SEVENTH  AMENDMENT  (THIS  "AMENDMENT") TO THE PURCHASE  AGREEMENT
              BY AND BETWEEN LOWER TOWN  DEVELOPMENT  GROUP,  L.L.C.(f/k/a
              LOWERTOWN  DEVELOPMENT  GROUP,  L.L.C.  ("Lower  Town") AND
              UNIVERSITY  BANK  DATED  SEPTEMBER  14TH,  2002 (the "Agreement")

              Lower Town and University Bank hereby agree to amend the terms of
              the Agreement as follows:

              If University Bank, in its sole discretion, can give notice on or
              before November 1, 2005 that it will vacate the premises commonly
              known as 959 Maiden Lane, Ann Arbor, Michigan by December 15,
              2005, the following modifications to the Agreement shall apply:

              1)  Lower Town Development Group, L.L.C. shall pay to University
                  Bank $800,000 upon the closing of the construction financing
                  pertaining to the project commonly known as Lower Town or
                  December 31, 2005, which ever occurs first; and

              2)  Lower Town Development Group, L.L.C. shall pay the $200,000
                  that was deferred from the sale of 959 Maiden Lane upon the
                  closing of the construction financing pertaining to the
                  project commonly known as Lower Town or December 31, 2005,
                  which ever occurs first. The purchase price under the
                  Agreement shall remain at $2,000,000 for the contemplated
                  facility in Building E.

              In all other respects, the Agreement shall remain in full force
              and effect.

Lowertown Development Group, LLC,
         By: Terra Management Company
         Its:  Manager


         By:      /s/Scott A. Chapelle
                  _________________________________
                  Scott A. Chapelle
         Its:     Manager

University Bank



         By:      /s/Stephen Lange Ranzini
                  ___________________________________
                  Stephen Lange Ranzini
         Its:     President