Mich. Comp. Laws § 125.1621

Sec. 21. A municipality may commence an action for an injunction, or any other appropriate remedy at law, against a corporation which has not substantially complied with the time limits established in its approved project plan, reasonable delays caused by unforeseen difficulties excepted, or which has failed to substantially perform its obligations. The corporation may commence an action for an injunction, mandamus, or any other appropriate remedy at law, against a municipality for failure to render a final decision on a project plan within 6 months after the date on which the plan was first submitted to the governing body for approval. A citizen residing in the project or district area whose interest is substantially affected by the project plan may bring an action against the corporation or municipality for an appropriate remedy at law or for equitable relief.