Maryland Courts and Judicial Proceedings Section 3-203

      (a)      An initial petition shall be filed with the court in the county:

            (1)      As provided by the agreement; or

            (2)      Where the arbitration hearing was held.

      (b)      If the agreement does not provide for a county in which the petition shall be filed or if the hearing has not been held, the petition shall be filed with the court in:

            (1)      The county where the adverse party resides;

            (2)      The county where the adverse party has a place of business; or

            (3)      If the adverse party has neither a residence nor a place of business in the State, any county.

      (c)      A subsequent petition shall be filed with the court hearing the initial petition unless the court directs otherwise.