Mich. Comp. Laws § 500.8232

Sec. 8232. No such transformation shall take place until after its plan has been approved by the commissioner, either with or without a hearing as herein provided, and until such approved plan has been adopted by a majority vote of the board of directors or board of trustees of such society; and, if submitted to the supreme governing body, until such approved plan has also been adopted by a majority vote of the said supreme governing body present and voting.