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Property Insurance Mold Claim Guide for Marathon, Florida

8/25/2025 | 1 min read

Introduction: Why Mold Damage Claims Matter in Marathon

Few places in the United States expose homes to moisture like the Middle Keys. Marathon, Florida—a city stretched across 13 islands in Monroe County—faces year-round humidity, tropical downpours, and a lengthy hurricane season. These environmental realities make mold growth one of the most common and costly property insurance issues for local homeowners. Unfortunately, insurers often deny or undervalue mold damage claims, leaving policyholders to shoulder remediation bills that can easily exceed five figures.

This guide delivers a strictly factual, Florida-specific roadmap for policyholders who receive a property insurance claim denial for mold damage. It covers your legal rights under Florida law, common insurer defenses, the complaint process with the Florida Department of Financial Services (DFS), and when to engage a licensed Florida attorney. Wherever possible, citations to the Florida Statutes, Florida Administrative Code, and published court decisions are provided so you can verify every statement.

Understanding Your Rights in Florida

1. The Insurance Policy Is a Contract

Under Florida contract law, including principles described in Hernandez v. Travelers Indemnity Co., 855 So. 2d 842 (Fla. 3d DCA 2003), a property insurance policy is interpreted according to its plain language. Ambiguities are construed in favor of the insured. If your policy’s mold endorsement or exclusion is unclear, Florida courts generally resolve the doubt to benefit the homeowner.

2. Statutory Claim Handling Deadlines

Florida Statute § 627.70131(5)(a) requires an insurer to pay or deny a residential property claim within 90 days after the policyholder gives written notice. If an insurer misses this deadline without a reasonable explanation based on factors beyond its control, interest accrues on the claim amount.

3. Right to a Copy of the Adjuster’s Report

Florida Statute § 627.70131(2) entitles you to any detailed estimate of the loss, including engineering or hygienist reports, within 7 days of your written request to the carrier.

4. DFS Mediation and Appraisal

The DFS administers a Residential Property Mediation Program authorized by Fla. Stat. § 627.7015. Either party may invoke mediation after a denial or partial denial. The insurer pays the mediator fee, and participation is mandatory for the carrier if properly requested by the homeowner.

5. Fair Claims Practices Rule

Florida Administrative Code 69O-166.024 prohibits insurers from knowingly misrepresenting pertinent policy facts or failing to promptly settle claims in which liability is clear. Violations can result in administrative penalties and bolster a policyholder’s bad-faith argument under Fla. Stat. § 624.155.

Common Reasons Property Insurance Companies Deny Mold Claims

1. Exclusions and Sublimits

Many Florida homeowners policies exclude mold unless it results from a covered peril such as a sudden pipe burst or hurricane-driven rain. Even when covered, policies often impose a sublimit—frequently $10,000—citing standard ISO HO-3 endorsements. If your insurer limits payment under a mold sublimit, verify whether additional coverage was purchased or whether the mold resulted from an otherwise-covered water loss.

2. Gradual or Long-Term Damage

Insurers often assert that mold grew over weeks or months and therefore falls under a “maintenance” exclusion. Florida courts, such as in Citizens Prop. Ins. Corp. v. Munoz, 158 So. 3d 671 (Fla. 2d DCA 2014), analyze whether the initiating event was sudden and accidental. If you can pinpoint a specific water event—e.g., rain intrusion after Hurricane Irma in 2017—your chances of overcoming the denial improve.

3. Late Notice

Under § 627.70132, a claim stemming from hurricane or windstorm damage must be reported within three years after landfall. For non-hurricane events, most policies require “prompt” notice. Florida appellate courts (e.g., Public Health Trust v. State Farm, 695 So. 2d 480) hold that the insurer must still prove prejudice when arguing late notice.

4. Failure to Mitigate

Policies obligate homeowners to protect property from further damage, often requiring dry-out or temporary repairs. Yet Florida Farm Bureau v. Cummings, 66 So. 3d 337 (Fla. 2d DCA 2011) states that the duty to mitigate is limited by reasonableness and the policyholder’s means. Keep invoices and photos to rebut any claim that you failed to mitigate.

5. Disputed Cause and Origin

Insurers may hire hygienists or engineers who blame “pre-existing” moisture, defective construction, or improper HVAC maintenance. Under Florida’s Daubert standard, codified at § 90.702, these experts can be challenged if their methodology lacks peer-reviewed support.

Florida Legal Protections & Regulations

1. Homeowner-Friendly Statutes

  • Attorney’s Fees – § 627.428: When a policyholder prevails in a coverage dispute, the insurer must pay reasonable attorney’s fees. This fee-shifting provision balances the bargaining power between carriers and homeowners.

  • Bad Faith – § 624.155: After obtaining a favorable coverage judgment or settlement, you may pursue extra-contractual damages if the insurer engaged in bad faith claim handling.

