In addition to any other duties set forth in any provision of this act, the Bank and the Commission shall, and the Towns may, coordinate with, and provide information to the United states Department of Defense and any official or employee thereof, regarding any matter related to the ownership, condition, closure, conversion, redevelopment or future use or operation of Fort Devens. Notwithstanding any other provision of law, and except as provided in sections twelve and fifteen of this act, the Bank shall be the only person or entity in the Commonwealth authorized to negotiate, purchase or otherwise obtain on behalf of itself, the Commonwealth or any of its political subdivisions, agencies or authorities any fee ownership, easement, lease, license or other property interest in any property in, or on a part of, Fort Devens.