Michigan Compiled Laws, Chapter 691. Judiciary § 691.1694

Sec. 14. (1) An arbitrator or an arbitration organization acting in that capacity is immune from civil liability to the same extent as a judge of a court of this state acting in a judicial capacity.

(2) The immunity afforded by this section supplements any immunity under other law.

(3) The failure of an arbitrator to make a disclosure required by section 12  1 does not cause any loss of immunity under this section.

(4) In a judicial, administrative, or similar proceeding, an arbitrator or representative of an arbitration organization is not competent to testify, and may not be required to produce records as to any statement, conduct, decision, or ruling occurring during the arbitration proceeding, to the same extent as a judge of a court of this state acting in a judicial capacity. This subsection is subject to both of the following:

(5) If a person commences a civil action against an arbitrator, arbitration organization, or representative of an arbitration organization arising from the services of the arbitrator, organization, or representative or if a person seeks to compel an arbitrator or a representative of an arbitration organization to testify or produce records in violation of subsection (4), and the court decides that the arbitrator, arbitration organization, or representative of an arbitration organization is immune from civil liability or that the arbitrator or representative of the organization is not competent to testify, the court shall award to the arbitrator, organization, or representative reasonable attorney fees and other reasonable expenses of litigation.