Mich. Comp. Laws § 457.25

Sec. 5. Said corporations shall have full power and authority to make and establish rules, regulations, and by-laws for regulating and governing all the affairs and business of said corporations, not contrary to the laws of this state and the United States, and to designate, elect, or appoint, from among their number such officers under such names and styles as shall be in accordance with the constitution and charter of such society, who shall have the supervision, control, and management of the affairs of said corporations.