<PAGE>   1
                                                                EXHIBIT 10.74

                               AMENDMENT NO. 1 TO
                              AMENDED AND RESTATED
                  REVOLVING CREDIT AND REIMBURSEMENT AGREEMENT


         THIS AMENDMENT AGREEMENT is made and entered into this 28th day of
February, 1997, by and among CAPSTONE CAPITAL CORPORATION, a Maryland
corporation (herein called the "Borrower"), NATIONSBANK, N.A. (SOUTH) (the
"Agent"), as Agent for the lenders (the "Lenders") party to the Amended and
Restated Revolving Credit and Reimbursement Agreement dated June 24, 1996 among
such Lenders, Borrower and the Agent (the "Agreement") and each of the Lenders
party to the Agreement.

                              W I T N E S S E T H:

         WHEREAS, the Borrower, the Agent and the Lenders have entered into the
Agreement pursuant to which the Lenders have agreed to make revolving loans to
the Borrower in the principal amount of $150,000,000 as evidenced by the Notes
(as defined in the Agreement); and

         WHEREAS, the parties hereto desire further to amend the Agreement in
the manner herein set forth effective as of the date hereof;

         NOW, THEREFORE, the Borrower, the Agent and the Lenders do hereby agree
as follows:

         1.       Definitions.  The term "Agreement" as used herein and in the
Loan Documents (as defined in the Agreement) shall mean the Agreement as hereby
amended and modified. Unless the context otherwise requires, all terms used
herein without definition shall have the definition provided therefor in the
Agreement.

         2.       Amendments.  Subject to the conditions hereof, the Agreement
is hereby amended, effective as of the date hereof, as follows:

                  (a) The definition of "Total Revolving Credit Commitment" in
         Section 1.01 is hereby amended in its entirety so that as amended it
         shall read as follows:

                           "'Total Revolving Credit Commitment' means an amount
                  equal to (i) $170,000,000 or (ii) at such time as existing
                  Exhibit A hereto is amended by the entering into of an
                  Amendment Agreement in the form of Exhibit J by the Borrower,
                  the Agent and any lender or lenders agreeing to provide
                  additional Loans of up to $10,000,000, an amount equal to
                  $180,000,000, as such amounts are reduced from time to time in
                  accordance with Section 2.07;"

                  (b) Exhibit A to the Agreement is amended in its entirety so
         that as amended it is in the form and content attached hereto as
         Exhibit A; and


<PAGE>   2



            (c) A new Exhibit J substantially in the form attached hereto
         is added to the Agreement.

         3. Each Subsidiary of the Borrower has joined in the execution of this
Amendment Agreement for the purpose of (i) agreeing to the amendment to the
Agreement including the increase in the Total Revolving Credit Commitment to
$180,000,000 and (ii) confirming its guarantee of payment of all the
Obligations. Each Lender agrees that the Total Revolving Credit Commitment may
be increased to $180,000,000 without the requirement that such Lender join in
the execution of an Amendment Agreement in the form of Exhibit J hereto.

         4. Representations and Warranties. The Borrower hereby certifies that:

            (a) The representations and warranties made by Borrower in
         Article VI thereof are true on and as of the date hereof except that
         the financial statements referred to in Section 6.01(f) shall be those
         most recently furnished to each Lender pursuant to Section 7.01(a) and
         (b);

            (b) There has been no material change in the condition,
         financial or otherwise, of the Borrower and its Subsidiaries since the
         date of the most recent financial reports of the Borrower received by
         each Lender under Section 7.01 thereof, other than changes in the
         ordinary course of business, none of which has been a material adverse
         change;

            (c) The business and properties of the Borrower and its
         Subsidiaries are not, and since the date of the most recent financial
         report of the Borrower and its Subsidiaries received by each Lender
         under Section 7.01 thereof have not been, adversely affected in any
         substantial way as the result of any fire, explosion, earthquake,
         accident, strike, lockout, combination of workers, flood, embargo,
         riot, activities of armed forces, war or acts of God or the public
         enemy, or cancellation or loss of any major contracts; and

            (d) No event has occurred and no condition exists which, upon
         the consummation of the transaction contemplated hereby, constituted a
         Default or an Event of Default on the part of the Borrower under the
         Agreement or the Notes either immediately or with the lapse of time or
         the giving of notice, or both.

