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  • A lien waiver is a signed release in which a contractor or supplier gives up the right to file a mechanic’s lien in exchange for payment — the document that gates every construction draw.
  • There are four forms: conditional vs. unconditional, crossed with progress vs. final. Confusing them is the most common draw-package mistake.
  • The safe sequence is conditional-then-unconditional: collect a conditional waiver with the request, the matching unconditional waiver after funds clear.
  • A missing waiver stalls the next draw, even when the work is done and inspected — most lenders will not fund Draw 3 until Draw 2’s unconditional waivers are in the file.
  • The waiver file also keeps title clean so a small unpaid invoice does not delay your refinance or sale.

What a lien waiver actually is

A lien waiver is a signed document in which a contractor, subcontractor, or material supplier gives up — waives — the right to file a mechanic’s lien against the property, in exchange for being paid. On a construction loan, it is the single piece of paper that stands between a draw request and the lender releasing money.

A mechanic’s lien is one of the most powerful tools in construction. Anyone who supplies labor or materials to improve a property can record a lien against the title if they are not paid — and that lien can jump ahead of, or cloud, the lender’s mortgage. So before a construction lender funds a draw, it wants proof that everyone who could file a lien for the prior round of work has already been paid and has signed away that right. That proof is the lien waiver.

The logic is simple: the lender is releasing money to pay for work. It does not want to release a second draw only to discover that the plumber from the first draw was never paid and has now recorded a $14,000 lien. Waivers turn “the GC says everyone got paid” into a documented, enforceable record.

The four types — and why the difference matters

There are exactly four lien waiver forms, and confusing them is the most common draw-package mistake. They split on two axes: conditional vs. unconditional (is the waiver effective only once payment clears?) and progress vs. final (is this a mid-project draw or the last dollar?).

FormWhen it is usedWhat it gives up
Conditional progressRequesting a mid-project drawWaives lien rights for that draw only if and when the payment actually clears
Unconditional progressAfter a mid-project draw has clearedWaives lien rights for that draw outright, no condition
Conditional finalRequesting the final drawWaives all remaining lien rights, effective when final payment clears
Unconditional finalAfter final payment has clearedWaives all lien rights, period — the project is closed out

The safe sequence for a borrower is to collect conditional waivers with the draw request (they cost the sub nothing because they only bite once paid), then collect the matching unconditional waiver after the funds clear. Signing an unconditional waiver before the money is in hand is how subs get burned — they have surrendered the lien right but have nothing to show for it.

A conditional waiver protects the sub; an unconditional waiver protects the lender. A clean draw uses both, in that order, every round.

How a waiver gates the draw

Here is the release sequence on a typical construction draw. Nothing moves to the next step until the prior one is documented:

Step 1GC submits draw request + updated schedule of values
Step 2GC supplies conditional progress waivers from every sub on this draw
Step 3Inspector confirms percent-complete matches the request
Step 4Lender releases the draw, net of retainage
Step 5GC pays subs, then returns unconditional waivers for the cleared draw

Step 5 is the one borrowers forget, and it stalls the next draw. Most lenders will not fund Draw 3 until the unconditional waivers for Draw 2 are in the file. If a sub drags their feet returning a signed waiver, the borrower’s whole project sits — even though the work is done and inspected. Treat waiver collection as part of paying the sub, not as paperwork to chase later.

What goes wrong without them

Two failure modes, both expensive:

Double payment. The GC collects a draw to pay a subcontractor, keeps the money, and the sub files a lien. The borrower now owes the debt twice — once to the GC who was paid, and again to satisfy the lien so title stays clean. Waivers do not eliminate a dishonest GC, but the unconditional-waiver requirement forces proof of payment before more money flows, capping the exposure to a single draw.

A clouded title at refinance or sale. Even a small unpaid invoice can record as a lien, and a lien has to be cleared before the BRRRR refinance or the flip sale can close. A $2,500 unpaid materials bill can delay a six-figure payoff by weeks while it is researched, disputed, and released. The waiver file is what lets the title company issue a clean policy without a separate investigation.

