In Florida, the duty to warn is a legal obligation to alert someone about a foreseeable danger, and it falls most heavily on two groups: mental health professionals who learn a patient intends to hurt a specific person, and property owners who know about hidden hazards on their land. Employers handling hazardous chemicals carry a parallel federal duty. When any of them stays silent and someone gets hurt, the injured person can sue for negligence, but a 2023 overhaul of Florida tort law tightened both the filing deadline and the rules on how much fault a plaintiff can carry and still recover.
When Therapists Must Warn
Florida Statute 491.0147 keeps everything a patient tells a licensed therapist or counselor confidential by default. The exception is narrow. A professional may break confidentiality only when a patient makes a specific threat to cause serious bodily injury or death to a person the therapist can identify or readily locate, and the therapist judges that the patient has the apparent intent and the ability to carry out the threat right away.
General hostility doesn’t count. Venting doesn’t count. The threat has to be aimed at a specific person, and the clinician has to conclude the patient could act on it imminently.
When those conditions are met, the statute splits into two tracks. Contacting the potential victim directly is optional. Reporting the threat to a law enforcement agency is mandatory, and law enforcement is then required to take steps to prevent harm, including notifying the intended victim or seeking a risk protection order.1Florida Senate. Florida Code Title XXXII Chapter 491 Section 491-0147 – Confidentiality and Privileged Communications
That split matters. A therapist who warns the victim is exercising discretion. A therapist who fails to call law enforcement has violated a legal obligation.
Immunity for Reporting
A therapist who discloses a threat under either track is shielded from legal consequences. Florida law bars any lawsuit, criminal prosecution, or civil liability against the therapist based on the disclosure.1Florida Senate. Florida Code Title XXXII Chapter 491 Section 491-0147 – Confidentiality and Privileged Communications The immunity exists so clinicians don’t have to choose between a negligence claim for staying silent and a malpractice claim for breaching confidentiality. It only applies when the disclosure follows the statutory requirements. Sharing patient information outside those circumstances carries no statutory shield.
How HIPAA Fits
Federal health privacy law generally forbids disclosing protected health information without consent, but the HIPAA Privacy Rule includes an exception for serious and imminent threats. A covered provider may share information, including psychotherapy notes, when the provider has a good-faith belief that the disclosure is necessary to prevent or lessen a serious and imminent threat to someone’s health or safety and the disclosure goes to a person reasonably able to prevent or lessen that threat.2HHS.gov. Does HIPAA Permit a Health Care Provider to Disclose Information if the Patient Is a Danger
Florida’s statute is actually stricter. HIPAA permits disclosure; Florida requires it, at least to law enforcement. A Florida therapist who follows Section 491.0147 satisfies both the state obligation and the federal exception.
Property Owners and Visitors
A property owner’s duty to warn depends on why a person is on the land. Florida sorts visitors into three categories, and each triggers a different level of responsibility.
Invitees
An invitee is someone on the property for a purpose tied to the owner’s business: shoppers in a store, diners in a restaurant, patients at a medical office. Owners owe invitees the highest duty of care. They have to keep the premises reasonably safe and warn about any dangerous condition the owner knows about or should have discovered through a reasonable inspection. The qualifier is that the hazard isn’t open and obvious. A pothole hidden behind a display shelf needs a warning. A clearly visible curb does not.
Licensees
A licensee is a social guest or someone on the property with permission but not for the owner’s commercial benefit. A friend visiting your home. A neighbor cutting through your yard with your knowledge. The owner must warn licensees about known hidden dangers but has no obligation to inspect the property looking for hazards that haven’t been discovered. An invitee can argue the owner should have found a hazard; a licensee generally cannot.
Trespassers
Florida treats discovered and undiscovered trespassers differently. An undiscovered trespasser is someone whose presence the owner had no reason to know about. The owner’s only obligation is to avoid intentional misconduct. There is no duty to warn. A discovered trespasser is one the owner detected on the property, or was alerted to, within 24 hours before an accident. For discovered trespassers, the owner must avoid gross negligence and must warn of dangerous conditions the owner knows about but that are not readily observable.3The Florida Legislature. Florida Statutes 768.075 – Immunity From Liability for Injury to Trespassers on Real Property
Children and Attractive Nuisance
The trespasser rules bend for kids. When a property has an artificial condition likely to attract children too young to understand the risk, the owner can be liable for injuries even though the child was technically trespassing. Florida Statute 768.075 explicitly preserves this common-law doctrine.3The Florida Legislature. Florida Statutes 768.075 – Immunity From Liability for Injury to Trespassers on Real Property Swimming pools are the common example, and Florida’s Residential Swimming Pool Safety Act requires barriers, self-latching gates, and exit alarms. An owner who knows children are likely to wander onto the property has to take reasonable steps to eliminate the danger or protect those children, invitation or not.
