Maryland State Government Section 14-104

      (a)      Condemnation of private property by the United States shall be in accordance with Title 12 of the Real Property Article.

      (b)      (1)      Except as provided in paragraph (2) of this subsection, this title does not authorize acquisition, by condemnation, of any tract of land that exceeds 10 acres.

            (2)      The United States may condemn more than 10 acres on which to build an arsenal, coastal defense, fort, or magazine, including the barracks for staff.