What a Waiver of Lien Is and when it applies
A Waiver of Lien is a written document in which a claimant who provided labor, services, or materials for a construction project relinquishes the right to file a mechanics' or materialman's lien against specified property. It can be conditional (effective on receipt of payment) or unconditional (effective immediately). Contractors, subcontractors, suppliers, and property owners use these waivers to document payment and manage lien risk during progress payments, final payment, or at closing.