
Marchman Act Attorney | South Florida
Your Son Agreed to Rehab. What Happens If the Agreement Falls Apart?
Robinson Casey focuses on Marchman Act petitions and guardianship matters for families in Miami-Dade and across South Florida. Talk with our team about your options.
By Richard J. Casey III, Esq. · Published November 2, 2026
Your Son Said Yes, and the Fear Has Not Gone Away
Short answer: his yes may remove the need for a Marchman Act petition. It does that only if it becomes a real admission. Until an intake and a bed are confirmed, it is still just a promise.
Hearing yes after years of no brings relief. It can also feel fragile. You have paid for treatment, tried interventions and held firm on boundaries. Then came the overdose, the relapse, the hospital stay, the arrest or the night he disappeared.
Your fears are specific. You worry the yes will fade before a bed opens. You worry the next call will be about an overdose, a jail booking or him sleeping on the street. Those fears are reasonable, and they deserve a straight answer.
You are asking “adult son agreed to rehab do I still need marchman act,” and that is the right question. Richard J. Casey III, Esq. is the responsible lawyer for this page. Robinson Casey limits its practice to Marchman Act petitions and guardianship matters.
Your son said yes, but you don't yet trust that it will hold, and you don't have to work out the next step alone; talk with us about his situation. Talk it through with our team — the first consultation is free, confidential, and carries no obligation.

What a Voluntary Agreement Does and Does Not Settle
A voluntary admission is your son’s own choice to enter treatment. A Marchman Act petition is a court process used when the person does not agree. Florida law lets a person who wants substance abuse treatment apply to a provider for voluntary admission (voluntary admission statute).
The same law has a limit. A provider must admit a person who shows sufficient evidence of impairment, but only “within the financial and space capabilities of the service provider” and only when the person’s medical and behavioral conditions are not beyond the provider’s safe management capabilities. In plain terms, a yes does not create a bed. The provider still needs room.
So the agreement helps only if it turns into an actual intake, assessment and admission. Ask for specifics: a date, a facility name, an intake time and a person to call when he arrives. A promise to “go Monday” is not a signed admission.
Families often hear “he agreed” and stop there. Ask what happens after intake, and how long a bed will be held. Find out what happens if he leaves in the first hours.
You do not have to sort out every legal detail on your own before the next step. An early conversation can show which path fits your son’s facts.
Why a Verbal Yes Can Change Before He Reaches a Program
A verbal yes can change for ordinary reasons. Withdrawal is uncomfortable, and cravings do not wait for paperwork. An old friend or supplier may reappear. Someone at home may tell him he does not need help. Or the wait for an open bed stretches into days, and the plan starts to feel optional.
Start with a few steps for today. Get the intake date, time and address in writing. Decide how he will get there and who will drive. Keep his phone charged and reachable. Choose who will be at intake, and make sure that person knows the plan.
A yes given while he is high or in withdrawal may not hold once he is sober. Plan for a second conversation instead of treating the matter as settled. Keep your tone steady and free of blame. Calm, specific questions tend to work better than accusations. The goal is to make the next step easy to take.
If he walks away before intake, the situation changes fast. That is the moment when a petition question becomes real. It helps to know your options before the next call.
When a Marchman Act Petition May Still Be Needed
A petition may still be needed if he leaves before admission, refuses an assessment, or no program accepts him. It can also come up after a hospital discharge with no treatment plan. Our guide on hospital discharge with no plan covers that situation in more detail.
Florida law sets when a petition can be filed. A person may be the subject of one if he reasonably appears to meet the involuntary admission criteria. He may also qualify if he was placed under protective custody or had an emergency admission within the previous 10 days. He may also qualify if a qualified professional assessed him within 30 days (involuntary treatment statute).
One mistake families make is waiting for the agreement to hold before they check their options. Waiting can cost days, and days matter when someone is still using.
Whether a petition is needed depends on the facts of his situation, his current condition and where he is. An agreement that holds, with a confirmed admission, may reduce the need for court action. Do not rely on a verbal yes alone.
What a Marchman Act Petition Involves in Florida
The Marchman Act is Florida’s law for court-ordered assessment, stabilization and treatment of people with substance use problems. Under Section 397.601 of the Florida Statutes, a person who wishes to enter treatment for substance abuse may apply to a service provider for voluntary admission. A person meets the involuntary admission criteria when there is good faith reason to believe he is substance abuse impaired. (involuntary admission criteria)
Under that test, the impairment must have caused him to lose the power of self-control with respect to substance use. A second test looks at judgment. This second test applies when his refusal of services is based on judgment so impaired by reason of substance abuse that he is incapable of appreciating his need for care and of making a rational decision regarding that need for care. It is a separate alternative to the test that, without services, he is likely to suffer from neglect or refuse to care for himself, posing a real and present threat of substantial harm to his well-being. The statute adds that refusing services alone does not show his judgment is impaired.
