Michigan Compiled Laws, Chapter 600. Revised Judicature Act of 1961 § 600.1418

Sec. 1418. No court of record shall discontinue any matter before it because of a vacancy in the office of any or all of its judges nor because of any judge being issued a new commission. Judges assigned temporarily or persons appointed in any new commissions, have power to continue, hear, determine and sign all matters that their respective predecessors could have continued, heard, determined, and signed.