Slip-and-Falls in Stores and Restaurants
Spilled liquids, fallen produce, and other temporary hazards in businesses are the most litigated duty-to-warn scenarios in the state. Florida Statute 768.0755 addresses these “transitory foreign substance” claims and puts the burden on the injured person.
To recover, the customer has to prove that the business had actual or constructive knowledge of the dangerous condition and should have taken action. Constructive knowledge can be shown with evidence that the hazard existed long enough that any reasonable business should have noticed it, or that the same type of hazard happened so regularly it was foreseeable.4The Florida Legislature. Florida Statutes 768.0755 – Premises Liability for Transitory Foreign Substances in a Business Establishment Just showing you fell on a wet floor isn’t enough. You need evidence the business knew or should have known.
How Owners Satisfy the Duty
Making a hidden danger obvious is the goal. A clear sign posted at the hazard is the most common method. Physical barriers like cones, ropes, or caution tape work when a sign alone wouldn’t catch attention. Verbal warnings are legally sufficient in some situations, though they’re harder to prove later. The warning has to match the hazard. A small “caution” sign at the entrance of a building does not adequately warn about a collapsed stairway in the back.
For a recurring problem, repair usually beats warning. A sign next to a permanently uneven floor may cut liability, but a jury will ask why the owner never fixed the floor. Courts look at what a reasonable owner would do, and reasonable owners fix problems when the cost of repair is modest relative to the risk of injury.
Employer Warnings About Chemical Hazards
Florida employers also fall under federal OSHA rules. The Hazard Communication Standard requires every employer using hazardous chemicals to maintain a written hazard communication program, label every container of hazardous material in the workplace, keep Safety Data Sheets accessible to employees during every shift, and train workers on the dangers of the chemicals they handle.5Occupational Safety and Health Administration. Hazard Communication Standard 29 CFR 1910.1200 Labels must be legible, in English, and displayed on each container or available in the immediate work area.
Training isn’t a one-time task. Employers have to provide it when a worker starts and again whenever a new chemical hazard enters the workplace. The training must cover how to detect the presence of hazardous chemicals, the health and physical risks of exposure, and the protective measures workers should use. An employer who falls short faces OSHA citations and fines, and an injured worker may use the failure as evidence in a personal injury claim.
Suing for Failure to Warn
A failure-to-warn case is a negligence claim. The injured person has to prove four things: that the defendant owed a legal duty to warn, that the defendant failed to fulfill that duty, that the failure directly caused the injury, and that the injury produced real damages. Damages typically include medical costs, lost income, and compensation for pain and suffering.
Every element has to hold. A property owner who knew about a hazard and said nothing clearly breached the duty, but the claim still fails if the injury would have happened regardless of a warning. A therapist who neglected to contact law enforcement about a credible threat has breached the statutory duty, but the plaintiff still has to show that timely reporting would have prevented the harm.
The 50 Percent Fault Bar
Florida rewrote its negligence framework in 2023, and the change cuts against failure-to-warn plaintiffs. The old rule was pure comparative negligence, which allowed partial recovery no matter how much of the fault lay with the injured person. That system is gone. Under Florida Statute 768.81(6), any party found more than 50 percent at fault for their own harm cannot recover anything.6The Florida Legislature. Florida Statutes 768.81 – Comparative Fault
In a duty-to-warn case, defendants will almost always argue the plaintiff should have spotted the danger. If a jury puts the plaintiff at 51 percent, the claim is worth zero no matter how negligent the defendant was. For injuries from obvious or semi-obvious hazards, this rule can decide the case. Medical malpractice claims are the exception; they still follow pure comparative negligence.
Deadline to File
The 2023 reform also shortened the clock. A negligence-based failure-to-warn claim now has to be filed within two years from the date the cause of action accrues, which is usually the date of the injury. This applies to actions accruing after March 24, 2023.7The Florida Legislature. Florida Statutes 95.11 – Limitations Other Than for the Recovery of Real Property Wrongful death claims arising from a failure to warn also carry a two-year deadline. Missing the deadline almost always means losing the right to sue. Courts rarely grant exceptions, and the two-year clock catches people off guard because the old four-year rule had been in place for decades. If you think you have a failure-to-warn claim in Florida, the filing deadline is the first thing to check.