RATIFICATION AND AMENDMENT OF AGREEMENT OF SALE

     THIS RATIFICATION AND AMENDMENT OF AGREEMENT OF SALE (this "Amendment"),
is entered into as of the 15th day of April, 1997, by and between CROSSTOWN
ASSET CORP. I, a Delaware corporation ("Purchaser"), and LABROC II LIMITED
PARTNERSHIP, a Michigan limited partnership ("Seller").

                                   RECITALS

     A.  Purchaser and Seller entered into that certain Agreement of Sale dated
March 18, 1997 (the "Agreement") pursuant to which Purchaser agreed to purchase
and Seller agreed to sell the property commonly known as Ross Plaza, Federal
Way, Washington and more particularly described in the Agreement (as defined in
the Agreement, the "Property").

     B.  Purchaser subsequently terminated the Agreement by providing Seller
with the notice required under the Agreement.

     C.  Purchaser now desires to purchase and Seller now desires to sell the
Property on the same terms and conditions set forth in the Agreement, except as
amended by this Amendment.

     NOW THEREFORE, Purchaser and Seller hereby agree as follows:

     1.  Ratification of Agreement.  Purchaser agrees to purchase and Seller
agrees to sell the Property on the terms and conditions set forth in the
Agreement, except as expressly modified by this Amendment.  Purchaser hereby
directs Escrow Agent to hold the Deposit (as defined in Section 2.1 of the
Agreement) in accordance with the provisions of the Escrow Agreement (as
defined in Section 2.1 of the Agreement).

     2.  Inspection Period.  The Inspection Period (as defined in Section 7.1
of the Agreement) is hereby extended and will end at 5:00 p.m. Chicago time on
April 23, 1997.

     3.  Closing Date.  The Closing Date (as defined in Section 8 of the
Agreement) is hereby changed to Friday, May 23, 1997.

     4.  Environmental Testing.  Purchaser has performed initial Phase II
environmental testing and has requested that additional Phase II environmental
testing (collectively, the "Phase II Testing") of the Property be done.
Purchaser and Seller agree to jointly review the proposal from the
environmental consultant selected by Purchaser and reasonably acceptable to
Seller to determine the scope and cost of the additional Phase II Testing.  As
soon as reasonably practical following Purchaser's and Seller's approval of the
scope and cost of the additional Phase II Testing, Purchaser shall engage the
environmental consultant to perform the additional Phase II Testing.  If
Purchaser does not purchase the Property pursuant to the Agreement, Seller
agrees to pay the cost of the Phase II Testing on the Property (or reimburse
Purchaser, within two business days following a termination of the Agreement,
in the event Purchaser has already paid such costs).  Any changes to the scope
or cost of the Phase II Testing must be approved by both Purchaser and Seller
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in writing.  Upon completion of the Phase II Testing, both Purchaser and Seller
shall be provided with copies of any report or data issued by the environmental
consultant.

     5.  Agreement in Full Force and Effect.  Except as set forth in this
Amendment, the terms, covenants, conditions and agreements of the Agreement
shall remain unmodified and otherwise in full force and effect.  In the event
of any inconsistency between the terms of the Agreement and the terms of this
Amendment, the terms of this Amendment shall control.  The term, "Agreement"
shall now mean the Agreement as modified by this Amendment.


     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
executed and delivered as of the date first set forth above.

                         PURCHASER:

                         CROSSTOWN ASSET CORP. I, a Delaware corporation

                         By:   /s/ Jeffrey A. Parker
                              ---------------------------------
                         Name:     Jeffrey A. Parker
                              ---------------------------------
                         Its:      Vice President
                              ---------------------------------

                         SELLER:

                         LABROC II 
                         LIMITED PARTNERSHIP, an Illinois limited partnership

                         By:  Balcor Equity Partners-II, an Illinois
                              general partnership

                              By:  The Balcor Company, a Delaware
                                   corporation, its general partner

                                   By:   /s/ John K. Powell, Jr.
                                        ---------------------------------
                                   Name:     John K. Powell, Jr.
                                        ---------------------------------
                                   Its:      Senior Vice President
                                        ---------------------------------
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                                    JOINDER

     The undersigned executes this joinder solely for the purposes of
effectuating its obligations arising under Paragraph 28 of the Agreement.

                              THE BALCOR COMPANY, a Delaware corporation

                              By:   /s/ John K. Powell, Jr.
                                   ---------------------------------
                              Name:     John K. Powell, Jr.
                                   ---------------------------------
                              Its:      Senior Vice President
                                   ---------------------------------


                        ACKNOWLEDGMENT BY ESCROW AGENT

     Escrow Agent hereby acknowledges that Escrow Agent is holding the Earnest
Money (as defined in Section 2.1 of the Agreement) pursuant to the terms of the
Escrow Agreement (as defined in the Section 2.1 of the Agreement).


                              ESCROW AGENT:

                              NEAR NORTH NATIONAL TITLE CORPORATION,
                              as agent for First American Title
                              Insurance Company

                              By:   /s/ Mike Beach    
                                   -------------------------------
                              Its: Authorized Representative
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