A drywall subcontractor in Tampa completed $185,000 of interior work on a 42-unit condominium project. When the general contractor went bankrupt three months later, the sub tried to file a mechanics lien against the property. The clerk's office rejected it. The sub had never sent a Notice to Owner. Under Florida law, that meant the sub had zero lien rights -- $185,000 in completed work with no legal recourse against the property.

Florida's Notice to Owner requirement is one of the strictest preliminary notice statutes in the country. Miss it, and you cannot file a mechanics lien. Period. No partial recovery, no rolling window, no second chances.

This guide covers every step of the Florida Notice to Owner process -- who must send it, how to prepare it, and what GCs should do when they receive one.

What Is a Florida Notice to Owner?

The Notice to Owner (NTO) is a statutory document required by Florida Statute 713.06. It notifies the property owner, the general contractor, and the construction lender (if any) that a subcontractor, supplier, or other party is furnishing labor, services, or materials to their construction project.

The NTO is not a demand for payment. It is not a lien. It is a preservation document. Without it, parties who do not have a direct contract with the property owner cannot file a valid mechanics lien in Florida.

Florida calls this document a "Notice to Owner" rather than a "preliminary notice," but it serves the same function as preliminary notices in other states.

Who Must Send a Notice to Owner in Florida?

Florida Statute 713.06(2)(a) is specific about who must send notice:

Must send NTO:

Subcontractors (parties contracting with the GC, not the owner)
Sub-subcontractors (parties contracting with subcontractors)
Material suppliers (furnishing materials to any party on the project)
Equipment lessors (renting equipment used on the project)
Laborers employed by a subcontractor (not by the GC directly)

Exempt from NTO requirement:

The general contractor / direct contractor (party with a direct contract with the owner)
Laborers employed directly by the GC
Professional lienors (architects, engineers, surveyors) with a direct contract with the owner

The dividing line is contractual privity with the property owner. If you have a direct contract with the owner, you do not need to send NTO. Everyone else does.

The 45-Day Deadline

Florida gives claimants 45 days from their first furnishing of labor, services, or materials to send the Notice to Owner.

"First furnishing" in Florida means:

The first day a subcontractor physically performs work on the project site
The first day materials are delivered to the project site
The first day a supplier delivers materials that are incorporated into the project (not the order date, not the invoice date)

What "45 days" means:

Calendar days, not business days
Counted from the date of first furnishing, not from the contract execution date
The notice must be served (received by the owner) within the 45 days, not just mailed

Here is where Florida is unforgiving: if the notice is served on day 46, the claimant loses all lien rights for the entire project. Not just for the first 46 days of work -- for everything. There is no partial recovery window like California or Arizona offer.

Step-by-Step: How to Prepare and Send a Florida Notice to Owner

Step 1: Determine Your First Furnishing Date

Document the exact date your company first provides labor or materials to the project. This starts the 45-day clock. Keep delivery tickets, time sheets, or material receipts as proof.

Step 2: Gather Required Information

Florida Statute 713.06(2)(b) specifies what the NTO must contain:

Required Element	Where to Find It
Owner's name and address	County property records, Notice of Commencement, or GC
GC's name and address	Your contract, the Notice of Commencement
Lender's name and address (if any)	The Notice of Commencement
Description of project	Your contract or the Notice of Commencement
Description of labor, services, or materials	Your scope of work
Your name and address	Your company records
Name and address of your contracting party	The party who hired you

The Notice of Commencement is your best friend. Florida Statute 713.13 requires the owner to record a Notice of Commencement before construction begins. This recorded document contains the owner's name, GC's name, lender's name, surety information, and project description. It is recorded in the county where the project is located and is publicly accessible.

Step 3: Use the Statutory Form

Florida provides a statutory form in Section 713.06(2)(c). While not mandatory to use the exact statutory language, using it ensures compliance. Deviating from the statutory form creates grounds for the owner to challenge the notice's validity.

Step 4: Serve the Notice

Florida accepts the following service methods under Statute 713.18:

Certified mail, return receipt requested -- the most reliable method, provides proof of delivery
Personal delivery -- hand delivery with a signed acknowledgment
Statutory overnight delivery service -- FedEx, UPS, or similar with tracking

Regular first-class mail is not sufficient for initial service. If certified mail is returned unclaimed, follow-up service by regular mail to the same address is permitted under certain circumstances, but the initial attempt must be certified or personal.

Step 5: Serve All Required Parties

The NTO must be served on:

The property owner
The general contractor
The construction lender (if one is identified in the Notice of Commencement)

Missing any required recipient can invalidate the notice. If the Notice of Commencement lists a lender, send the NTO to the lender even if you do not think it is necessary.

Step 6: Retain Proof of Service

Keep certified mail receipts, return receipt cards, FedEx tracking confirmations, or signed acknowledgments. You will need this proof if you ever need to enforce lien rights. Without proof of timely service, the lien filing can be challenged and defeated.

What Happens If the Notice Is Late or Missing

The consequences under Florida law are absolute:

No NTO filed within 45 days = no lien rights. The subcontractor or supplier cannot file a mechanics lien against the property. Full stop.

