Construction Contracts
Mechanic's Lien Notice and Waivers
Written and reviewed by Andrew R. Schneidman, Esq. · Last reviewed
A mechanic's lien is a contractor, subcontractor, or supplier's legal claim against a property for unpaid work or materials. Most owners and contractors never see one filed, because the notice and waiver paperwork that surrounds a lien is designed to keep payment on track before a claim becomes necessary at all.
Schneidman Law handles lien notice and waiver paperwork for owners, contractors, and subcontractors across Middle Tennessee, so payment rights stay protected on both sides of the job without either party discovering a gap after the money has already moved.
What is a mechanic's lien?
A mechanic's lien is a security interest in the property, available under Tennessee law to contractors, subcontractors, and suppliers who furnish labor or materials to improve it and are not paid for that work.
The lien attaches to the property itself, not just to whoever owes the money, which is what makes it a meaningful protection for the party owed payment and a meaningful risk for an owner who has already paid the general contractor in full.
Who can file a mechanic's lien in Tennessee?
General contractors, subcontractors, and suppliers who furnish labor or materials for an improvement to real property can typically claim a lien, though the specific notice steps required differ depending on whether the claimant has a direct contract with the owner.
A party with a direct contract with the owner generally has more straightforward lien rights than a subcontractor or supplier several tiers removed, which is exactly why notice paperwork matters more the further down the contracting chain a party sits.
What notice does Tennessee require before filing a lien?
Tennessee law sets specific notice requirements and strict deadlines that run from events like the start of work or the last date labor or materials were furnished, and missing a deadline can affect whether a lien claim is valid.
Because these deadlines are calculated from specific project events and vary by the claimant's role in the project, the safest practice is calendaring the relevant dates the moment work begins, not waiting until payment becomes a concern to check what notice was required.
What is a lien waiver?
A lien waiver is a document in which a contractor, subcontractor, or supplier gives up lien rights, either for a specific payment already received or for the entire project once final payment is made.
Owners and lenders typically require a lien waiver before releasing each payment, which is how a project moves forward without every payment application also becoming a negotiation over lien exposure.
What is the difference between conditional and unconditional waivers?
A conditional waiver takes effect only once the referenced payment actually clears, while an unconditional waiver takes effect immediately upon signing, regardless of whether payment is later received.
Signing an unconditional waiver before payment clears gives up lien rights before the money is confirmed in hand. Matching the waiver type to the actual payment status, conditional before funds clear, unconditional after, is the detail that protects a contractor's leverage without holding up the draw process.
How do owners protect themselves from lien exposure?
Owners protect themselves by requiring lien waivers from every party in the payment chain at each draw, confirming subcontractors and suppliers are actually being paid, not just the general contractor.
Paying the general contractor in full does not guarantee subcontractors and suppliers were paid. Collecting waivers from the full chain of parties who furnished labor or materials, not just the party the owner contracted with directly, is what actually closes that gap.
Andrew’s take
Lien exposure rarely feels urgent while a project is underway, which is exactly why it gets overlooked. Owners usually find out there was a gap when they go to sell or refinance the property years later and a title search turns up a lien nobody remembered. Keeping the waiver paperwork current while everyone is still on the job is what prevents that surprise.
Frequently asked questions
Does a lien waiver need to be signed for every single payment?+
Best practice is yes, a waiver tied to each payment application, rather than one waiver at the end of the project. Waivers at each draw keep the paper trail current and make final closeout faster because there is no backlog of unresolved paperwork.
Can a lien waiver cover future work that has not been performed yet?+
A waiver should only cover work and materials already furnished and the specific payment it corresponds to. Waiving rights to future, unperformed work removes a protection the claimant has not yet been paid to give up.
Do residential projects carry the same lien notice requirements as commercial projects?+
Tennessee's lien statute applies to improvements to real property generally, but specific notice steps can differ by project type and by whether the claimant contracted directly with the owner, which is why the notice requirements deserve confirmation for each project rather than an assumption carried over from the last one.
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