Lien Waivers: Conditional vs. Unconditional, and When to Collect Them

An owner can pay the general contractor in full and still face a lien from a subcontractor the contractor never paid. Lien waivers are the paper trail that prevents this. They are also one of the most commonly mishandled documents on a project.

The four basic types

1. Conditional progress waiver. Waives rights for work through a stated date, on the condition that the stated payment is actually received. Sign it when you submit the pay application.
2. Unconditional progress waiver. Waives those rights immediately, whether or not you were paid. Sign it only after the money has cleared your account.
3. Conditional final waiver. Waives all rights for the entire project once final payment is received.
4. Unconditional final waiver. Waives all rights for the entire project immediately. Sign only after final payment has cleared.

The rule that prevents most problems

Conditional waivers travel with the request for payment. Unconditional waivers travel with the next request, as proof that the previous payment arrived. If someone asks you for an unconditional waiver before paying you, that is a red flag.

Who should provide waivers

The whole chain, not just the general contractor: subcontractors, sub-subcontractors and material suppliers who have preliminary notice or lien rights. An owner or lender who collects waivers only from the GC has no evidence that the people actually doing the work were paid.

What to check on every waiver

• The right party and project. Legal names match the contract; property address or legal description is correct.
• Through date. The waiver covers work only up to the stated date. Later work is not waived.
• Amount. The payment amount matches the pay application and the check.
• Exceptions. Disputed claims, retainage and pending change orders are often listed as exceptions. Know what remains open.
• Type and condition. Conditional or unconditional, progress or final, matches the situation.
• Signature and date. Signed by an authorized person, with the date filled in. Some states require notarization.
• State form. Several states, including California, Texas, Florida and Georgia, prescribe statutory waiver forms; using a non-compliant form can make it unenforceable.

Cautions for contractors and subs

• Never sign an unconditional waiver for money you have not received.
• Read for broad release language that waives claims beyond payment for the work, such as delay or change-order claims.
• Keep the waiver amount tied to the actual check amount and the through date.

How this fits the pay application

A clean draw package typically includes the pay application (for example an AIA G702/G703), the schedule of values, and waivers from the contractor and major subs for the prior period (unconditional) and the current period (conditional). Lenders often will not fund a draw without them. A mismatch between the waiver amounts and the pay application is one of the first things a draw reviewer looks for. MEXUM cross-checks pay applications against supporting documents such as these and flags the gaps.

General information, not legal advice. Lien law is state-specific; consult a construction attorney for your situation.

Frequently asked questions

What is the difference between a conditional and an unconditional lien waiver?

A conditional waiver takes effect only once the stated payment is received. An unconditional waiver takes effect immediately on signing, even if the payment never arrives. Sign unconditional waivers only after funds have cleared.

When should a lien waiver be signed?

Conditional waivers go with each payment request. Unconditional waivers are exchanged once payment has cleared, usually with the next pay application. The final waivers are signed at project closeout.

Do I need lien waivers from subcontractors and suppliers?

Yes. Waivers only from the general contractor do not show that the subs and suppliers who did the work were paid; unpaid lower-tier parties can still file liens in many states.

Are lien waiver forms the same in every state?

No. Several states prescribe statutory forms and wording, and using the wrong form can make a waiver unenforceable. Check your state requirements or ask a construction attorney.