When you perform construction work or supply materials to a project in New York City and don't get paid, a mechanics lien is one of the most powerful tools available to secure what you are owed. A properly filed mechanics lien attaches to the property itself, giving contractors, subcontractors, material suppliers, and laborers significant leverage to recover unpaid amounts. However, New York's Lien Law is technical and unforgiving—small mistakes in timing, content, or service can render a lien invalid.
Our New York City mechanics lien attorneys represent parties on every side of construction payment disputes. Whether you need to file a lien to protect your right to payment, enforce a lien through foreclosure, or challenge and discharge an improper lien filed against your property, we provide the strategic guidance and aggressive advocacy required to protect your interests.
A mechanics lien is a legal claim against real property arising from the improvement of that property. Under Article 2 of the New York Lien Law, any contractor, subcontractor, laborer, material supplier, architect, engineer, or surveyor who performs work or furnishes materials for the improvement of real property—with the consent of the owner—is entitled to a lien for the value of that work or those materials.
The lien encumbers the owner's interest in the property until the debt is paid or the lien is discharged. In practical terms, an active mechanics lien can prevent the owner from selling or refinancing the property and can pressure the responsible party to resolve the underlying payment dispute. This makes the mechanics lien an essential remedy in the construction industry, where unpaid invoices are unfortunately common.
New York's Lien Law is intentionally broad in identifying who may claim a lien. Eligible parties typically include:
A critical requirement is that the work must have been performed or materials furnished with the consent of the owner. This consent can be express, as in a direct contract, or implied through the owner's knowledge and acquiescence to the improvement. Our attorneys evaluate the contractual chain and the owner's involvement to confirm your eligibility before filing.
Timing is the single most important factor in any mechanics lien matter. New York law imposes firm deadlines that vary depending on the nature of the property:
The clock runs from the date of the last substantial work—not minor punch-list or warranty corrections, which generally do not extend the deadline. Miscalculating this date is one of the most common reasons liens fail. Because the consequences of missing the deadline are severe and typically irreversible, it is essential to consult an attorney well before the filing window closes.
A mechanics lien in New York must satisfy specific statutory content and procedural requirements. The notice of lien must include, among other things:
The lien must be filed with the County Clerk in the county where the property is located—Manhattan (New York County), Brooklyn (Kings County), Queens, the Bronx, or Staten Island (Richmond County). After filing, the lienor must serve a copy of the notice of lien on the property owner within a strict statutory period, generally within five days before or thirty days after filing. Failure to properly serve the lien can terminate it. Our firm ensures every procedural step is executed correctly and documented.
A mechanics lien on private property is valid for one year from the date of filing. If the underlying debt is not resolved within that year, the lienor must take action to preserve the lien, either by commencing a foreclosure action or by filing an extension of lien with the County Clerk before expiration.
For private, non-residential property, the lien may generally be extended for additional one-year periods by filing the appropriate extension. For single-family dwellings, however, an extension typically requires a court order. Allowing a lien to lapse without action means losing the security it provides, so calendaring and managing these deadlines is critical. We track these dates carefully for our clients to ensure their rights remain protected throughout the dispute.
Filing a lien is only the first step. To actually collect, a lienor may need to enforce the lien by commencing a foreclosure action in court. A mechanics lien foreclosure is similar in concept to a mortgage foreclosure: the lienor seeks a judgment establishing the validity and amount of the lien and ultimately a sale of the property to satisfy the debt.
In practice, the threat of foreclosure—combined with the fact that the lien clouds the title and impedes financing—often motivates the responsible party to settle before a sale occurs. Foreclosure litigation also allows the lienor to assert related claims, such as breach of contract and unjust enrichment, and to seek the full value of the work performed. Our litigators handle every phase of lien enforcement, from drafting the complaint through trial and recovery.
Mechanics liens are not always valid, and property owners and general contractors frequently face liens that are exaggerated, untimely, or otherwise defective. New York law provides several mechanisms to challenge and remove an improper lien, including:
If a lien has been filed against your property or project, prompt action is essential. We evaluate the lien's validity, identify defects, and pursue the most efficient strategy to discharge or reduce it while protecting you from liability.
It is important to understand that you generally cannot file a mechanics lien against public property owned by the government. Instead, the New York Lien Law provides a separate remedy: a lien against the public improvement funds held by the public entity. Contractors and suppliers on public projects must follow distinct procedures and deadlines to assert a claim against those funds. Because public and private lien rules differ significantly, working with an attorney who understands both frameworks is essential to preserving your remedies.
Construction payment disputes involve overlapping deadlines, technical statutory requirements, and high financial stakes. Our firm brings deep knowledge of New York's Lien Law and extensive experience in construction litigation to every matter we handle. We represent owners, developers, general contractors, subcontractors, suppliers, and design professionals across all five boroughs of New York City.
When you work with our firm, we will:
Because mechanics lien rights are governed by strict deadlines, every day matters. Whether you are owed money for completed construction work or facing a lien that threatens your property, our experienced New York City mechanics lien attorneys are ready to help. Contact our firm today to schedule a consultation and learn how we can protect your interests and pursue the payment or relief you deserve.
You can contact us by phone at 212-233-1233 or by email at [email protected].