Lien waiver

A lien waiver is a signed document in which a party with lien rights — a general contractor, subcontractor, or material supplier — gives up the right to place a mechanic’s lien on the property, typically in exchange for receiving payment.

Lien waivers come in a few common forms: conditional or unconditional, and for a progress payment or final payment. A conditional waiver only takes effect once payment actually clears; an unconditional one is effective immediately, so the order and timing matter a great deal.

For owners and GCs, collecting waivers as payments are made protects against double-payment and surprise liens at closeout. For subs and suppliers, understanding which type you’re signing protects your payment rights.

Lien waivers are a paperwork and tracking problem as much as a legal one — they need to be requested, collected, and matched to payments across many parties. Keeping that trail organized alongside the rest of the project record avoids closeout headaches.