Commercial Due Diligence in Florida: Phase I ESA, ALTA Survey, Zoning Letters and Estoppels

Commercial

Oct 22

Quick answer: Commercial due diligence comes down to a set of reports, each with its own professional and its own clock. To keep the CERCLA landowner defenses, the Phase I environmental site assessment must be conducted within one year before acquisition, with five components updated within 180 days, under the federal All Appropriate Inquiries rule at 40 CFR Part 312. The ALTA/NSPS survey follows the 2021 standards and needs the title commitment first. Zoning verification letters cost $200.00 in Port St. Lucie, $157.00 in Melbourne and $37.50 in Brevard County; the Fort Pierce, St. Lucie County and Palm Bay fees were not confirmed. The checklist below is the list I start from, and a Florida real estate attorney should run the contract side.

Once a commercial contract is signed in Fort Pierce or Melbourne, the inspection period, if the contract has one, starts running, and the buyer has to decide what to order and when. Each item below belongs to a professional in that field; my part is helping assemble the list and track the dates against the contract.

The Phase I ESA and the federal rule behind it

A Phase I Environmental Site Assessment exists because a buyer who wants the landowner liability protections under the federal Comprehensive Environmental Response, Compensation, and Liability Act, or CERCLA (the bona fide prospective purchaser, contiguous property owner and innocent landowner defenses) must complete "all appropriate inquiries" before buying. That rule is at 40 CFR Part 312, and EPA says ASTM E1527-21, and E2247-23 for forestland and rural property, can be used to satisfy it (EPA, page updated May 7, 2026). An environmental professional does or supervises the work and signs the report.

The inquiry must be done within one year before acquisition, and five components must be done or updated within 180 days before it: interviews with past and present owners, operators and occupants; the search for recorded environmental cleanup liens; the government records review; the visual inspection of the property and adjoining properties; and the environmental professional's declaration (40 CFR 312.20, current as of October 16, 2026). The buyer, not the consultant, is responsible for the cleanup lien search, disclosing specialized knowledge, considering whether the price reflects contamination, and commonly known information (312.22(a)). ASTM says the practice is designed to identify recognized environmental conditions and to reduce, not eliminate, uncertainty. The older E1527-13 was referenced only until February 13, 2024.

The ALTA/NSPS land title survey

A commercial lender or title insurer may require an ALTA/NSPS Land Title Survey rather than a boundary survey; ask before ordering. The 2021 Minimum Standard Detail Requirements took effect February 23, 2021, and a complete survey includes fieldwork, a plat or map, any Table A items the client requests and a certification to those standards. The surveyor needs the current record description, the most recent title commitment and the recorded adjoiner descriptions and easements, so order title first.

Table A is the menu of optional items, chosen by the client and negotiated with the surveyor. The ones most relevant to a commercial buyer are item 3 (flood zone), item 6 (zoning, taken from a zoning report the client provides), item 7 (building dimensions, footprint and height), item 11 (underground utilities, with the standard's own warning that without excavation their exact location cannot be accurately, completely and reliably depicted) and item 18 (plottable offsite easements). Wetlands are not a 2021 Table A item.

Zoning verification letters and what they cost locally

A zoning verification letter is the local government's written statement of a parcel's zoning district and future land use. It is not an approval for a business. Table A item 6 has the surveyor list zoning classification, setbacks, height and floor space limits and parking requirements from a zoning report or letter you provide, so a letter that states only the district and future land use will not cover item 6 on its own.

Jurisdiction	Fee	What I found
Port St. Lucie	$200.00, non-refundable	Zoning and future land use only; form revised October 1, 2026
Fort Pierce	Not confirmed	Form and fee schedule listed; fee not readable
St. Lucie County	Not confirmed	County pages did not load
Melbourne	$157.00	Fee schedule as of July 1, 2025
Brevard County	$37.50	Form revised July 2021 offers Zoning and Future Land Use, Setbacks, and Permitted Uses as checkable items
Palm Bay	Not confirmed	City pages did not load

Scope matters more than the fees: Port St. Lucie's letter confirms the district and future land use only, while Brevard County's form lets you check Setbacks and Permitted Uses, so ask the use question in writing wherever the form does not offer it.

