Mechanics Lien
A legal claim against property for unpaid construction work or materials.
What it means
A mechanics lien (in some states, a construction or materialman's lien) is a legal claim recorded against real property by someone who improved it — a contractor, subcontractor, or supplier — and was not paid. A recorded lien clouds the property's title and can ultimately force a sale to satisfy the debt. Lien rights are created by state statute, with strict notice requirements and filing deadlines that vary by state.
Why it matters before you sign
The lien is often the strongest payment-collection tool in construction — but it only exists if every notice and deadline along the way was met, so know your state's steps before you need them.
In a contract, it looks like this
After sixty days without payment, the drywall subcontractor recorded a mechanics lien against the property for the unpaid balance.
This definition is a general, educational explanation — not legal advice. XOsign provides AI-assisted document tools and does not provide legal advice; consider consulting a qualified attorney for guidance on your specific situation. Requirements vary by state.
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