for any instruments or documents which may
be recorded or filed, if any, all title, survey or escrow fees, all fees,
costs or expenses, if any, which may be imposed in connection with the
Existing Loan.  Each party shall pay its own attorneys' fees in connection
with preparing and negotiating this Agreement.

  3. PROFITS AND LOSSES OF THE PARTNERSHIP PRIOR TO CLOSING; TAX RETURNS.
Profits and losses of the Partnership for the period from January 1, 2000
through the Closing Date shall be allocated pursuant to the applicable
provisions of the Partnership Agreement.  Buyer and Seller will cooperate
with each other in providing and preparing such information and items as
may be required in order to timely prepare and deliver tax returns and
other similar items after the Closing Date.  In connection with the
foregoing, after the Closing Date Buyer shall continue to provide JMB
Realty Corporation ("JMB"), the corporate general partner of Seller, full
access on behalf of the Seller to all books and records of the Partnership
and to all other financial information as may be reasonably required in
connection with such determinations, such access being during normal
business hours and following reasonable advance notice.

  4. REPRESENTATIONS AND WARRANTIES.

     A.    Representations and Warranties of Seller.  Seller hereby
represents and warrants to Buyer as follows:

<PAGE>

           (1)   Except as set forth in subparagraphs A(2) through A(9)
below, the sale of the Acquired Partnership Interest is and will be made on
an "as is" basis, without representations and warranties of any kind or
nature,  express, implied, or otherwise, including, but not limited to, any
representation or warranty concerning the title to or physical or financial
condition of the Business Property or as to any fitness of purpose,
merchantability or habitability with respect to the Business Property or of
any income, expenses, charges, liens or encumbrances, rights or claims on,
affecting or pertaining to the Business Property or any part thereof.
Buyer acknowledges that Buyer is affiliated with HNW, which is a partner in
the Partnership and is also the fee owner and ground lessor under the
ground lease between HNW and the Partnership with respect to the Business
Property, and is also affiliated with Rouse Property Management, Inc., a
Maryland corporation ("Manager"), the manager of the Business Property
pursuant to a management agreement between the Partnership and Manager
(which agreement, together any and all amendments entered into prior
hereto, is collectively called the "Management Agreement").  Buyer
acknowledges that, except as to matters specifically set forth in
subparagraphs A(2) through A(9) below, Buyer will acquire the Acquired
Partnership Interest solely on the basis of (a) its own physical and
financial examination of the Business Property and (b) information and
knowledge in its possession and in the possession of HNW and Manager.  As a
result of the foregoing, Buyer is not relying upon, and has no need to rely
upon, any knowledge or information in the possession of Seller with respect
to any of the foregoing matters except as set forth herein.  Without
limitation thereon, Buyer acknowledges the Partnership is a borrower under
the Existing Loan and that the Acquired Partnership Interest is being
purchased by Buyer subject to all of Seller's (and the Partnership's)
obligations thereunder.

           (2)   Seller is a partnership, duly organized and validly
existing under the laws of the State of Illinois.

           (3)   Seller is duly authorized, qualified and licensed under
any and all applicable laws, regulations, ordinances and orders to do all
things required of it, under and in connection with this Agreement.

           (4)   Seller has the right, power and authority to enter into
and perform the terms of this Agreement and to consummate the transactions
contemplated hereby.

           (5)   This Agreement and all agreements, instruments and
documents herein provided to be executed or to be caused to be executed by
Seller are (or, in the case of agreements, instruments and documents
executed as of the Closing Date, will be as of the Closing Date) duly
authorized, executed and delivered by, and binding upon, Seller.

           (6)   Seller owns the Acquired Partnership Interest, free and
clear of any and all security interests, rights, options, claims and
demands (other than any security interests, rights and options granted to
HNW under the Partnership Agreement).

           (7)   Seller has not incurred any debt or contracted any
obligation or incurred any liability in the name of the Partnership (or
otherwise in its capacity as a partner) for which the Partnership may or
would be liable other than such debts, obligations or liabilities as are
disclosed in the Partnership's books or of which Buyer has been advised,
has consented to or otherwise has knowledge.

