Completing construction work and not getting paid is one of the most damaging things that can happen to a contractor or subcontractor. Florida law provides a powerful tool to protect against that outcome: the mechanics lien. But lien rights come with strict procedural requirements and unforgiving deadlines. Understanding how the process works, and following it correctly from the beginning of a project, is what separates contractors who collect from those who do not.
What a Mechanics Lien Is and Why It Carries Weight
A mechanics lien is a legal claim against real property for unpaid labor, materials, or services furnished to improve that property. Under Chapter 713 of the Florida Statutes, contractors, subcontractors, sub-subcontractors, laborers, and certain material suppliers who furnish work or materials to a construction project have the right to lien the property if they are not paid.
The power of a lien comes from the fact that it attaches to the property itself, not just to the party who owes the money. If the property is sold, refinanced, or transferred, the lien must generally be resolved first. That gives a lienholder leverage that an ordinary breach of contract claim does not provide on its own.
For property owners and developers, this also means that failing to ensure payment flows properly down the chain — from owner to general contractor to subcontractors and suppliers — can result in the property being encumbered by claims from parties the owner may have never dealt with directly.
The Notice to Owner Requirement: A Deadline Most Parties Miss
Before a lien can be filed, most parties below the general contractor must take a preliminary step: serving a Notice to Owner. This is a written notice to the property owner, and in certain cases to the general contractor and construction lender, advising them that the party is furnishing labor, materials, or services to the project.
The Notice to Owner must be served no later than 45 days after the party first furnishes labor or materials. This deadline is absolute. Missing it does not create a procedural problem that can be corrected later. It eliminates lien rights for work performed before the notice was served.
General contractors with a direct contract with the owner are not required to serve a Notice to Owner. For subcontractors, sub-subcontractors, and suppliers, this preliminary notice is a non-negotiable prerequisite. Many parties lose lien rights not because of anything that went wrong on the project, but because they failed to serve this notice at the outset. It should be standard practice on every job, sent immediately after mobilization.
Filing the Claim of Lien: Deadlines and What Must Be Included
After completing work or furnishing final materials, a contractor or subcontractor who has not been paid must file a Claim of Lien with the clerk of court in the county where the property is located. The Claim of Lien must be filed within 90 days of the claimant’s last day of work or last delivery of materials to the project.
The 90-day window is not negotiable. Courts do not extend it for oversight, good-faith negotiations, or anything else. When the window closes, the right to lien is gone.
The Claim of Lien must include specific information: a description of the property, the name of the owner, the name of the party who hired the claimant, the amount due, and a description of the labor or materials furnished. After filing, the lien must be served on the property owner within 15 days.
Filing the lien is not the finish line. It opens an enforcement window. A recorded lien must be backed by a foreclosure lawsuit filed within one year of the recording date. Failing to bring that action within the deadline renders the lien unenforceable, regardless of how valid the underlying claim is.
Why Documentation Either Supports or Kills a Lien Claim
Lien rights are only as strong as the records behind them. Contractors and subcontractors who want to use the lien process effectively need to maintain clear documentation throughout the project, not at the end when a dispute surfaces.
That means keeping contemporaneous records of work performed, materials delivered, pay applications submitted, and payment communications. It means tracking Notice to Owner deadlines by project. It means knowing precisely when the last day of furnishing work occurred on a given job, because that date starts the 90-day clock. Contractors who treat this as a paperwork burden tend to find themselves without the records they need when a dispute arises. Those who treat it as a business standard have a meaningful advantage when payment problems emerge.
Conclusion
Florida’s mechanics lien law gives contractors, subcontractors, and suppliers a serious mechanism to recover unpaid amounts, but only if the procedural steps are followed correctly and on time. The deadlines are strict, the notice requirements are specific, and a missed step early in a project can eliminate rights that would otherwise be available. Building these practices into your project workflow before a dispute arises is far more effective than trying to reconstruct compliance after a project has gone sideways.
If you are dealing with nonpayment on a construction project, or you want to strengthen your payment protection practices going forward, our attorneys can help you understand your options and navigate the process. Given the time-sensitive nature of lien rights, speaking with an attorney as early as possible is strongly advisable.