
Marchman Act Attorney | South Florida
Understanding the Florida Marchman Act Petition Standard
Robinson Casey focuses on Marchman Act and guardianship matters for families in Miami-Dade, South Florida and across Florida. Here is how the petition standard works and how we can help you take the next step.
By Richard J. Casey III, Esq. · Published October 30, 2026
A Marchman Act petition asks a Florida court to order assessment, stabilization and, if the court finds it necessary, treatment for an adult impaired by substance abuse. This guide walks through the Chapter 397 process in plain language, so you can see how it works.
The Marchman Act Petition Rules in Chapter 397
The rules are not in one place. They are spread across several sections of Chapter 397.
Who can file? For an adult, Fla. Stat. § 397.68112 allows a spouse or legal guardian, any relative, a service provider, or an adult with direct personal knowledge of the impairment and of the person’s prior course of assessment and treatment to file. The petition goes to the clerk of the court in the county where the person is located, under Fla. Stat. § 397.681. The clerk may not charge a fee to file it.
Other sections cover the rest of the path. Fla. Stat. § 397.68141 lists what the petition must contain. For the full overview, read our Marchman Act attorney guide.
Call (561) 849-4149 for a free, confidential first consultation. Talk it through with our team — the first consultation is free, confidential, and carries no obligation.

What the Court Needs to Find
The petitioner must prove the case by clear and convincing evidence. That burden falls on the person who files, under Fla. Stat. § 397.6957. The petitioner must show the person is impaired and has a history of not following treatment.
The petitioner must also show the person is unlikely to take part voluntarily, or cannot decide whether help is needed. Without services, the respondent must be likely to neglect himself or herself, that neglect must pose a real and present threat of substantial harm, and there must be a substantial likelihood of serious bodily harm in the near future, as shown by recent behavior; alternatively, the refusal must rest on judgment so impaired that the respondent cannot appreciate the need for care.
The statute also says mere refusal to accept services does not, by itself, show lack of judgment, under Fla. Stat. § 397.675. Families should expect the court to ask whether willing, able family or friends could prevent the harm.
What a Petition Must Say
A petition must name the respondent and the petitioner. It must explain how they are related and name the respondent’s attorney if known. Fla. Stat. § 397.68141 requires these details.
The factual allegations are the heart of the petition. They must state why you believe the person is impaired. They must also state why you believe impairment has taken away self-control.
The petition must also explain the harm. It must say why you believe the person has hurt or may hurt themselves or others. Or it must say why refusal rests on judgment too impaired to see the need for care.
In an emergency, the petition must describe the exigent circumstances. It must also ask for an ex parte assessment and stabilization order. A report from a qualified professional who examined the person within 30 days can accompany the petition.
Judges read for facts, not labels. For example, “He is an addict” says far less than “On March 3 he left the stove on, skipped meals for four days, and refused the doctor who came to the house.” Keep a simple log of dates, messages and incidents.
How the Court Reviews the Petition
The court must schedule a hearing within 10 court working days, unless a continuance is granted. A copy of the petition and notice of the hearing goes to the respondent, the respondent’s parent, guardian, or legal custodian if the respondent is a minor, the respondent’s attorney if known, the petitioner, the respondent’s spouse or guardian if applicable, and any other persons the court directs, under Fla. Stat. § 397.68151.
A respondent who wants a lawyer and cannot afford a private one has the right to court-appointed counsel, under Fla. Stat. § 397.681.
In an emergency, the court may rely only on the petition. It may enter an ex parte order without appointing an attorney, under Fla. Stat. § 397.6818. At the hearing, testimony is under oath and recorded, and the court hears relevant family testimony.
Fifth District law adds a rule on the petitioner’s role. With the petitioner absent, the court may not call and question the professional to supply the petitioner’s case, per C.W.R.K. v. Stewart Marchman Act Behavioral Healthcare. The Fourth District reached a different result in J.J.J. v. D.G., so this rule is not settled statewide. The court’s findings decide the outcome.
Assessment and Stabilization Versus Treatment
An emergency order for assessment and stabilization comes first. A treatment order comes only after a hearing. The court may direct a law enforcement officer to take the person into custody for evaluation, under Fla. Stat. § 397.6818.