           (8)   Seller has no knowledge of any litigation or any actual
knowledge of any investigation pending against Seller or, to Seller's
actual knowledge, against the Partnership which might result in any adverse
material charge to Seller or to the Partnership.

           (9)   Seller is not aware of anything that would make it
believe that any of the representations and warranties of Buyer contained
in this Agreement are not accurate or truthful.

<PAGE>

     B.    Representations and Warranties of Buyer.  Buyer hereby
represents and warrants to Seller as follows:

           (1)   Buyer is a limited liability company, duly organized and
validly existing under the laws of the State of Maryland.

           (2)   Buyer is duly authorized, qualified and licensed under
any and all applicable laws, regulations, ordinances and orders to do all
things required of it, under or in connection with this Agreement.

           (3)   Buyer has the right, power and authority to enter into
and perform the terms of this Agreement and to consummate the transactions
contemplated hereby.

           (4)   This Agreement and all agreements, instruments and
documents herein provided to be executed or to be caused to be executed by
Buyer is (or, in the case of agreements, instruments and documents executed
as of the Closing Date, will be as of the Closing Date) duly authorized,
executed and delivered by, and binding upon, Buyer.

           (5)   The interest of HNW in the Partnership, as such interest
is described in the Partnership Agreement, is owned by HNW free and clear
of any and all security interests, rights, options, claims and demands
(other than any security interests, rights and options granted to Seller
under the Partnership Agreement) of any person claiming by, through or
under HNW.  HNW has waived any right of first refusal or other right to
acquire or consent to the transactions contemplated in this Agreement.

           (6)   Buyer is not aware of anything that would make it believe
that any of the representations and warranties of Seller contained in this
Agreement are not accurate or truthful.

  5. ADDITIONAL CONDITIONS.

     A.    Additional Conditions to Buyer's Obligations.  In addition to
the conditions provided in other provisions of this Agreement, Buyer's
obligations hereunder are conditioned on the following:

           (1)   Performance by Seller.  The due performance by Seller of
each and every undertaking and agreement to be performed by it hereunder
(including, but not limited to, the delivery of the items specified in
paragraph 2 hereof) and the truth of each representation and warranty made
in this Agreement by Seller at the time as of which the same is made and as
of the Closing Date as if made on and as of the Closing Date.

           (2)   Absence of Seller Bankruptcy/Dissolution Event.  That at
no time on or before the Closing Date shall any of the following ("Seller
Bankruptcy/Dissolution Event") have been done by, against or with respect
to Seller or any partner in Seller:  (a) the commencement of a case under
Title 11 of the U.S. Code, as now constituted or hereafter amended, or
under any other appointment of a trustee or receiver of any property
interest, (b) the appointment of a trustee or receiver of any property
interests, (c) an assignment for the benefit of creditors, (d) an
attachment, execution or other judicial seizure of a substantial property
interest, (e) the taking of, failure to take or submission to any action
indicating (after reasonable investigation) an inability to meet its
financial obligations as they accrue, or (f) a dissolution.

     B.    Additional Conditions to Seller's Obligations.  In addition to
the conditions provided in other provisions of this Agreement, Seller's
obligations hereunder are conditioned on the following:

           (1)   Performance by Buyer.  The due performance by the Buyer
of each and every undertaking and agreement to be performed by it
(including, but not limited to, the delivery of the items specified in
paragraph 2 hereof) and the truth of each representation and warranty made
in this Agreement by Buyer at the time as of which the same is made and as
of the Closing Date as if made on and as of the Closing Date.