         5. Conditions.  As a condition to the effectiveness of this
Amendment Agreement, the Borrower shall deliver, or cause to be delivered to the
Agent, the following:

            (a)      Twelve (12) executed counterparts of this Amendment
         Agreement;

            (b)      Executed Notes;

            (c)      Resolution of the Board of Directors of Borrower and
         each Subsidiary;



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                  (d)      a certificate of the Secretary or Assistant Secretary
         of the Borrower as to Charter, Bylaws, Resolutions and incumbency of
         officers executing this Amendment Agreement;

                  (e)      a certificate of the Secretary or Assistant Secretary
         of each Subsidiary as to the Charter, Bylaws, Resolutions and
         incumbency of officers executing this Amendment Agreement;

                  (f)      an opinion of counsel for the Borrower and its
         Subsidiaries in form and content acceptable to the Agent;

                  (g)      a certificate of an Authorized Representative
         demonstrating compliance, as of December 31, 1996, with Sections 8.01,
         8.02, 8.03, 8.04, 8.05 and 8.06 of the Agreement, which certificate
         shall be substantially in the form of Exhibit I to the Agreement;

                  (h)      such other instruments and documents as the Agent may
         reasonably request; and

                  (i)      receipt by the Agent for the benefit of itself and
         the Lenders of all fees payable to the Agent and the Lenders.

         6.       Other Documents. All instruments and documents incident to the
consummation of the transactions contemplated hereby shall be satisfactory in
form and substance to the Agent and its counsel; the Agent shall have received
copies of all additional agreements, instruments and documents which it may
reasonably request in connection therewith, including evidence of the authority
of Borrower to enter into the transactions contemplated by this Amendment
Agreement, in each case such documents, when appropriate, to be certified by
appropriate corporate or governmental authorities; and all proceedings of the
Borrowers relating to the matters provided for herein shall be satisfactory to
the Agent and its counsel.

         7.       Entire Agreement. This Amendment Agreement sets forth the
entire understanding and agreement of the parties hereto in relation to the
subject matter hereof and supersedes any prior negotiations and agreements among
the parties relative to such subject matter. No promise, conditions,
representation or warranty, express or implied, not herein set forth shall bind
any party hereto, and no one of them has relied on any such promise, condition,
representation or warranty. Each of the parties hereto acknowledges that, except
as in this Amendment Agreement or otherwise expressly stated, no
representations, warranties or commitments, express or implied, have been made
by any other party to the other. None of the terms of conditions of this
Amendment Agreement may be changed, modified, waived or canceled orally or
otherwise, except by writing, signed by all the parties hereto, specifying such
change, modification, waiver or cancellation of such terms or conditions, or of
any proceeding or succeeding breach thereof.

         8.       Full Force and Effect of Agreement. Except as hereby
specifically amended, modified or supplemented, the Agreement and all of the
other Loan Documents are hereby confirmed and ratified in all respects and shall
remain in full force and effect according to their respective terms.


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         IN WITNESS WHEREOF, the parties hereto have caused this Amendment
agreement to be duly executed by their duly authorized officers, all as of the
day and year first above written.

                                   CAPSTONE CAPITAL CORPORATION
WITNESS:

/s/ Alice Kay Lamon                By:  /s/ Andrew L. Kizer
----------------------------          -------------------------------------
                                   Name:    Andrew L. Kizer
                                   Title:   Vice President/Secretary/Treasurer
----------------------------


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<PAGE>   5



                                   GUARANTORS:

                                    CAPSTONE CAPITAL OF ALABAMA, INC.
                                    CAPSTONE CAPITAL OF PENNSYLVANIA, INC.
                                    CAPSTONE CAPITAL OF CALIFORNIA, INC.
                                    CAPSTONE CAPITAL OF BONITA BAY, INC.
                                    CAPSTONE CAPITAL OF CAPE CORAL, INC.
                                    CAPSTONE CAPITAL OF SARASOTA, INC.
WITNESS:                            CAPSTONE CAPITAL OF TEXAS, INC.
                                    CAPSTONE CAPITAL OF LAS VEGAS, INC.
 /s/ Alice Kay Lamon                CAPSTONE CAPITAL OF BAYTOWN, INC.
--------------------------

                                    By: /s/ Andrew L. Kizer
--------------------------             ------------------------------------
                                    Name:    Andrew L. Kizer
                                    Title:   Vice President/Secretary/Treasurer


                                    CAPSTONE OF BONITA BAY, LTD.
                                    By its General Partner:
                                    Capstone Capital of Bonita Bay, Inc.

                                    By: /s/ Andrew L. Kizer
                                       ------------------------------------
                                    Name:    Andrew L. Kizer
                                    Title:   Vice President/Secretary/Treasurer


                                    CAPSTONE OF CAPE CORAL, LTD.
                                    By its General Partner:
                                    Capstone Capital of Cape Coral, Inc.

                                    By: /s/ Andrew L. Kizer
                                       ------------------------------------
                                    Name:    Andrew L. Kizer
                                    Title:   Vice President/Secretary/Treasurer


                                    CAPSTONE OF SARASOTA, LTD.
                                    By its General Partner:
                                    Capstone Capital of Sarasota, Inc.

                                    By: /s/ Andrew L. Kizer
                                       ------------------------------------
                                    Name:    Andrew L. Kizer
                                    Title:   Vice President/Secretary/Treasurer




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<PAGE>   6



                                    CAPSTONE CAPITAL OF SAN ANTONIO, LTD.
                                    By its General Partner:
                                    Capstone Capital of Cape Coral, Inc.