What a clean waiver package looks like

When the draw desk opens your package, it is checking for one waiver per payee, matched to the dollar amount on the request. A complete package has:

  • A conditional progress waiver from every sub and supplier being paid out of this draw — not just the GC.
  • The waiver amount matching the line items on the schedule of values for that trade.
  • Unconditional waivers from the prior draw, proving last round cleared.
  • Correct property identification (legal description or address) and the right form for your state — about a dozen states mandate statutory waiver language.

The fastest way to slow a draw is a missing sub. If the GC lists eight trades on the schedule of values but supplies six waivers, the desk has to stop and ask about the other two before releasing a dollar.

How PML handles waivers on its draws

On a PML construction or rehab loan, we tell the borrower the waiver expectation up front so it never becomes a surprise that stalls a draw. We collect conditional waivers with the request and require the matching unconditional waivers from the prior draw before the next release — the standard two-step. Because we underwrite and service in-house, the same desk that sized your budget reviews your waivers, so there is no hand-off and no second interpretation of what counts as complete. The goal is a draw that funds in days, not one that sits waiting on a form the sub never signed.

Glossary

  • Mechanic’s lien

    A claim recorded against a property’s title by an unpaid contractor or supplier; it can take priority over later financing.

  • Lien waiver

    A signed release in which a payee gives up the right to file a mechanic’s lien in exchange for payment.

  • Conditional waiver

    A waiver effective only once the referenced payment actually clears; safe for the payee to sign with a draw request.

  • Unconditional waiver

    A waiver that gives up lien rights outright; should be signed only after payment is in hand.

  • Retainage

    A percentage of each draw the lender holds back until completion, released at final draw.

  • Schedule of values

    The line-item budget breakdown a draw is measured against; the waiver amounts should reconcile to it.

Frequently asked questions

What is a lien waiver on a construction loan?

It is a signed document in which a contractor, subcontractor, or supplier gives up the right to file a mechanic’s lien against the property in exchange for being paid. Construction lenders require them before releasing each draw so they have proof the prior round of work was paid for.

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

A conditional waiver only takes effect once the referenced payment actually clears, so it is safe to sign alongside a draw request. An unconditional waiver gives up lien rights outright and should only be signed after the payment is in hand. A clean draw collects conditional waivers up front and unconditional waivers after funds clear.

Why does my lender want lien waivers before funding the next draw?

Because it is about to release money to pay for work, and it wants documented proof that everyone who could file a lien for the prior draw has already been paid. Without that proof the lender risks funding a draw while an earlier subcontractor records a lien that jumps ahead of its mortgage.

Can a subcontractor still file a lien if they signed a waiver?

Generally no, for the work and amount the waiver covers, provided it was a valid waiver and the payment cleared. That is the entire point of the document. Disputes usually arise from waivers signed before payment cleared, or waivers that did not actually cover the disputed work.

What happens if I forget to collect a lien waiver?

The most common consequence is a stalled next draw, because most lenders will not release new money until the prior draw’s unconditional waivers are in the file. A missing waiver can also leave a lien on title that has to be cleared before you can refinance or sell.

Do all subcontractors need to sign lien waivers, or just the general contractor?

Every payee who could file a lien should sign — subcontractors and material suppliers, not just the GC. A package with the GC’s waiver but missing two of the eight trades on the schedule of values will stop at the draw desk until the others are supplied.

Does the lien waiver form have to follow my state’s rules?

In about a dozen states, yes — they mandate statutory waiver language and a waiver on the wrong form may be unenforceable. Everywhere else, the form is contractual but lenders and title companies still expect correct property identification and amounts that reconcile to the draw.

PML

PML Underwriting Team

PML underwrites fix-and-flip, bridge, construction, and DSCR rental loans nationwide. This guide reflects how we apply these rules when we size and service a loan.

Building, and want draws that fund in days?

Tell us your project scope and budget. We will walk you through exactly what your draw package needs — waivers included — so your funding never sits waiting on a form.

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