<PAGE>

           (2)   Absence of Buyer Bankruptcy/Dissolution Event.  That at
no time on or before the Closing Date shall any of the following ("Buyer
Bankruptcy/Dissolution Event") have been done by, against or with respect
to Buyer (or any partner in Buyer):  (a) the commencement of a case under
Title 11 of the U.S. Code, as now constituted or hereafter amended, or
under any other applicable federal or state bankruptcy law or other similar
law, (b) the appointment of a trustee or receiver of any property
interests, (c) an assignment for the benefit of creditors, (d) an
attachment, execution or other judicial seizure of a substantial property
interest, (e) the taking of, failure to take or submission to any action
indicating (after reasonable investigation) an inability to meet his or its
financial obligations as they accrue, or (f) a dissolution.

     C.    Outside Date.  In the event that for any reason the sale and
purchase herein provided shall not be consummated on or before August 31,
2000, then any party may at any time thereafter, by written notice to the
other parties, terminate this Agreement and the obligations of the parties
hereunder; provided, however, that such termination shall not release any
party from liability for breach of this Agreement.  Time is of the essence
with respect to the provisions of this paragraph 5D.

  6. INDEMNIFICATION.

     A.    Indemnification by Buyer.  Buyer shall hold harmless, indemnify
and defend Seller from and against (1) all claims, rights, demands,
obligations, liabilities, costs and expenses (including reasonable
attorneys' fees) of any kind or nature arising or accruing at any time with
respect to the period on or after the Closing Date and related to the
Business Property, the Partnership, the Partnership Agreement, the Existing
Loan or any of the "Collateral Agreements" (and Buyer hereby releases
Seller from all such matters) and (2) any actual third party out of pocket
loss or damage to Seller resulting from any material inaccuracy in or
material breach of any representation and warranty of Buyer under this
Agreement (or any agreement executed in connection herewith) or resulting
from any material breach or default by Buyer under this Agreement (or any
agreement executed in connection herewith).

     B.    Indemnification by Seller.  Seller shall hold harmless,
indemnify and defend Buyer from and against any actual third party out of
pocket loss or damage to Buyer resulting from any material inaccuracy in or
material breach of any representation and warranty of Seller under this
Agreement (or any agreement executed in connection herewith) or resulting
from any material breach or default by Seller under this Agreement (or any
agreement executed in connection herewith).

     C.    General Indemnity Provisions.  Each indemnity provided for
under this Agreement shall be subject to the following provisions:

           (1)   Without limitation on the items for which a party shall
be indemnified hereunder, the indemnity shall cover the costs and expenses
of the indemnities, including reasonable attorneys' fees, related to any
actions, suits or judgments incident to any of the matters covered by such
indemnity.

           (2)   The indemnitee shall notify the indemnitor of any claim
against the indemnitee covered by the indemnity within 30 days after it has
notice of such claim, but failure to notify the indemnitor shall in no case
prejudice the rights of the indemnitee under this Agreement unless the
indemnitor shall be prejudiced by such failure and then only to the extent
the indemnitor shall be prejudiced by such failure.  Should the indemnitor
fail to discharge or undertake to defend the indemnitee against such
liability upon learning of the same, then the indemnitee may settle such
liability, and the liability of the indemnitor hereunder shall be
conclusively established by such settlement, the amount of such liability
to include both the settlement consideration and the reasonable costs and
expenses, including reasonable attorneys' fees, incurred by the indemnitee
in effecting such settlement.

<PAGE>

     D.    Non-Waiver.  Except as specifically set forth in this
Agreement, nothing contained in this paragraph or any other paragraph of
this Agreement shall be construed or operate as a waiver or release of any
obligation or liability either arising or accruing under the Partnership
Agreement or any Collateral Agreement with respect to the period prior to
the consummation of the sale contemplated hereunder and, except as
specifically set forth herein, the parties hereto agree that they shall
retain their respective obligations and liabilities under the Partnership
Agreement and Collateral Agreements accruing prior to such closing.

     E.    Definition.  As used herein, "Collateral Agreements" means the
agreements listed on Exhibit "D" hereto (which the parties agree is a good
faith listing of the agreements, instruments, documents and covenants
entered into under or pursuant to or in connection with or concurrently
with the Partnership Agreement and any amendment or amendments made at any
time or times heretofore to any such agreements, instruments, documents or
covenants, to the extent known to either party).

