1.4 Lien Law, Bond Claims, and Dispute Resolution

Key Takeaways

  • A mechanic's lien secures payment against improved private property; deadlines run from the date labor or materials were last furnished.
  • Lien waivers are conditional or unconditional and progress or final — never sign an unconditional waiver before payment clears.
  • A surety bond involves principal, obligee, and surety; the Miller Act requires payment and performance bonds on federal jobs over $100,000.
  • Public property cannot be liened, so unpaid subs pursue the payment bond instead, typically within 90 days of last furnishing.
  • Dispute resolution escalates negotiation to mediation (non-binding) to arbitration (usually binding) to litigation.
Last updated: June 2026

Mechanic's Liens

A mechanic's lien (also called a construction or materialman's lien) is a security interest a contractor, subcontractor, or supplier records against the improved property to secure payment. Because state deadlines differ, the exam tests the process, not one state's calendar: many states require a preliminary notice early in the job, a recorded claim of lien within a fixed period after last furnishing labor/materials, and a suit to foreclose within a later deadline or the lien expires.

Lien Process and Typical Deadlines

StepPurposeTypical Window (varies by state)
Preliminary / Pre-lien NoticePreserve lien rights~20 days after first furnishing
Notice of Intent to LienDemand before recordingBefore filing
Record Claim of LienCreate the lien60-90 days after last work
Suit to ForecloseEnforce the lien6-12 months after recording
Release / Satisfaction of LienClear title after paymentOn payment

The exam point: deadlines run from the date labor or materials were last furnished, and missing the window forfeits lien rights even though the debt remains.

Lien Waivers — A High-Frequency Trap

Lien waivers exchanged at payment come in four forms. Confusing them is a top exam error.

Waiver TypeWhen UsedRisk
Conditional ProgressWith a progress paymentEffective only when check clears
Unconditional ProgressAfter payment confirmedWaives rights immediately
Conditional FinalWith final paymentEffective when final check clears
Unconditional FinalFinal payment confirmedWaives all rights now

Never sign an unconditional waiver before the money is in hand — it surrenders lien rights even if the check bounces.

Surety Bonds and Public Projects

A surety bond is a three-party agreement among the principal (contractor), the obligee (owner), and the surety. On federal public works, the Miller Act requires a payment bond and a performance bond on contracts over $100,000. Many states copy it as a Little Miller Act. Because you cannot lien public property, an unpaid sub on a public job pursues the payment bond instead of a mechanic's lien — a frequent exam distinction.

Bond Types and Claim Scenario

  • Bid bond: guarantees the bidder will sign the contract and furnish bonds (commonly 5-10% of bid).
  • Performance bond: guarantees completion to contract terms (often 100% of contract value).
  • Payment bond: guarantees payment of subs and suppliers.

Scenario: A second-tier subcontractor on a $2,000,000 federal courthouse is unpaid $48,000. It cannot lien the courthouse, so it gives notice and files a Miller Act payment-bond claim, typically within 90 days of last furnishing and suit within one year.

Dispute Resolution Ladder

Disputes escalate from cheapest to most costly. Know the order and that mediation is non-binding while arbitration is usually binding.

MethodBinding?DeciderCost/Speed
NegotiationNoThe partiesLowest
MediationNoNeutral facilitatorLow
ArbitrationUsually yesArbitrator(s)Moderate
LitigationYesJudge/juryHighest

Many construction contracts mandate mediation then binding arbitration before litigation. An arbitration award is enforceable in court and offers limited appeal rights, which the exam contrasts with a mediator who has no power to impose a decision.

Test Your Knowledge

An unpaid second-tier subcontractor on a federal public building project seeks payment. What is the correct remedy?

A
B
C
D
Test Your Knowledge

A contractor receives a progress check and is asked to sign a waiver, but the check has not yet cleared. Which waiver protects the contractor best?

A
B
C
D

Preliminary Notices and Filing Deadlines

Mechanic's lien rights hinge on notice and timing, and the deadlines are favorite exam numbers. Many states require a preliminary (pre-lien) notice within ~20 days of first furnishing labor or materials to preserve lien rights, especially for subs and suppliers with no direct owner contract. The lien must be recorded within a state window (commonly 60–90 days after last work or project completion) and foreclosed within a longer period (often one year). Miss the recording deadline and the lien is lost — the contractor becomes an unsecured creditor.

Bonds vs. Liens on Public vs. Private Work

You cannot lien public property. Instead, federal public work uses the Miller Act, requiring a payment bond and performance bond on contracts over $100,000; states use Little Miller Acts. Unpaid subs/suppliers make a bond claim against the payment bond instead of a lien. Distinguish the three surety bonds: a bid bond guarantees the bidder will sign; a performance bond guarantees completion; a payment bond guarantees subs and suppliers are paid.

Common Exam Traps

  • Trap: You can place a lien on a city school. No — public property is lien-exempt; pursue the payment bond.
  • Trap: A lien lasts indefinitely once recorded. It expires unless foreclosed within the statutory period.
  • Trap: Arbitration and litigation are the same. Arbitration is private, binding, and usually faster/cheaper; mediation is non-binding facilitation; litigation is public court.
  • Trap: A lien waiver signed at partial payment waives all future rights. Read the type — conditional vs. unconditional, progress vs. final.
Test Your Knowledge

A subcontractor on a $2 million federal courthouse project is unpaid. What is the correct recovery mechanism?

A
B
C
D

Lien Waivers — Match the Four Types

Lien waivers come in four flavors and the exam tests the matrix: conditional vs. unconditional crossed with progress vs. final. A conditional progress waiver waives rights only up to the stated amount and only once payment clears — the safest for a sub to sign. An unconditional final waiver releases all remaining lien rights immediately and should be signed only after the final check has cleared. Signing an unconditional waiver before funds arrive is the classic costly error.