Mich. Comp. Laws § 120.29
The port commission shall elect from among its members a chairperson, vice-chairperson, and secretary. The officers selected shall possess and exercise the powers granted to them by the commission. The port commission, by resolution, shall adopt rules governing the transaction of its business and shall adopt an official seal. Proceedings of the board of commissioners shall be by resolution recorded in a book kept for that purpose. The funds of the port district shall be paid to the county treasurer, of the county in which the port district is situated, or if it consists of 2 or more whole counties, then to the county treasurer designated by the commission. Disbursements shall be made by the officer on warrants drawn by the county auditor, or, in port districts not having a county auditor, on warrants drawn by the county clerk, on order of, or vouchers approved by, the port commission. The port commission shall have an office in which they shall keep maps, charts, plans, and documents relating to the land and waters and all matters for which the commission is responsible. The commission shall have access to other maps, charts, plans, and documents relating to port district in the office or custody of a public board, commission, or officer.
MCL 120.29