Mich. Comp. Laws § 570.422: Pleadings subsequent to answer; amended complaint.

Sec. 22.

There shall be no pleadings subsequent to the answer, but within 10 days after filing and service of answer, or demurrer, the complainant or intervenor, may file and serve an amended complaint, to which answer or demurrer shall be filed, as hereinbefore provided in case of original complaints.