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MI  ·  Mechanic's Lien Guide

Michigan Mechanic's Lien Warning Requirements for Contractors

Know your deadlines before you lose your rights. Michigan lien law in plain English — no legalese, no fluff.

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Disclaimer: This is general information, not legal advice. Verify current deadlines with your state's contractor board or a construction attorney before relying on any figure here.
Key Deadlines

Michigan Lien Law at a Glance

📅
Lien Filing Deadline
90 days from last furnishing of labor or materials
from last day of furnishing labor or materials
⚠️
Preliminary Notice
Required
20 days from first furnishing labor or materials (for subs/suppliers not in direct contact with owner)
📋
Notice to Owner
Required
Notice of Furnishing must be served on the owner and prime contractor within 20 days of first furnishing. Serving late limits rights to work done 20 days before the notice.
👷
Who Can File
Contractors, subcontractors, material suppliers, laborers, architects, engineers
⚠️ Preliminary Notice Required

Michigan's Preliminary Notice Requirement

Subcontractors and material suppliers not in direct contract with the owner must serve a "Notice of Furnishing" within 20 days of first furnishing. This is required to preserve lien rights.

Deadline: 20 days from first furnishing labor or materials (for subs/suppliers not in direct contact with owner)
Commercial vs Residential

Does the Property Type Change Your Deadline?

Same notice and filing requirements apply. Michigan's Notice of Furnishing requirement is strictly enforced. Verify with local counsel for residential owner-occupied projects.

Common Mistakes

What Contractors Get Wrong in Michigan

1
Serving the Notice of Furnishing late — limits lien rights to work done 20 days before notice
2
Failing to serve the notice on both the owner AND the prime contractor
3
Missing the 90-day lien filing deadline after last furnishing

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FAQ

Michigan Lien Law Questions

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This is general information, not legal advice. Verify current deadlines with your state's contractor board or a construction attorney. JobPapers sells document organization tools — we are not attorneys and do not provide legal services.