  7. SUCCESSORS AND ASSIGNS.  This Agreement and the terms and provisions
hereof shall inure to the benefit of, and be binding upon, the  successors
and assigns of the parties hereto.  Notwithstanding the foregoing, Buyer
may not assign its interest in this Agreement without the prior written
consent of Seller except to an entity which controls, is controlled by or
is under common control with Buyer (but the same shall not release Buyer
from its obligations hereunder).  Buyer shall give notice of any such
transfer as aforesaid to Seller not later than three business days prior to
the Closing Date.

  8. BROKERS.  Seller represents and warrants to Buyer, and Buyer
represents and warrants to Seller, that no broker or finder (other than
HIGroup, LLC and JMB Corporation, the fees or commissions to which shall be
paid by Seller) has been engaged by it, respectively, in connection with
this Agreement.  In the event of a claim for a broker's or finder's fee or
commission in connection with this Agreement (other than a claim by
HIGroup, LLC and JMB Realty Corporation) which claim is based upon any
agreement alleged to have been made by a party hereto, then such party
shall indemnify and defend the other party from and against such claim.

  9. FURTHER INSTRUMENTS.  Each party will, whenever and as often as it
shall be requested so to do by the other, cause to be executed,
acknowledged or delivered any and all such further instruments and
documents as may be necessary or proper, in the reasonable opinion of the
requesting party, in order to carry out the intent and purpose of this
Agreement or any agreement executed by all the parties hereto in connection
herewith.

 10. LIMITATION OF LIABILITY.  No constituent partner in or agent of
Seller, nor any partner, member, trustee, director, officer, employee,
beneficiary, shareholder, participant, representative, advisor or agent of
any entity that is or becomes a direct or indirect constituent partner in
Seller shall have any personal liability, directly or indirectly, under or
in connection with this Agreement or any agreement made or entered into
under or pursuant to the provisions of this Agreement, or any amendment or
amendments to any of the foregoing made at any time or times, heretofore or
hereafter, and Buyer and its successors and assigns and, without
limitation, all other persons and entities, shall look solely to Seller's
assets for the payment of any claim or for any performance, and Buyer, on
behalf of itself and its successors and assigns, hereby waives any and all
such personal liability; provided, however, nothing contained in the
foregoing shall limit the liability of JMB Realty Corporation, in its
capacity as general partner of Seller, for any liability which Seller may
have for any material inaccuracy in or breach of any of the representations
or warranties of Seller set forth in Paragraphs 4A(2) through 4A(9) but not
otherwise.  Notwithstanding anything to the contrary contained in this
Agreement, neither the negative capital account of any constituent partner

<PAGE>

in Seller (or in any other constituent partner of Seller), nor any
obligation of any constituent partner in Seller (or in any other
constituent partner of Seller) to restore a negative capital account or to
contribute capital to Seller (or to any other constituent partner of
Seller), shall at any time be deemed to be the property or an asset of
Seller or any such other constituent partner (and neither Buyer nor any of
its successors or assigns shall have any right to collect, enforce or
proceed against or with respect to any such negative capital account of
partner's obligation to restore or contribute).

 11. SURVIVAL.  Subject to the provisions hereinafter set forth in this
Paragraph 11, all warranties, representations, covenants, obligations and
agreements contained in this Agreement shall survive the closing hereunder
and the transfer and conveyance of the Acquired Partnership Interest
hereunder and any and all performances hereunder for a period of two (2)
years after the Closing Date, at which time all such matters (and any cause
of action thereunder not then in litigation) shall terminate; provided,
however, the indemnification set forth in clause (1) of Paragraph 6A hereof
shall survive without limitation as to time; and provided further, however,
any cause of action of a party for a breach of the foregoing
representations and warranties contained in Paragraphs 4A(7), 4A(8) and
4(A)(9) shall survive only until December 15, 2000 (the "Survival Period"),
at which time such representations and warranties (and any cause of action
resulting from a breach thereof not then in litigation) shall terminate.
Notwithstanding the foregoing, if Buyer shall have actual knowledge as of
the Closing Date that any of the representations or warranties of Seller
contained herein are false or inaccurate or that Seller is in breach or
default of any of its obligations under this Agreement, and Buyer
nonetheless closes the transactions hereunder and acquires the Partnership
Interests, then Seller shall have no liability or obligation respecting
such false or inaccurate representations or warranties or other breach or
default (and any cause of action resulting therefrom shall terminate upon
such closing hereunder)

