Mich. Comp. Laws § 41.58: Disability of incumbent or incumbent's deputy; temporary appointment.

Sec. 58.

If, because of disabilities, the incumbent in a township office and the incumbent's deputy are unable to perform the duties of their offices, the township board may make a temporary appointment of a suitable person to discharge the duties of the incumbent's office. The person so appointed shall take the oath of office or give bond as required by law and shall continue to discharge such duties until the office is filled by election or permanent appointment or until the disability of the incumbent or the incumbent's deputy is removed.