A mechanics lien is a claim against real estate filed by a contractor, subcontractor, laborer, or supplier who improved the property and was not paid, and it can be foreclosed to force a sale if the debt stays unpaid. For investors, a mechanics lien matters any time work was done on a property in the last several months: it can show up after you close, it can eat a seller’s equity before you assign a contract, and it can hit you on your own rehab even after you paid your general contractor in full.
How a construction lien attaches to a property
Cornell’s Legal Information Institute defines a mechanic’s lien as a security interest acquired by someone who spends material or labor working on a property. It also goes by construction lien or materialman’s lien. The work became part of the land, so the land secures the bill.
Three features make this lien different from a judgment lien or a tax lien:
- The claimant may never have dealt with the owner. Subcontractors and material suppliers can lien even though they only had a contract with the general contractor. California’s contractor licensing board warns homeowners that the owner is ultimately responsible for payment, even if they already paid the direct contractor.
- There is a filing window after the work ends. Depending on the state, claimants get roughly two to eight months after finishing to record.
- Priority can relate back. In some states a lien recorded today takes its place in line as of the date work started or a notice was recorded, which can be before you bought the property or before your lender’s mortgage.
Many states also require early notices from parties who are not in a direct contract with the owner. In California, a preliminary notice generally must be given no later than 20 days after the claimant first furnished work. In Florida, a lienor not in privity with the owner must serve a notice to owner no later than 45 days after it starts work.
Relation-back priority: why a clean title search is not the whole story
Florida is the clearest example. Before most permitted improvements, the owner records a notice of commencement. Under Fla. Stat. 713.07(2), liens of contractors, subcontractors, and suppliers “shall attach and take priority as of the time of recordation of the notice of commencement.” The notice generally stays effective for one year after recording unless it states a different date. So a roofer who finishes in March and records a claim in May can take priority as of the notice recorded back in January, ahead of a deed or mortgage recorded in between.
Texas uses a different trigger. Under Tex. Prop. Code 53.124, the lien’s inception is generally the date construction began or materials were delivered, as long as the work or materials were visible on an inspection of the land. The owner and original contractor may also record an affidavit of commencement. Either way, a lien recorded after your closing can claim a start date before it.
That is the hidden-lien risk in plain terms: the public records can be clean on the day you close, and a valid lien for work done before you owned the property can still be recorded afterward. If you need a refresher on reading the records themselves, start with our walkthrough on how to do a title search.
Mechanics lien deadlines in five states
There is no national mechanics lien law. Each state sets its own deadlines to record and to sue, and missing either one usually ends the lien. The table below covers five large investor markets. “Completion” has a specific statutory meaning in several of these states, so treat the table as a map, not a calculator.
| State | Deadline to record the lien | Deadline to sue to enforce | Investor note |
|---|---|---|---|
| California | Direct contractor: earlier of 90 days after completion or 60 days after a notice of completion or cessation is recorded. Others: earlier of 90 days after completion or 30 days after that notice (Civ. Code 8412, 8414) | 90 days after the claim of lien is recorded, unless a credit extension is recorded (Civ. Code 8460) | Waivers must substantially follow the statutory forms; a release bond is 125% of the claim |
| Texas (original contracts on or after Jan. 1, 2022) | 15th day of the 3rd month after the month work ended for residential projects; 15th day of the 4th month for non-residential (Prop. Code 53.052) | First anniversary of the last day the lien affidavit could have been filed; extendable to two years after filing by a recorded written agreement with the owner (Prop. Code 53.158) | HB 2237 rewrote much of Chapter 53 effective Jan. 1, 2022, including a one-year suit deadline for all projects |
| Florida | No later than 90 days after the lienor’s final furnishing of labor, services, or materials (Fla. Stat. 713.08(5)) | 1 year after recording; the owner can shorten it to 60 days by recording a Notice of Contest of Lien (Fla. Stat. 713.22) | Priority relates back to the notice of commencement |
| Arizona | 120 days after completion, or 60 days after a notice of completion is recorded (A.R.S. 33-993) | Lien lapses 6 months after recording unless suit is filed and a lis pendens recorded (A.R.S. 33-998) | “Completion” is defined by statute, including 60 straight days with no work |
| New York | 8 months after completion; 4 months for a single-family dwelling (Lien Law 10) | 1 year after filing unless a foreclosure action and notice of pendency are filed, or the lien is extended (Lien Law 17) | On single-family homes, an extension requires a court order |
Sources for the table: California Civ. Code 8412; Texas Prop. Code 53.052 and 53.158; Florida Stat. 713.08; Arizona A.R.S. 33-993 and 33-998; New York Lien Law 10.