 12. REMEDIES.  If the transactions provided for in this Agreement shall
not be closed by reason of a party's default hereunder, and the other party
has complied with all of its obligations hereunder in all material respects
and is ready, willing and able to close (such party being herein called the
"Non-Defaulting Party"), then the Non-Defaulting Party shall be entitled to
either (i) specifically enforce this Agreement, or (ii) subject to the
limitations contained elsewhere in this Agreement, pursue an action for
actual damages (but in no event for consequential damages) directly
resulting from such default and resulting failure to close (the amount of
such damages recoverable in such event hereunder not to exceed $50,000 in
the aggregate).

 13. MISCELLANEOUS.  This Agreement contains the entire agreement between
the parties respecting the matters set forth and supersedes all prior
agreements between the parties hereto respecting such matters.  Captions
shall not be used in construing this Agreement.  This Agreement shall be
construed in accordance with the laws of the State of Illinois.  The
termination of this Agreement pursuant to the terms hereof shall in no
event release any party from liability for any breach hereof by such party.

 14. NOTICES.  Any notice which a party is required or may desire to give
any other party shall be in writing and may be personally delivered or
given by United States registered or certified mail, return receipt
requested, addressed as follows:  to Seller, 900 North Michigan Avenue,
19th Floor, Chicago, Illinois 60611, Attention: Ms. Julia Stibolt (with a
copy to Pircher, Nichols & Meeks, 1999 Avenue of the Stars, Suite 2600, Los
Angeles, California 90067, Attention: Real Estate Notices/GML); to Buyer,
c/o The Rouse Company, 10275 Little Patuxent Parkway, Columbia,
Maryland 21044, Attention: B. Owen Williams (with copy to the same address,

<PAGE>

Attention: Arianne Monroe, Esq.); subject to the right of a party to
designate a different address for itself by notice similarly given.  Any
notice so given by United States mail shall be deemed to have been given on
the second day after the same has been deposited in the United States mail
as registered or certified mail, addressed as above provided, with postage
thereon fully prepaid.  Any notice not given by registered or certified
mail as aforesaid shall be deemed to have been given upon receipt of the
same by the party to whom the same is to be given.

 15. COUNTERPARTS.  This Agreement may be executed in any number of
counterparts, provided each of the parties hereto executes at least one
counterpart; each such counterpart hereof shall be deemed to be an original
instrument, but all such counterparts, together, shall constitute but one
agreement.

<PAGE>

     IN WITNESS WHEREOF, the parties have executed this Agreement as of
the day and year first above written.

                            JMB INCOME PROPERTIES, LTD.-VII,
                            an Illinois limited partnership

                            By    JMB REALTY CORPORATION,
                                  a Delaware corporation,
                                  General Partner

                                  By:
                                        ------------------------------
                                  Name:
                                        ------------------------------
                                  Title:
                                        ------------------------------
                                                   "Seller"

                            ROUSE-WESTDALE, LLC,
                            a Maryland limited liability company

                            By:
                                   ------------------------------
                            Name:  B. Owen Williams
                            Title: Vice President
                                                   "Buyer"

<PAGE>

                             EXHIBIT LIST
                             ------------
                            (Westdale Mall)

     A     -     Description of Partnership Agreement and Existing Loan

     B     -     Assignment of Partnership Interest

     C     -     Proration Calculation

     D     -     List of Collateral Agreements

<PAGE>

                              EXHIBIT "A"

        DESCRIPTION OF PARTNERSHIP AGREEMENT AND EXISTING LOAN
        ------------------------------------------------------

     PARTNERSHIP AGREEMENT:  The term "Partnership Agreement" shall refer
to those certain Articles of Partnership of Westdale Associates dated
September 1, 1980 by and between Seller and HNW, as amended by Amendment
No. 1 to Articles of Partnership of Westdale Associates dated June 30,
1997.

