Conditional vs. Unconditional Lien Waivers: What Every GC Needs to Know

What Is a Lien Waiver?

A lien waiver is a legal document where a contractor, subcontractor, or supplier gives up their right to file a mechanics lien against a property, either conditionally or permanently.

There are four common types. Using the wrong one at the wrong time can cause problems, but requirements and enforceability vary significantly by state and by the terms of the specific contract. This overview is general educational information, not legal advice. Always review the requirements with a qualified professional for your specific state and project.

The Four Types

Conditional Waiver on Progress Payment

Use during: partial payment, before the check clears.

This waiver says the signer waives lien rights if and when this payment clears. If the payment doesn't come through, the waiver is void. This is generally the safer waiver to sign before payment is confirmed.

Unconditional Waiver on Progress Payment

Use after: a partial payment has cleared your account.

This permanently waives lien rights for that payment amount. In most situations, you should only sign this after the payment has been verified, not when it is promised or in transit.

Conditional Waiver on Final Payment

Use during: final payment, before it clears.

Same as the conditional progress waiver, but covering the full contract amount. Becomes void if final payment doesn't come through.

Unconditional Waiver on Final Payment

Use after: final payment has cleared and the project is complete.

This permanently waives all lien rights on the project. Only sign when you are fully paid and have no remaining claims.

A Practical Collection Workflow

Here is a sequence many builders use:

1. 1.Sub completes work → collect conditional progress waiver before submitting draw
2. 2.Payment funds → verify it has cleared
3. 3.Pay the sub → collect unconditional progress waiver
4. 4.Repeat for each draw
5. 5.Final draw funded and cleared → collect unconditional final waiver from all subs and suppliers

This sequence protects both the GC and the subs throughout the project.

What Can Go Wrong

Lenders and owners sometimes request unconditional waivers before payment has actually cleared. The conditional version generally satisfies the same lender documentation requirement while keeping your rights intact until the money is in your account. If you're unsure what a specific lender requires, ask before signing.

Lien waiver laws vary by state. Some states have mandatory statutory forms; others allow custom language. Consult a qualified attorney familiar with construction law in your state for guidance on your specific situation.

Keeping Track Across Multiple Draws

On a project with multiple draws and multiple subcontractors, lien waiver collection becomes a volume problem. Tracking which waivers are requested, received, and verified, for each sub, on each phase, is one of the workflows Builtly is being built around.

Early Access

Builtly is being built for the draw-readiness workflow.

Organize phases, lien waiver status, progress photos, and budget information in one place so you can see what is missing before a payment request goes out. Personal onboarding, no credit card required.

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