A judge reviews documents at a courtroom bench while a petitioner sits with counsel during a Marchman Act hearing.

Florida Law Guide | Marchman Act & Guardianship

Understanding the Marchman Act: A Guide for Families Facing a Hard Decision

Robinson Casey focuses on Marchman Act petitions and guardianship matters for families across South Florida, including Miami-Dade, and statewide.

Why families contact Robinson Casey

Free

Initial consultation, confidential and with no obligation to continue

Statewide

Serving families across South Florida and statewide

(561) 849-4149

Call our office to discuss your family's situation

By Richard J. Casey III, Esq. · Published October 22, 2026

If you’re asking in which states the Marchman Act is implemented, the answer is Florida alone. Its petitions, hearings, and court orders run through Florida courts.

The Short Answer: The Marchman Act Is a Florida Law

The Marchman Act is Florida’s law for substance use impairment. Its official short title is the Hal S. Marchman Alcohol and Other Drug Services Act (Fla. Stat. § 397.301). Under Fla. Stat. § 397.301, this act may be cited as the “Hal S. Marchman Alcohol and Other Drug Services Act.”

The Florida Department of Children and Families also describes the Act as a tool for involuntary help for severely impaired adults and youth (Florida DCF, Marchman Act).

Robinson Casey limits its practice to Marchman Act petitions and guardianship matters. For the full overview, read our Marchman Act attorney guide.

If a family member's drinking or drug use has put their safety at risk, you don't have to work out Florida's court process alone. Our team is ready to talk it through with you. Talk it through with our team — the first consultation is free, confidential, and carries no obligation.

A close-up of a wooden gavel resting on a courtroom desk.

What the Marchman Act Covers Inside Florida

The Marchman Act lets certain people ask a Florida court for help when substance use impairs a loved one’s judgment or puts their safety at risk. For an adult, the petition may be filed by a spouse or legal guardian, any relative, a service provider, or an adult with direct personal knowledge of the impairment and prior treatment (Fla. Stat. § 397.68112).

The court looks at specific criteria.

The general sequence runs like this. The petition goes to the clerk in the county where the person is located, and the clerk cannot charge a filing fee for it (Fla. Stat. § 397.681). The respondent, the person named in the petition, has the right to counsel at every stage, which the respondent may waive if present and the court finds the waiver is made knowingly, intelligently, and voluntarily. The petitioner must prove the case by clear and convincing evidence (Fla. Stat. § 397.6957). If the court finds the conditions proved, it may order treatment for up to 90 days (Fla. Stat. § 397.697).

Involuntary commitment for addiction is part of our scope. The outcome depends on the facts of each case.

A common mistake is filing in the wrong county. Even so, as the court explained in J.P. v. J.N., filing the petition in the wrong county did not divest the circuit court in Putnam County of jurisdiction. Filing in the wrong county was a venue defect, not a loss of jurisdiction (J.P. v. J.N.).

Why a Florida Statute Does Not Carry Into Other States

A Florida statute applies within Florida’s courts. It does not decide cases in courts of other states. Each state writes its own laws on substance use treatment and civil commitment. Those laws use different names, standards, and procedures.

So a family whose loved one lives in another state faces that state’s rules. Florida’s Marchman petition process does not replace them.

Families should not assume the rules match across state lines. Check which law governs where the person actually lives.

How the Marchman Act Differs From the Baker Act

The Marchman Act covers substance use impairment, while the Baker Act covers mental health. The Baker Act is Florida’s Mental Health Act, and its official short title is “The Florida Mental Health Act” or “The Baker Act” (Fla. Stat. § 394.451). Under Fla. Stat. § 397.301, the law commonly called the Marchman Act may be cited as the “Hal S. Marchman Alcohol and Other Drug Services Act.”

Families often mix the two up. Both involve involuntary steps in Florida, and a loved one may have both a substance use disorder and a mental health condition. If, at any point during the hearing, the court has reason to believe the respondent, due to mental illness other than or in addition to substance abuse impairment, meets the involuntary commitment provisions of part I of Chapter 394 (the Baker Act provisions), the court may initiate involuntary examination proceedings under those provisions.

The label on the paperwork matters less than the facts behind it. The law that applies depends on what is happening with the person.

A judge's gavel rests beside documents being signed at a wooden desk.

Talking Through a Florida Situation With Robinson Casey

If you’re researching this for someone you love, you’re likely in a hard spot. Gathering facts is difficult when a family member’s safety is in question and every day feels urgent.

The decision in front of you is whether a Florida Marchman Act petition fits your loved one’s situation, whether in Miami-Dade or elsewhere in Florida. Richard J. Casey III, Esq. is the responsible lawyer for this page. Robinson Casey offers a free first consultation that is confidential and carries no obligation to continue. Call (561) 849-4149 or request a consultation at robinsoncasey.com/contact.

Frequently Asked Questions

In which states is the Marchman Act implemented?

The Marchman Act is cited as the “Hal S. Marchman Alcohol and Other Drug Services Act” in Fla. Stat. § 397.301. It applies in Florida courts only.

Is the Marchman Act a federal law?

No. It is a Florida statute, and its petitions and orders belong to Florida’s courts.

The information on this website is for general informational purposes only and does not constitute legal advice or create an attorney-client relationship. Results in prior cases do not guarantee similar outcomes in future matters. Please consult a licensed Florida attorney for advice specific to your situation. Robinson Casey, 6400 Congress Ave #2050, Boca Raton, FL 33487.

If someone is in immediate danger

A Marchman Act situation can involve urgent safety concerns. If a person is in immediate danger, contact emergency services first. Then call Robinson Casey at (561) 849-4149 to talk through the next steps.

Matters we focus on

Marchman Act Petitions

Guidance for families seeking court-ordered assessment and treatment for a loved one under Florida's Hal S. Marchman Alcohol and Other Drug Services Act.

Involuntary Commitment for Addiction

Help understanding how a Florida court handles involuntary commitment proceedings related to substance use, and what families may face along the way.

Emergency Temporary Guardianship

Support for families who need a court to act quickly to protect a person who cannot safely make decisions for themselves.

Plenary and Limited Guardianship

Guidance on guardianship options in Florida courts, from broad guardianship to more narrowly tailored arrangements.

How Robinson Casey works with families

Plain-language guidance

We explain Florida court processes in clear terms so you know what to expect at each stage.

Confidential first consultation

Your first consultation is free, confidential, and carries no obligation to continue.

Support for the whole family

Our team works with families dealing with the stress of a loved one's health, safety, and care.

Focused Florida practice

Robinson Casey focuses on Marchman Act and guardianship matters, so your case is handled within that focus.

Related practice areas

Call Now — Free Consultation (561) 849-4700