No NTO filed at all = no lien rights. Same result.

NTO with incorrect information = potentially invalid. If the notice contains materially incorrect information (wrong owner, wrong property address, wrong project description), the owner can challenge its validity. Minor errors (a misspelled street name that does not cause confusion) may survive a challenge, but material errors will not.

NTO served on wrong parties = potentially invalid. If the notice goes to the owner but not the lender, and the lender is listed in the Notice of Commencement, the notice may be insufficient.

There is one narrow exception: if the owner fails to record a Notice of Commencement as required by Statute 713.13, subcontractors and suppliers may have extended time or modified requirements. But relying on the owner's noncompliance is a poor strategy.

How GCs Should Handle Florida Notices to Owner

General contractors in Florida receive NTOs from subcontractors and suppliers on every project. Here is the operational framework for managing them.

Track Every Notice

Maintain a project-level register of every NTO received. Record the party name, their contracting relationship (who hired them), the date received, and the described scope or materials.

Verify Against Your Subcontractor Agreements

When an NTO arrives from a material supplier, identify which subcontractor ordered those materials. Confirm the relationship. If a supplier sends notice for materials you did not authorize, investigate immediately.

Use NTOs to Build Your Lien Waiver Requirements

Every party that sends an NTO is a party from whom you should collect lien waivers before releasing payment. The NTO register becomes your lien waiver checklist.

Monitor for Missing NTOs

If a subcontractor has been on site for 30 days and has not sent an NTO, that sub is running out of time to preserve their lien rights. While this is the sub's problem, not the GC's, a sub without lien rights is a sub with less leverage -- and potentially less motivation to complete work if a payment dispute arises.

Cross-Reference NTOs Before Final Payment

Before releasing final payment or retainage to any subcontractor, verify that every party who sent an NTO related to that sub's work has provided a final lien waiver. Gaps between NTOs received and waivers collected represent active lien exposure.

Florida Notice to Owner vs. Other State Requirements

Florida's NTO is stricter than most states in two key ways:

Feature	Florida	California	Arizona
Deadline	45 days	20 days	20 days
Consequence of late notice	Total loss of lien rights	Partial loss (rolling window)	Partial loss (rolling window)
Service method	Certified mail or personal delivery	Any method reasonably calculated to deliver	Certified mail or personal delivery
Notice of Commencement required	Yes	No	No

Florida's longer deadline (45 days vs. 20) might seem more lenient, but the penalty for missing it is far harsher. California and Arizona allow late notice with reduced recovery. Florida allows no recovery at all.

Frequently Asked Questions

Can a Florida subcontractor send a Notice to Owner after the 45-day deadline?

Technically, you can send it, but it will not preserve your lien rights for work performed before the notice was served. Unlike California, Florida does not offer a rolling recovery window. Missing the 45-day deadline means forfeiting your ability to file a mechanics lien on that project entirely.

Does the general contractor need to send a Notice to Owner in Florida?

No. Under Florida Statute 713.06, the "contractor" (defined as the party with a direct contract with the owner) is exempt from the NTO requirement. The GC's lien rights derive directly from the contract with the owner. However, if the GC's contract is with a tenant or lessee rather than the property owner, the GC may need to send notice to the actual property owner.

What if the property owner never recorded a Notice of Commencement?

If no Notice of Commencement is recorded, the preliminary notice requirements are relaxed. Subcontractors and suppliers may still file liens without sending an NTO in some circumstances. However, the absence of a Notice of Commencement creates other complications for all parties, and it is rare on commercial projects where lenders require it.

Can a Notice to Owner be sent by email in Florida?

No. Florida Statute 713.18 requires service by certified mail (return receipt requested), personal delivery, or statutory overnight delivery. Email is not an accepted service method for the NTO. Sending the notice by email alone will not satisfy the statutory requirement.

What happens if the NTO has a minor error, like a wrong zip code?

Florida courts generally apply a "substantial compliance" standard. Minor errors that do not mislead the recipient (a transposed digit in a zip code, for example) typically do not invalidate the notice. However, material errors -- wrong property address, wrong owner name, wrong project description -- can render the notice invalid. When in doubt, correct and re-serve.

How does the Notice to Owner interact with Florida's Construction Lien Law amendments?

Florida's Construction Lien Law has been amended several times, most recently affecting electronic recording and Notice of Commencement requirements. The core NTO requirement under 713.06 has remained consistent: 45 days from first furnishing, sent to owner, GC, and lender. Subcontractors should verify current statutory language before relying on any historical guidance.

Florida Lien Compliance Should Not Be a Guessing Game

Every Notice to Owner you receive on a Florida project maps directly to a lien waiver you need to collect. Tracking one without automating the other means manual cross-referencing on every pay application cycle.

SubcontractorAudit connects your NTO register with your lien waiver workflow. When a noticed party has not submitted a waiver, the system flags it before you approve payment -- not after a lien hits the property.

Connect your NTO tracking to your lien waiver process