A note on Texas: the 2022 rules apply only to original contracts with the owner signed on or after January 1, 2022. For an older project the prior law governs, even if a subcontract was signed later.
Why buyers of rehabbed or half-finished properties get caught
Distressed sellers are often just past a renovation they could not afford, and tired landlords patch roofs before selling. Each job creates lien rights, and the party most likely to be unpaid is a sub or supplier the seller never met.
Worked example: the roofer you never heard of (HYPOTHETICAL)
A Florida seller hires a general contractor for a $38,000 roof and kitchen job. The notice of commencement is recorded in January. The seller pays the GC in full in April. The GC never pays its roofing sub, who is owed $11,400 and served a notice to owner early in the job. You buy the house for cash on May 10. The roofer’s last day on site was April 2, so it has until July 1 to record a claim of lien.
The roofer records on June 20. Because the notice of commencement was recorded in January and is still effective, the lien’s priority dates back before your deed. Your title search on May 9 was clean, and if your owner’s policy kept the standard exception for unrecorded liens, it may not cover this. You now owe a stranger’s $11,400 claim on a flip budgeted to net $30,000.
What would have prevented it: asking about recent work, pulling the notice of commencement, requiring a final contractor’s affidavit and releases from every lienor who served a notice to owner, and asking the title company to delete the mechanics lien exception based on those documents. Budget for surprises too. Our guide on how to estimate repair costs covers contingency lines, and the fix and flip calculator lets you see how a five-figure hit changes your profit before you commit.
What wholesalers need to check before assigning
It is tempting to treat liens as the end buyer’s problem. They are yours too. First, the lien comes out of the seller’s proceeds, and a seller whose net suddenly drops may refuse to close. Second, your buyer’s title company will find a recorded lien, and an assignment that falls apart at the closing table costs you the fee and your reputation with that buyer.
Worked example: the seller’s shrinking net (HYPOTHETICAL)
You contract a house at $142,000 and plan to assign it for $12,000. The seller owes $96,000 on the mortgage and expects about $38,000 after closing costs. The title commitment comes back with a $14,800 claim of lien from a plumbing contractor the seller says “did a bad job.” The seller’s net is now roughly $23,000. They want a higher price or out.
You have options, but none of them are free: negotiate the lien down with the contractor, cut your fee, help the seller bond off the lien so the sale can close while the dispute continues, or walk away under your contract’s title contingency. The fix is to open title early. Run a search on the day you sign, put the lien on your seller net sheet, and have the conversation before the seller has spent money they do not have. An investor-friendly title company will turn a commitment quickly and tell you what it needs to clear the lien.
Lien waivers when you are paying contractors on a rehab
On your own flip, you are the owner, so you are exposed if your GC does not pay the electrician or the lumber yard. The tool is the lien waiver (or lien release), collected every time money changes hands.
Waivers come in four types:
- Conditional waiver on progress payment: releases lien rights for a draw, but only once the payment actually clears.
- Unconditional waiver on progress payment: releases lien rights for that draw immediately, whether or not the check clears.
- Conditional waiver on final payment: releases all remaining lien rights once the final payment clears.
- Unconditional waiver on final payment: releases everything, immediately.
California and Texas both prescribe these four forms by statute. In California, the conditional progress form (Civ. Code 8132) states that it waives lien rights “effective on receipt of payment,” while the unconditional final form warns the signer that it is enforceable “even if you have not been paid.” Under Civ. Code 8124, a conditional waiver protects the owner only if the claimant signed a form substantially matching the statute and there is evidence of payment, such as the claimant’s endorsement on a check the bank paid. In Texas, Prop. Code 53.284 makes a waiver unenforceable unless it substantially complies with the applicable statutory form.
