Mich. Comp. Laws § Article VII § 4: County officers; terms, combination.

Sec. 4.

There shall be elected for four-year terms in each organized county a sheriff, a county clerk, a county treasurer, a register of deeds and a prosecuting attorney, whose duties and powers shall be provided by law. The board of supervisors in any county may combine the offices of county clerk and register of deeds in one office or separate the same at pleasure.