A provider may hold the person for no more than 72 hours of observation. The statute lists exceptions, including a court-granted extension after hearing. Withdrawal, medical needs, and weekends or holidays can also extend the time.
An ex parte order that is not executed by the initial hearing date is deemed void. If the person has not been assessed within 90 days, the court must dismiss the case.
Treatment is different. The treatment stage has its own findings and its own time limits.
Marchman Act Versus Baker Act
The Marchman Act covers substance abuse impairment. Part I of chapter 394, known as the Baker Act, covers mental illness. If at any point during the hearing the court has reason to believe that the person, because of mental illness other than or in addition to substance abuse impairment, meets the involuntary commitment provisions of part I of chapter 394, it may start involuntary examination proceedings under those provisions.
The Marchman standard also reaches a person with a substance use disorder and a co-occurring mental health disorder, under Fla. Stat. § 397.675. So one person’s situation can involve both laws.
Which path fits depends on the facts. Your family’s account of recent events will shape how the court sees the case.
Not sure what your next step is?
Talk it through with our team — the first consultation is free, confidential, and carries no obligation.
How Long an Order Lasts and Whether a Petition Can Be Dropped
A treatment order can last up to 90 days. A renewal petition must be filed with the court before the court-ordered services period expires, and if the renewal is granted, the court may order up to an additional 90 days of involuntary treatment services.
A person can be released early. That happens when the person no longer meets the criteria for involuntary admission and gives informed consent to transfer to voluntary treatment status, or when the person no longer needs treatment services.
Whether a petition can be withdrawn depends on the stage of the case. Once a treatment order is entered, the court keeps jurisdiction for further orders and compliance monitoring, under Fla. Stat. § 397.697. Questions about challenging an order are covered in our guide on appeals.
Frequently Asked Questions
How long does a Marchman Act treatment order last in Florida?
A treatment order can last up to 90 days. A renewal can add up to another 90 days.
Does the respondent have a right to a lawyer?
Yes. The respondent has the right to counsel at every stage, but may waive that right if present and the court finds the waiver is knowing, intelligent, and voluntary. A respondent who wants a lawyer and cannot afford one has the right to court-appointed counsel.
Does filing a Marchman Act petition cost a fee at the clerk’s office?
No. The clerk may not charge a fee to file the petition.

Talking Through Your Situation With Robinson Casey
Reading a statute while someone you love is in crisis is hard. You may feel the decision is urgent and that you are carrying it alone. If your loved one refuses care or puts themselves in danger, the next step can feel impossible to choose.
For the conversation itself, our guide on what to say to an adult child who is struggling may help.
Robinson Casey limits its practice to Marchman Act petitions and guardianship matters, serving families across South Florida and statewide. Richard J. Casey III, Esq. is the responsible lawyer for this page.
Call (561) 849-4149 or use our contact page to talk through your situation. Your first consultation is free, confidential, and comes with no obligation to continue.
Why Families Contact Robinson Casey
A Focused Practice
Our practice focuses on Marchman Act petitions and guardianship matters, so our work centers on these proceedings.
Clear Explanations
We walk you through the petition standard, the court process and what each step means for your family.
Support for Families
Our team works with families across South Florida and statewide through sensitive and stressful situations.
Confidential Consultation
Your first consultation is free, confidential and comes with no obligation to continue.
Act Promptly, Ask Questions Early
Marchman Act and guardianship proceedings can move quickly. Speaking with a lawyer early helps you understand the process, the paperwork involved and the questions the court may ask.
Matters We Handle
Marchman Act Petitions
Guidance on petitions for involuntary assessment and treatment for substance use under Florida law.
Involuntary Commitment for Addiction
Representation in proceedings seeking court-ordered treatment for a loved one struggling with addiction.
Guardianship Matters
Help with plenary, limited and mental health guardianship petitions for adults who need court-supervised decision-making support.
Emergency Temporary Guardianship
Assistance with urgent guardianship petitions when a person needs immediate protection while the court considers the case.