A simple draw routine for a small rehab:
- Before work starts, get a written list of every sub and major supplier the GC will use.
- With each draw request, collect a conditional progress waiver from the GC for this draw and unconditional progress waivers from the GC and key subs for the previous draw, now that it has cleared.
- If a sub or supplier sent you a preliminary notice, consider a joint check payable to the GC and that party.
- At the end, collect conditional final waivers before the last payment, and unconditional final waivers once it clears.
How to find a mechanics lien before you close
Recorded liens are easy to find; unrecorded lien rights take questions and documents. Add these steps to your real estate due diligence:
- Read Schedule B of the title commitment. Recorded claims of lien appear as requirements to be paid or released, or as exceptions.
- Search the county records for construction notices. A notice of commencement (Florida) or affidavit of commencement (Texas) tells you a job was underway and when it started.
- Pull permit history from the city or county building department. An open or recently finaled permit is a direct signal.
- Ask the seller in writing what work was done in the last year, by whom, whether everyone was paid, and whether they received any preliminary notices or notices to owner.
- Get releases and an owner’s affidavit at closing covering the lien period.
The mechanics lien exception in your title policy
A standard owner’s policy commonly excepts “any lien, or right to a lien, for services, labor, or material” that is not shown by the public records. In other words, the exact risk in the roofer example is carved out unless you get it removed. Stewart Title’s underwriting guidance describes how: the exception may be deleted on an owner’s affidavit that no improvements were made during the lien period; if only repairs were made, an affidavit describing them and stating they were paid in full; and after recent construction, final affidavits, proof of payment, and a list of contractors and suppliers. Ask for this deletion, often called extended coverage, on every purchase where recent work is possible. Our guide to title insurance for investors explains the rest of Schedule B.
Ways to clear a lien that is already recorded
- Payoff and release. Get a written payoff, pay through closing, and have the title company record the release.
- Bond off or transfer to security. The lien moves from the land to a bond or cash deposit, so the sale can close while the dispute continues. In California the release bond is 125% of the claim (Civ. Code 8424). In Florida, Fla. Stat. 713.24 requires the claim amount, plus three years of interest at the legal rate, plus the greater of $5,000 or 25% of the claim for fees and costs.
- Shorten the clock. In Florida, recording a Notice of Contest of Lien gives the lienor 60 days to sue or lose the lien.
- Let it expire, then clean the record. If no enforcement suit was filed in time, the lien is unenforceable, but it may still sit on the record. California lets an owner petition a court for a release order once the 90-day enforcement window passes without a suit (Civ. Code 8480). Where no quicker statutory path exists, a quiet title action may be needed.
If a foreclosure suit has been filed, look for a lis pendens on the property. At that point, pricing the deal requires an attorney’s view of the claim, not a guess.
Where beginners lose money on construction liens
- Trusting a clean search on a recently renovated house. The lien window may still be open.
- Paying the GC and assuming that is the end of it. Unpaid subs and suppliers can still lien the property in many states.
- Collecting unconditional waivers too early, or only from the GC.
- Firing a contractor mid-job without a final accounting. In Texas, for example, the filing clock runs from the month the contract was completed, terminated, or abandoned, and a fired contractor is motivated to file.
- Applying one state’s deadline everywhere. Florida’s 90 days, New York’s 4 months for a single-family home, and Texas’s month-counting rule produce very different dates for the same job.
- Wholesaling a deal before opening title, so the lien surfaces after the buyer has paid earnest money and the seller has made plans with money that is not there.
Mechanics lien FAQ
Can a subcontractor lien my property if I paid my contractor in full?
In many states, yes, if the sub followed its notice and filing rules. That is why waivers from subs, not just the GC, matter.
How long does a mechanics lien last?
Only as long as the state’s enforcement window, unless the claimant sues in time. That is 90 days after recording in California, six months in Arizona, and one year in Florida and New York, subject to the extensions and shortcuts in the table above.
Does owner’s title insurance cover a lien recorded after I buy?
Only if the mechanics lien exception was deleted or the policy otherwise covers it. Read Schedule B before closing.
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