Mich. Comp. Laws § 247.466
The proceedings herein provided for improving any highway, shall be subject to review upon certiorari. Notice of such certiorari shall be served upon the county commissioners, or 1 of them or upon the state highway commissioner, within 10 days after the making of their apportionment of benefits for such improvement has been filed with the county clerk in the same manner as notice is required to be given of certiorari for reviewing judgments returned by the justice of the peace, and the writ shall be issued and served, and the bond given and approved, and all subject matter brought to issue in the same way and manner as in such case provided, except that such certiorari may be heard by the court during term, or at chambers, upon 5 days' notice given to the opposing party; and the circuit court of the county shall hear and determine the same without necessary delay; and if any material defect be found in the proceedings, such proceedings shall be set aside in so far as erroneous with consent to the county road commissioners, or the state highway commissioner, to proceed anew with their proceedings from the point where the defect occurs. The entire proceedings shall not be set aside except where the county road commissioners, or the state highway commissioner, are found to have no jurisdiction to act upon the petition presented. If the proceedings be sustained, the party bringing the certiorari shall be liable for the costs thereof; and if they be not sustained in whole, or in part, the parties petitioning for the proposed improvement, shall be liable for the costs. If no certiorari be brought within the time herein described, the improvements shall be deemed to have been legally ordered and established, and its legality shall not thereafter be questioned in any suit at law, or in equity. When such proceedings are brought, the county road commissioners, or the state highway commissioner, shall postpone the letting of contracts if they have not been let, and of all other proceedings until after the determination of the court.
MCL 247.466