Mich. Comp. Laws § 600.1621: Venue; determination; exceptions.

Sec. 1621.

Except for actions provided for in sections 1605, 1611, 1615, and 1629, venue is determined as follows:

The county in which a defendant resides, has a place of business, or conducts business, or in which the registered office of a defendant corporation is located, is a proper county in which to commence and try an action.

If none of the defendants meet 1 or more of the criteria in subdivision (a), the county in which a plaintiff resides or has a place of business, or in which the registered office of a plaintiff corporation is located, is a proper county in which to commence and try an action.

An action against a fiduciary appointed by court order shall be commenced in the county in which the fiduciary was appointed.