Mich. Comp. Laws § 85.9: City offices; qualifications; defaulters, election or appointment void.

Sec. 9.

No person shall be elected or appointed to any office unless he be an elector of the city, and if elected or appointed for a ward, he must be an elector thereof; and no person shall be elected or appointed to any office in the city who has been or is a defaulter to the city or to any board or officers thereof, or to any school district, county, or other municipal corporation of the state. All votes for, or any appointment of, any such defaulter shall be void.