Title and the Florida premium

The title commitment lists what the insurer requires before closing and what it will not cover. Florida's title insurance premium is set by rule. Under Rule 69O-186.003, the original owner's rate is $5.75 per $1,000 of liability up to $100,000, $5.00 per $1,000 from $100,000 to $1 million, $2.50 per $1,000 over $1 million up to $5 million, $2.25 per $1,000 over $5 million up to $10 million, and $2.00 per $1,000 above $10 million, with a $100 minimum. A reissue rate may apply when a qualifying prior owner's policy is on file, and a simultaneous loan policy has a $25 minimum for amounts up to the owner's amount. Search, examination and closing charges are separate from the premium.

Line	Amount	Basis
First $100,000 of a $2,000,000 owner's policy	$575.00	100 x $5.75
Next $900,000	$4,500.00	900 x $5.00
Next $1,000,000	$2,500.00	1,000 x $2.50
Owner's policy premium	$7,575.00	Sum of the three lines
Simultaneous loan policy, $1,400,000	$25.00	Minimum under subsection (5)
Hypothetical total premium	$7,600.00	Search, examination and closing charges extra

Estoppels, SNDAs and the tenants in place

If the property has tenants, their leases are part of what you are buying, and an estoppel certificate confirms them. An estoppel is a representation, as of a moment in time, of the status of the lease: that the named tenant is the current tenant, the lease is in full force, there is no default, no advance rent, no claim of offset and no bankruptcy. Lenders generally want estoppels dated no more than 30 days before closing (Williams Mullen, December 27, 2022). An SNDA (subordination, non-disturbance and attornment agreement) subordinates the lease to the new lender's lien, commits the lender not to disturb a tenant who is not in default, and has the tenant agree to become the tenant of a new owner after foreclosure.

Flood zone and NFIP limits

FEMA's Flood Map Service Center, the official public source for flood hazard information, takes an address. High-risk zones begin with A or V and are the special flood hazard areas; moderate to lower risk areas carry B, C or X; and a property in a high-risk zone with a government-backed mortgage must carry flood insurance (FloodSmart). For a non-residential building, National Flood Insurance Program coverage goes up to $500,000 for the building and $500,000 for contents, and a new policy takes effect 30 days after purchase unless an exception applies, such as a purchase tied to a mortgage.

Open permits, code liens and utility balances

Under s. 162.09, fines may run up to $250 per day for a first violation, $500 per day for a repeat violation and $5,000 for an irreparable one, and a county or city of 50,000 or more may raise those caps by supermajority ordinance to $1,000, $5,000 and $15,000. A recorded certified copy of the order is a lien on the land where the violation exists and on the violator's other property, and after 3 months unpaid the local attorney may foreclose, except on homestead property. Open permits are a separate search: Port St. Lucie's Building Department has an online permit search, and Brevard County has an online permitting portal. Melbourne has a municipal lien search form with no fee or scope stated, Brevard County's utilities lien inquiry covers utility balances only, and I found no code lien search service for Port St. Lucie, St. Lucie County or Brevard County, so ask the title agent what their search includes.

ADA and the fire inspection

Under Title III of the Americans with Disabilities Act, a business that serves the public is a public accommodation, and an existing facility must remove barriers where doing so is readily achievable, a continuing obligation. Offices, factories and warehouses that do not serve the public face only the new construction and alterations rules, which use the 2010 ADA Standards for projects permitted on or after March 15, 2012 (ADA.gov Title III primer, updated February 28, 2020). Where a leased space houses a public accommodation, both the landlord and the tenant are public accommodations, and the lease may allocate responsibility between them (28 CFR 36.201(b)).