     EXISTING LOAN:  The term "Existing Loan" shall collectively refer to
the following loans:

     A.    That certain loan made by Teachers Insurance and Annuity
Association of America ("Teachers") to HNW as evidenced or secured by,
among other things, the documents listed on Schedule "A-1" hereto.

     B.    That certain loan made by Bankers Life Company Bankers") to HNW
as evidenced or secured by, among other things, the documents listed on
Schedule "A-2" hereto.

<PAGE>

                              EXHIBIT "B"

           ASSIGNMENT AND ASSUMPTION OF PARTNERSHIP INTEREST
           -------------------------------------------------

     FOR VALUABLE CONSIDERATION, receipt whereof is hereby acknowledged,
the undersigned, ______________________________, a ____________________
("Assignor"), hereby sells, transfers, assigns and conveys to
_____________, a ____________________ ("Assignee"), the interest of Seller
in ____________________, a ____________________ ("Partnership"), as such
interest is described in the "Partnership Agreement", including, but not
limited to, Seller's interest in the capital and profits and losses of the
Partnership.  As used herein, "Partnership Agreement" means that certain
agreement captioned "____________________" dated as of _______________,
2000, by and between _____________________, together with all amendments or
modifications thereof entered into prior hereto.

     This Assignment and Assumption of Partnership Interest is given
pursuant to that certain agreement captioned "PARTNERSHIP INTEREST PURCHASE
AGREEMENT" (Agreement"), dated as of ____________________, 2000, between
Assignor and Assignee.

     The covenants, agreements, representations, warranties and
limitations provided in the Agreement with respect to the partnership
interest conveyed hereunder are hereby incorporated herein by this
reference as if herein set out in full and shall inure to the benefit of
and shall be binding upon Assignor and Assignee, and their respective
successors and assigns.  Except as set forth in said Agreement, said
partnership interest is assigned without warranty or representation,
express or implied.

Dated as of _______________, 2000

                                  ______________________________,
                                  a _______________

                                  By:
                                       ------------------------------
                                  Name:
                                       ------------------------------
                                  Title:
                                       ------------------------------
                                                   "Assignor"

     Assignee hereby accepts the foregoing assignment of partnership
interests assigned hereby and agrees to assume and discharge all of the
burdens and obligations of Assignor in connection therewith.

Dated as of _______________, 2000

                                  ______________________________,
                                  a _______________

                                  By:
                                       ------------------------------
                                  Name:
                                       ------------------------------
                                  Title:
                                       ------------------------------
                                                   "Assignee"

<PAGE>

                              EXHIBIT "C"

                         PRORATION CALCULATION
                         ---------------------

<PAGE>

                              EXHIBIT "D"

                     LIST OF COLLATERAL AGREEMENTS
                     -----------------------------

     COLLATERAL AGREEMENTS:   The term "Collateral Agreements" shall refer
to the following documents, together with those documents listed on
Schedule "D-1" hereto:

     1.    That certain Letter Agreement dated August 25, 1980 by and
among HNW, Hahn and Seller regarding the recalculations of Partnership
percentages based on base rent.

     2.    That certain Option Agreement dated August 25, 1980 by and
between HNW and Seller (the parties acknowledging that neither party has
been able to locate a copy of such agreement).

     3.    That certain Letter Agreement dated September 1, 1980 by and
between Hahn and Seller regarding the assignment of Hahn's interest in HNW.

     4.    That certain Letter Agreement dated February 11, 1981 by and
among Hahn, HNW, the Partnership and Seller regarding conditions to JMB's
$4,000,000 contribution to the Partnership.

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