                                    By: /s/ Andrew L. Kizer
                                       ------------------------------------
                                    Name:    Andrew L. Kizer
                                    Title:   Vice President/Secretary/Treasurer


                                    CAPSTONE OF LAS VEGAS, LTD.
                                    By its General Partner:
                                    Capstone Capital of Las Vegas, Inc.

                                    By: /s/ Andrew L. Kizer
                                       ------------------------------------
                                    Name:    Andrew L. Kizer
                                    Title:   Vice President/Secretary/Treasurer


                                    CAPSTONE OF BAYTOWN, LTD.
                                    By its General Partner:
                                    Capstone Capital of Baytown, Inc.

                                    By: /s/ Andrew L. Kizer
                                       ------------------------------------
                                    Name:    Andrew L. Kizer
                                    Title:   Vice President/Secretary/Treasurer




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<PAGE>   7



                                    NATIONSBANK, NATIONAL ASSOCIATION
                                    (SOUTH), as Agent


                                    By: /s/ Nancy S. Goldman
                                       ------------------------------------
                                    Name: NANCY S. GOLDMAN
                                         ----------------------------------
                                    Title: VICE PRESIDENT
                                          ---------------------------------










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<PAGE>   8
                                    AMSOUTH BANK OF ALABAMA


                                    By: /s/ Mark Housel
                                       ------------------------------------
                                    Name: L. MARK HOUSEL
                                         ----------------------------------
                                    Title: COMMERCIAL BANKING OFFICER
                                          ---------------------------------


                                      8
<PAGE>   9
                                    CREDIT LYONNAIS NEW YORK BRANCH


                                    By: /s/ Farboud Tavangar
                                       ------------------------------------
                                    Name: Farboud Tavangar
                                         ----------------------------------
                                    Title: First Vice President
                                          ---------------------------------


                                      9
<PAGE>   10
                                    NATIONAL CITY BANK OF KENTUCKY


                                    By: /s/ Roderic M. Brown
                                       ------------------------------------
                                    Name: Roderic M. Brown
                                         ----------------------------------
                                    Title: Vice President
                                          ---------------------------------


                                      10
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                                    CREDITANSTALT CORPORATE FINANCE, INC.


                                    By: /s/ Robert M. Biringer
                                       ------------------------------------
                                    Name: Robert M. Biringer
                                         ----------------------------------
                                    Title: Executive Vice President
                                          ---------------------------------


                                    By: /s/ Scott Kray
                                       ------------------------------------
                                    Name: Scott Kray
                                         ----------------------------------
                                    Title: Senior Associate
                                          ---------------------------------


                                      11
<PAGE>   12

                                    THE BANK OF NOVA SCOTIA


                                    By: /s/ Dana Maloney
                                       ------------------------------------
                                    Name: DANA MALONEY
                                         ----------------------------------
                                    Title: RELATIONSHIP MANAGER
                                          ---------------------------------


                                      12
<PAGE>   13
                                    FIRST COMMERCIAL BANK


                                    By: /s/ James Michael Pnebub Jr.
                                       ------------------------------------
                                    Name: JAMES MICHAEL PNEBUB JR.
                                         ----------------------------------
                                    Title: COMMERCIAL LOAN OFFICER
                                          ---------------------------------


                                      13
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                                    THE SUMITOMO BANK, LIMITED


                                    By: /s/ Sybil H. Weldon
                                       ------------------------------------
                                    Name: SYBIL H. WELDON
                                         ----------------------------------
                                    Title: VICE PRESIDENT & MANAGER
                                          ---------------------------------


                                    By: /s/ Lauren P. Carrigan
                                       ------------------------------------
                                    Name: LAUREN P. CARRIGAN
                                         ----------------------------------
                                    Title: ASST. VICE PRESIDENT
                                          ---------------------------------

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                                    EXHIBIT A


                        Applicable Commitment Percentages


<TABLE>
<CAPTION>
                                                                        Applicable
                                             Revolving Credit           Commitment
Lender                                          Commitment              Percentage
------                                          ----------              ----------

<S>                                            <C>                    <C>
NationsBank, N.A. (South)                      $ 45,000,000           26.470588235%

AmSouth Bank of Alabama                        $ 25,000,000           14.705882353%

Credit Lyonnais New York Branch                $ 30,000,000           17.647058824%

National City Bank of Kentucky                 $ 15,000,000            8.823529412%

Creditanstalt Corporate Finance, Inc.          $ 25,000,000           14.705882353%

The Bank of Nova Scotia                        $ 10,000,000            5.882352941%

First Commercial Bank                          $ 10,000,000            5.882352941%

The Sumitomo Bank, Limited                     $ 10,000,000            5.882352941%
                                               ------------          -------------

                  Total                        $170,000,000          100%
</TABLE>



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