  • Statute of Limitations – § 95.11(2)(e): A property insurance lawsuit must be filed within five years from the date the insurer breaches the policy (usually the denial date). For hurricane losses, § 627.70132 imposes a three-year notice window but not a separate lawsuit deadline.

2. DFS Oversight

The Florida Department of Financial Services licenses insurers and investigates consumer complaints. If you believe a mold claim was wrongfully denied, you can file a Consumer Complaint using DFS Form DFS–I0-0061 online or by calling 1-877-693-5236. DFS can compel the insurer to produce documents and may refer violations to the Office of Insurance Regulation (OIR).

3. Flood vs. Mold Damage Distinction

Because Marathon lies in FEMA Flood Zone AE and VE, some mold grows after storm surge. Remember that the National Flood Insurance Program (NFIP) generally covers mold only when caused by a covered flood and when you have tried to mitigate. Standard homeowners insurers often exclude flood-related mold.

4. Building Code Upgrades in the Keys

Monroe County enforces the Florida Building Code (FBC), High-Velocity Hurricane Zone (HVHZ) parameters. If mold remediation requires replacing drywall or insulation up to new moisture-resistant standards, your policy’s “ordinance or law” coverage (typically 10–25% of Coverage A) may apply.

Steps to Take After a Denial in Florida

1. Review the Denial Letter

  • Identify the specific policy provision cited—is it an exclusion, sublimit, late notice clause?

  • Check for compliance with § 627.70131(7), which obligates the insurer to state the facts and policy language supporting denial.

2. Gather Evidence

  • Photographs or video of mold, water staining, and mitigation efforts

  • Remediation invoices, moisture meter readings, and lab reports

Weather data (rainfall totals, hurricane tracks) from the National Hurricane Center

  • Maintenance records proving HVAC filter changes or roof inspections

3. Request the Claim File

Under § 627.4137, you may demand disclosure of all adjuster estimates, photographs, and expert reports within 30 days. Send a certified letter or email with read receipt.

4. Invoke DFS Mediation

Complete the DFS mediation request form and email it to [email protected]. Marathon homeowners may select a mediator familiar with Keys construction practices. The conference is usually held by Zoom or at a neutral site in Key West.

5. Consider Appraisal

Many policies contain an Appraisal Clause for disputes over the amount of loss (not coverage). Appraisal can move faster than litigation, but be wary: if the insurer denies coverage outright, appraisal may not determine causation of mold. Consult counsel before signing any appraisal agreement.

6. Provide a Civil Remedy Notice (CRN) for Bad Faith

Prior to filing a bad-faith action, § 624.155(3)(a) requires policyholders to submit a CRN through the DFS website, giving the insurer 60 days to cure the violation.

When to Seek Legal Help in Florida

1. Complex Causation or Large Loss

If mold remediation estimates exceed the policy sublimit or involve structural components (e.g., trusses, sheathing replacement), experienced counsel can coordinate expert microbiologists and contractors, preserving evidence and meeting court admissibility standards under Daubert.

2. Pattern of Delays or Misrepresentation

If the carrier repeatedly requests documents already supplied—a tactic prohibited by F.A.C. 69O-166.024(4)—legal intervention can expedite resolution.

3. Upcoming Statutory Deadlines

Once two or more years have passed since denial, strategic filing becomes urgent due to the § 95.11 five-year statute of limitations. Attorneys licensed by the Florida Bar can file suit in Monroe County Circuit Court (Sixteenth Judicial Circuit) or federal court if diversity exists.

Local Resources & Next Steps

1. Marathon Building Department

Before beginning remediation that involves structural work, contact the City of Marathon Building Department (305-743-0033) for permit requirements related to mold-damaged drywall removal and HVAC replacement. Compliance supports your coverage claim for ordinance or law benefits.

2. Monroe County Health Department

The branch in Key West offers mold safety brochures and can sometimes inspect severe infestations affecting habitability. Their findings can corroborate your claim file.

3. DFS Consumer Helpline

Call 1-877-693-5236 or use the online portal to track progress once a complaint is filed. DFS will assign you a complaint number (format: C-######-####).

4. Keep a Claim Calendar

Document every interaction with the carrier: date, name, summary, and promised action. This timeline often becomes Exhibit A in a lawsuit or mediation brief.

5. Free Legal Clinics

Legal Services of the Florida Keys occasionally hosts consumer rights clinics in Marathon’s public libraries. Availability depends on funding, so verify current offerings.

Legal Disclaimer

This article provides general information about Florida property insurance law and is not legal advice. Every claim is fact-specific. Consult a licensed Florida attorney to obtain advice tailored to your situation.

If your property insurance claim was denied, call Louis Law Group at 833-657-4812 for a free case evaluation and policy review.

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