Florida's fire code is the Florida Fire Prevention Code, adopted by the State Fire Marshal by rule every third year and incorporating NFPA 1 and NFPA 101 (s. 633.202). Local governments enforce it as the minimum code, existing-building provisions apply to buildings permitted before the current edition took effect, and for an existing building the local fire official first determines whether a threat to life safety or property exists (s. 633.208). Inspections are done by locally employed or contracted inspectors certified by the State Fire Marshal (s. 633.216), and the statute sets no frequency, so ask the local fire department for the last report and any open items.

The checklist

Title commitment with exception documents, ordered first.
ALTA/NSPS survey with the Table A items agreed with the surveyor.
Phase I ESA under ASTM E1527-21, dated against closing.
The buyer's own Phase I user responsibilities under 312.22(a).
Zoning verification letter, plus a written answer on the intended use.
FEMA flood zone and an insurance quote against the NFIP limits.
Permit history, code enforcement search and utility balances.
Tenant estoppels and SNDAs dated within the lender's window.
Accessibility review for a public accommodation.
Last fire inspection report and any open items.

What I could not confirm

Port St. Lucie's current planning fee resolution could not be read, so the $200.00 comes from the request form. The ASTM standard's user responsibilities section sits behind a purchase, so I describe the regulation on those points. Fire inspection frequency and local fire fees were not captured, and no turnaround times were published for the Brevard County letter or the Melbourne lien search.

Order title and the Phase I on day one, choose the Table A items before the surveyor goes out, and get the zoning use question answered in writing. The inspection period is only long enough if the sequence is right.

Questions buyers ask about commercial due diligence

How long is a Phase I ESA good for?

Under 40 CFR 312.20, all appropriate inquiries must be conducted within one year before acquisition, and the interviews, cleanup lien search, government records review, site visit and environmental professional's declaration must be done or updated within 180 days before acquisition.

Which Phase I standard applies now?

ASTM E1527-21, with E2247-23 for forestland and rural property. The older E1527-13 was referenced in the federal rule only until February 13, 2024.

What does the buyer have to do in a Phase I?

The buyer, as the user, is responsible under 40 CFR 312.22(a) for the environmental cleanup lien search, disclosing specialized knowledge, considering whether the price reflects contamination, and commonly known information. The consultant can help, but the responsibility stays with the buyer.

What does a zoning verification letter cost locally?

Port St. Lucie charges $200.00 for a letter covering zoning and future land use only, Melbourne charges $157.00, and Brevard County charges $37.50. Fort Pierce, St. Lucie County and Palm Bay fees were not confirmed.

What are the NFIP limits for a commercial building?

For a non-residential building, National Flood Insurance Program coverage goes up to $500,000 for the building and $500,000 for contents. A new policy generally takes effect 30 days after purchase, with exceptions including a purchase tied to a mortgage origination.

What is the Florida title premium on a $1,000,000 owner's policy?

At the original rate under Rule 69O-186.003, 100 x $5.75 plus 900 x $5.00, which is $575 plus $4,500, or $5,075. Search, examination and closing charges are separate, and a reissue rate may apply if a qualifying prior policy exists.

Talk with William. Under contract, or about to be? Send me the address and the contract's inspection period dates. I will help you build the diligence list for that property, line up the title, survey, environmental and zoning requests in the right order, and track the dates against the contract. Call or text (772) 800-2274 or send a message.

General information, not legal, tax, lending, insurance, survey, environmental or engineering advice. Local fees and forms change: the Port St. Lucie fee comes from a form revised October 1, 2026, the Melbourne fee is as of July 1, 2025, and the Fort Pierce, St. Lucie County and Palm Bay fees were not confirmed; the title rule text was read from a Cornell Law School copy. Confirm with a Florida real estate attorney, a licensed surveyor, an environmental professional, a land use attorney or planner, a licensed insurance agent and your lender. Statute and rule references are as reviewed on October 22, 2026. William Merchant, REALTOR®, RE/MAX Gold. Each RE/MAX office is independently owned and operated. Equal Housing Opportunity.

Sources

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William Merchant