Mich. Comp. Laws § 46.72
When the claim of any person, firm or corporation against a county shall be disallowed in whole or in part by the board of supervisors or board of county auditors, such person, firm or corporation may appeal from the decision of such board to the circuit court for the same county, by causing a written notice of such appeal to be served on the county clerk within 20 days after such disallowance: Provided, That no appeal shall be allowed, unless such claimant shall have appeared before the said board and presented evidence or shall have attached an affidavit in support of such claim. The appeal herein authorized shall be of no force or effect, unless there is filed with the county clerk at the same time the notice of appeal is served a bond for 200 dollars running to the county with sufficient surety, to be approved by the county clerk, conditioned for the faithful prosecution of such appeal and the payment of all costs that may be adjudged against the appellant.
MCL 46.72