Mich. Comp. Laws § 46.353
Each January a county commission and a regional commission shall elect from its membership a president, a secretary, and other officers as it considers necessary. The officers shall hold office for the calendar year in which they are elected and until their successors are elected and qualified. The county treasurer shall be treasurer of a county commission and the county treasurer of the county furnishing the larger portion of the approved budget shall be treasurer of a regional commission. A majority of the members of the commission shall constitute a quorum for the transaction of business and the business which a county or regional commission may perform shall be conducted at a public meeting of the county or regional commission held in compliance with Act No. 267 of the Public Acts of 1976, being sections 15.261 to 15.275 of the Michigan Compiled Laws. Public notice of the time, date, and place of the meeting shall be given in the manner required by Act No. 267 of the Public Acts of 1976. The county board of commissioners may authorize a county commission to adopt bylaws and enter into contracts. A regional commission may adopt bylaws and enter into contracts.
MCL 46.353