Mich. Comp. Laws § 450.159a

Sec. 159a. Notwithstanding any provision or statement contained in the articles or statement of incorporation of any corporation formed or now existing under section 159, such corporation being now designated a church trustee corporation, the number of the trustees constituting such church trustee corporation may be increased in number to not more than 9 or decreased in number to not less than 3 without amendment of its articles or statement of incorporation. The increase or decrease in the number of its trustees may be accomplished by a resolution of the organization or association first electing the trustees or by a resolution of a successor organization or association. The resolution may be adopted at a regular meeting of the organization or association or at a special meeting called for that purpose. The trustees may be divided into classes whose terms of office expire at different dates. The officer presiding over the meeting shall give to the existing trustees a copy of the resolution certified by him to be a correct copy. Any additional trustees may be elected at the meeting at which the resolution is adopted.