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                                                                   Exhibit 10.73


                      AMENDED AND RESTATED PROMISSORY NOTE

            THIS PROMISSORY NOTE, made as of November 1, 1994 by and between
DIHC PROPERTIES I, INC., a Georgia corporation ("Maker"), having an office at
Suite 2000, 200 Galleria Parkway, N.W., Atlanta, Georgia 30339, and STICHTING
PENSIOENFONDS VOOR DE GEZONDHEID, GEESTELIJKE EN MAATSCHAPPELIJKE BELANGEN, a
foundation formed according to the laws of The Netherlands ("Payee"), having an
office at Kroostweg Number 149, Zeist, The Netherlands.

            FOR VALUED RECEIVED, Maker promises to pay to the order of Payee at
its office recited above or at such other place as may be designated in writing
by the holder hereof, the principal sum of Thirty Three Million Three Hundred
Ten Thousand Three Hundred Four and 78/100 Dollars ($33,310,304.78), with
interest thereon in lawful money of the United States of America, such principal
and interest to be payable as follows:

            Interest and amortization shall be payable in thirty-five (35) equal
constant monthly payments of interest and principal in the amount of Two Hundred
Sixty Eight Thousand Twenty Two and 25/100 Dollars ($268,022.25) attributable
first to interest at the rate of nine percent (9%) per annum, and then the
balance to principal, payable on the first day of each month during the term of
this Note, beginning on December 1, 1994. The entire unpaid principal balance,
together with any accrued but unpaid interest thereon, shall be due and payable
on October 1, 1997 (the "Maturity Date").

            Upon any default hereunder the continuance of such default for a
period of twenty (20) days after the due date, or upon any default under the
Deed to Secure Debt and Security Agreement dated December 31, 1988, recorded in
Deed Book 5207, Page 306, Cobb County,
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Georgia records, as amended (the "Security Deed"), from Maker to Payee securing
this Note and the continuance of such default after the expiration of any
applicable grace period under the Security Deed, Maker promises immediately to
pay to the holder hereof the principal and interest remaining due and unpaid
hereunder, together with all costs and expenses incurred in connection with the
collection or attempted collection hereof and reasonable attorneys' fees
actually incurred, whether or not suit is instituted. Interest shall accrue on
such amounts from the date of such default at the rate of twelve percent (12%)
per annum, provided that any such interest which has accrued shall be paid at
the time of and as a condition precedent to the curing of any default.

            Maker agrees to be bound to the extent provided in the Security Deed
and waives and renounces any and all exemption rights and the benefit of all
valuation and appraisal privileges as against the indebtedness evidenced hereby
or any renewal or extension thereof except as set forth in the Security Deed,
waives demand, protest, notice of nonpayment, and any and all lack of diligence
or delays in the collection or enforcement hereof, and expressly consents to any
extension of time, release of any party liable for the indebtedness evidenced
hereby, release of any of the security of this Note, acceptance of other
security therefor, or any other indulgence or forbearance whatsoever by Payee,
any one or all of which may be made without notice to Maker or such released
party or any other party.

            This Note may be prepaid in whole or in part at any time upon ten
(10) days' prior written notice, without fee or penalty, but with accrued
interest on the amount so prepaid.

            The parties hereto have intended in good faith to comply with all
applicable usury laws. Notwithstanding anything to the contrary contained in
this Note or any other instrument evidencing, securing, or relating to this
Note, Maker shall not be obligated or required to pay


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interest at a rate which would subject Payee to either criminal or civil
liability or forfeiture. If, by the terms of this Note or any other instrument
evidencing, securing or relating to this Note, Maker at any time is required or
obligated to pay interest on the principal amount of this Note in an amount or
at a rate in excess of the applicable legal maximum, the interest due to Payee
shall be immediately and automatically reduced to such maximum, the interest
payable shall be computed at such maximum rate, and all prior interest payments
in excess of such lawful maximum shall be immediately and automatically applied,
and shall be deemed to have been treated as having been applied at the time or
receipt, in reduction of the principal balance due under this Note.

            The principal amount, plus accrued interest, shall become
immediately due and payable at the option of Payee upon the happening of any
event by which said balance shall or may become due and payable under the terms
of the Security Deed (subject to any applicable grace period).

            No delays on the part of Payee in exercising any right hereunder or
under the Security Deed or any other agreement further evidencing or securing
this Note shall operate as a waiver thereof or preclude the exercise thereof at
any time during the continuance of any default or during the continuance of a
subsequent default.

            Notwithstanding any other provisions of this Note or the Security
Deed to the contrary, neither the obligation of Maker to pay the debt evidenced
by this Note and the Security Deed nor the obligation of Maker to perform any
covenant or agreement contained in this Note or the Security Deed, shall be
enforced by any action or proceeding wherein or whereby damages or any money
judgment shall be sought against Maker or any of its partners or officers,
directors or


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partners of such partners, except a foreclosure or other action against the
property encumbered by the Security Deed, and any judgment in any such
foreclosure or other action shall be enforceable against Maker only to the
extent of its interest in such property and the income therefrom and no
deficiency or other personal judgment shall be rendered or entered against Maker
or any of its partners or officers, directors or partners of such partners in
such foreclosure or other action. Nothing in this paragraph shall, however, (1)
be deemed to affect the priority of the lien and the security title created by
the Security Deed, (2) impair the right of Payee to accelerate the maturity of
this Note (or to avail itself of its other rights and remedies against the
property encumbered by the Security Deed and Maker's interest therein,) upon a
default under this Note or the Security


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Deed, or (3) relieve Maker of any of the covenants or obligations set forth in
this note or the Security Deed subject, however, to the limitations on personal
liability set forth above.

            This Note may not be modified or terminated orally. This Note may be
assigned by Payee, in its sole discretion , without the consent of Maker. This
Note shall be construed and enforced in accordance with the law of Georgia.

            The Property encumbered by the Security Deed is located in Cobb
County, Georgia.

            IN WITNESS WHEREOF, Maker has executed this Note under seal
effective as of the date first set forth above.

                                                  DIHC PROPERTIES I, INC.
                                                  a Georgia Corporation


                                                  By: /s/ Barrington H. Branch
                                                     ---------------------------
                                                  Barrington H. Branch
                                                  President


                                                  Attest: /s/ C. Lowell Ball
                                                         -----------------------
                                                  C. Lowell Ball
                                                  Secretary


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