Maryland Courts and Judicial Proceedings Section 3-213
§ 3-213.
  (a)   (1)   Unless the agreement provides otherwise, the arbitrators shall designate a time and place for hearing and notify the parties, personally or by certified mail, return receipt requested, bearing a postmark from the United States Postal Service, not less than five days before the hearing.
    (2)   Appearance at the hearing waives the notice.
  (b)   (1)   Except as provided in § 3-215(b), the arbitration hearing shall be conducted by all the arbitrators.
    (2)   The arbitrators may adjourn the hearing from time to time as necessary.
    (3)   Upon request of a party and for good cause shown or on their own motion, the arbitrators may postpone the hearing to a time not later than the date set by the agreement for the award, unless the parties consent to a later date.
  (c)   The arbitrators may hear and determine the controversy upon the evidence produced notwithstanding the failure of a party duly notified to appear.
  (d)   On petition of a party, the court may direct the arbitrators to proceed promptly with the hearing and determination of the controversy.