Mich. Comp. Laws § 125.2105

Sec. 5. (1) The powers of the authority shall be vested in the members in office. Regardless of the existence of a vacancy, a majority of the members of the authority constitutes a quorum necessary for the transaction of business at a meeting or the exercise of a power or function of the authority. Action may be taken by the authority at a meeting upon a vote of the majority of the members present. (2) The authority shall meet at the call of the chairperson or as may be provided in the bylaws of the authority. Meetings of the authority may be held anywhere within the state.