The petition must name him and you, state your relationship, name his attorney if known, and set out the facts showing why he needs care (petition contents). It may include an assessment by a qualified professional done within 30 days before filing. If he refused assessment, the petition must say so.
Your facts carry the case. Dates, specific incidents and people who saw them matter. Our guide on evidence for an addiction petition explains what families gather.
Location matters too. The statute says a petition is filed with the clerk in the county where the person is located (jurisdiction statute). In one Fifth District case, the court held that a filing in the wrong county was a venue problem, not a loss of the court’s power (J.P. v. J.N. opinion).
Is the Marchman Act the Same as the Baker Act?
No. The Marchman Act deals with substance use. The Baker Act deals with mental health crises. The Florida Department of Children and Families describes Baker Act involuntary-examination criteria on its Baker Act page.
The Marchman Act starts with a court petition, which is why families weigh it against a voluntary admission. In one crisis, you may hear both names. The two laws run on different rules and different paperwork. Ask which law fits your son’s situation, since the answer shapes the next steps. If he has a co-occurring mental health disorder, the Marchman criteria mention that too (involuntary admission criteria).
Not sure what your next step is?
Talk it through with our team — the first consultation is free, confidential, and carries no obligation.
What Parents Often Ask About Filing
Filing is a serious step. Families weigh it against the facts in front of them, not in a single hour of panic. Our guide on parent liability when filing covers the legal details.
Bring these questions to a consultation: What happens if he leaves? How would a petition be filed? What could his next few days look like?
Adult son agreed to rehab, do I still need Marchman Act?
Maybe not, if the agreement becomes a confirmed admission. If it falls apart, a petition may still be an option.
Can a parent file a petition for an adult child?
Yes. Florida lists “any relative” among those who may file for an adult, and a parent is a relative (who may petition).
Does my adult son have to agree to be assessed?
Not beforehand, but an assessment is still required: he may not be ordered into treatment without a clinical assessment unless he is present in court and expressly waives it, and if he refused to be assessed and it reasonably appears he qualifies, the court shall issue an involuntary assessment and stabilization order (hearing statute).
Does my adult son have a right to a lawyer?
Yes. A respondent has the right to counsel at every stage of a judicial proceeding on a petition for involuntary treatment, though the respondent may waive that right if present and the court finds the waiver is made knowingly, intelligently, and voluntarily (right to counsel statute).
How long can a court order last?
A service provider may hold a person for up to 72 hours of observation, with listed exceptions (observation limit). If the conditions are expected to exist after 90 days, a renewal of the order may be requested before the 90-day period ends (court order statute).

Talk Through Your Son’s Situation With Robinson Casey
Right now your son has said yes. You do not fully trust that yes, and you do not yet know the next step. That gap is hard to carry alone. Robinson Casey limits its practice to Marchman Act petitions and guardianship matters, and it serves families across South Florida, Miami-Dade and statewide.
You came here asking “adult son agreed to rehab do I still need marchman act,” and that question deserves a direct answer. Bring the dates, what happened at the last crisis, and what he has agreed to. Bring the questions you wrote down late at night. No lawyer can promise how his situation will end, but you can bring the facts and the questions.
Your first consultation is free, confidential and comes with no obligation to continue. Call (561) 849-4700 or use the contact page to talk through his situation.
Why Families Contact Robinson Casey
A Focused Practice
Robinson Casey focuses on Marchman Act petitions and guardianship matters, so the questions you bring are the ones we handle every day.
Confidential Conversations
Your free first consultation is confidential, and you have no obligation to continue after it.
Support for Families
Our team works with families in Miami-Dade and South Florida through difficult decisions about a loved one's health and safety.
Direct Next Step
Call (561) 849-4700 to start the conversation. Richard J. Casey III, Esq. is the responsible lawyer for this page.
Do Not Wait Until the Next Crisis
An agreement to enter treatment can change quickly. If your son leaves a program, refuses to follow through, or the situation becomes unsafe, time matters. Speak with Robinson Casey early so you understand the options before you need them.
Matters We Handle
Marchman Act Petitions
Guidance on filing a petition when a loved one needs help with substance use and the family's options are unclear.
Involuntary Commitment for Addiction
Representation in proceedings to place an individual in treatment when voluntary care is not working.
Guardianship Matters
Help with guardianship petitions, including plenary, limited and mental health guardianship.
Emergency Temporary Guardianship
Guidance for families who need immediate court involvement to protect a person who cannot safely make decisions.
