TO PROCESS SERVER: You must serve the notice of judgment lien and file proof of service with the court clerk. If you are a SUBCONTRACTOR or SUPPLIER, fill out the sample.Understand Michigan mechanics lien laws, deadlines, and notice requirements on private construction projects, including free forms. Part I Construction Liens. A contractor, subcontractor, supplier, or laborer who provides an improvement to real property may acquire a construction lien. • (Form in handout). – Critically important for general contractors. The claim form must be filed in the register of deeds office in the county in which the property is located. Add the Michigan lien form for redacting. A copy of the attachment must be filed with the registrar of deeds in the Michigan county where the debtor's property is located.