Guardianship is one of the most consequential legal steps a Long Island family can take for a loved one who can no longer protect themselves. Whether you are caring for an aging parent in Garden City, a sibling with a developmental disability in Hempstead, or a minor who has inherited property in Great Neck, the rules — and the correct courthouse — change depending on who needs protection.
This FAQ, prepared by Morgan Legal Group and attorney Russel Morgan, Esq., answers the questions we hear most often from Nassau County families. For background, start with our Guardianship Overview. When you are ready for tailored advice, schedule a consultation.
Quick Reference: Which Court Hears Your Case on Long Island?
| Who needs protection | Governing law | Court (Nassau County) |
|---|---|---|
| An adult who has become incapacitated | MHL Article 81 | Supreme Court, Nassau County |
| A minor’s person or property | SCPA Article 17 | Nassau County Surrogate’s Court |
| A developmentally/intellectually disabled person (often a child turning 18) | SCPA Article 17-A | Nassau County Surrogate’s Court |
The single most common mistake families make is filing in the wrong court. Adult guardianship under Article 81 is heard in the Supreme Court — never the Surrogate’s Court.
Frequently Asked Questions
1. What is adult guardianship in New York, and which law governs it?
Adult guardianship of an incapacitated person is governed by New York Mental Hygiene Law (MHL) Article 81. It allows a court to appoint a guardian to make decisions about a person’s property, personal needs, or both, when that person can no longer do so safely. Article 81 is deliberately flexible: the court tailors the guardian’s powers to the individual’s actual limitations rather than applying a one-size-fits-all order. Learn more on our Article 81 Guardianship page.
2. Where do I file for adult guardianship on Long Island?
For an incapacitated adult who resides in Nassau County, you file in the Supreme Court, Nassau County — the Supreme Court located in Mineola. This is true even though many people associate “guardianship” with the Surrogate’s Court. The Surrogate’s Court handles minors (SCPA Article 17) and developmentally disabled individuals (SCPA Article 17-A), but not Article 81 adult cases. Filing in the wrong court causes costly delays.
3. What does the court have to find before appointing a guardian?
Under MHL Article 81, the petitioner must prove by clear and convincing evidence that the person — called the Alleged Incapacitated Person, or “AIP” — cannot manage their property and/or personal needs and is likely to suffer harm because they cannot adequately appreciate the consequences of that inability. This is a demanding standard. The court must also consider whether less restrictive alternatives would protect the person instead.
4. How does the Article 81 process actually work?
The case begins with an Order to Show Cause and a Verified Petition. The court then appoints a Court Evaluator — a neutral investigator who interviews the AIP, family members, and others, then reports back to the judge. The court frequently also appoints counsel for the AIP. The AIP has the right to be present and to a hearing. On Long Island, hearings are typically held at the Nassau County courthouse in Mineola. If guardianship is granted, the order spells out exactly which powers the guardian receives.
5. What is the “least restrictive alternative” requirement?
Article 81 requires the court to impose only the least restrictive intervention necessary. Rather than stripping away all of a person’s rights, the judge grants only the specific powers the person genuinely needs help with. The court may appoint a guardian of the personal needs, a guardian of the property, or both — and only over the areas where the AIP truly cannot function. A capable person should keep every decision they can still make safely.
6. How is guardianship of a minor or a disabled person different?
Two different tracks run through the Nassau County Surrogate’s Court:
- SCPA Article 17 governs guardianship of a minor’s person or property — common when a child inherits money or a parent is unavailable. See our Guardianship of Minors page.
- SCPA Article 17-A governs guardianship of a person with an intellectual or developmental disability, frequently sought as a child with a lifelong disability approaches age 18. Article 17-A applies a different, more plenary standard than Article 81 and must be supported by certifications from qualified professionals.
Both are filed in the Surrogate’s Court, not the Supreme Court.
7. What are a guardian’s ongoing duties after appointment?
An Article 81 guardian is accountable to the court for the life of the guardianship. Key duties include:
- Filing an initial report within 90 days of appointment.
- Filing an annual report every year thereafter.
- Visiting the incapacitated person at least four times per year.
- Acting in the person’s best interest and within the specific powers the order grants.
A guardianship generally lasts for the incapacitated person’s life unless the court terminates it because capacity is restored or circumstances change. For a full breakdown, see Guardian Duties.
8. Can I avoid guardianship altogether?
Often, yes — and Long Island courts strongly prefer it. Guardianship is a last resort. If your loved one still has capacity, they can put protections in place voluntarily, including:
- A durable Power of Attorney for financial matters (General Obligations Law §5-1513).
- A Health Care Proxy for medical decisions.
- A Living Trust to manage assets.
- A Supplemental (Special) Needs Trust to protect benefits eligibility.
- Supported Decision-Making arrangements.
Because these tools must be signed while the person still has capacity, families should act early. Explore options on our Alternatives to Guardianship page.
9. What happens if family members disagree about who should be guardian?
Disputes are common — for example, when adult siblings in different parts of Nassau County each believe they should serve, or when someone challenges whether guardianship is even necessary. These contested cases require evidence, testimony, and sometimes competing experts before the Supreme Court. The Court Evaluator’s report carries significant weight. If you anticipate conflict, review our Contested Guardianship page and seek counsel early.
10. How much does a Long Island guardianship cost, and how long does it take?
Costs and timelines vary with the complexity of the case, whether it is contested, and the size of the estate being managed. Court filing fees and related charges are set by the court and change periodically, so we do not quote fixed figures here — your attorney will confirm current amounts with the Nassau County clerk’s office before you file. An uncontested Article 81 matter often moves faster than a contested one, which can require extended hearings. The most reliable way to get an accurate estimate for your situation is a direct case review.
Speak With a Long Island Guardianship Attorney
Every guardianship turns on the specific facts — who needs protection, what they can and cannot do, and which Nassau County court has authority. Getting the court and the legal track right from the start protects your loved one and saves time and money.
Russel Morgan, Esq. and the team at Morgan Legal Group guide Long Island families through Article 81, SCPA Article 17, and SCPA Article 17-A proceedings. Schedule your consultation to discuss your family’s situation.
This page is general information, not legal advice. Always confirm current fees, filing requirements, and court details with the court or qualified counsel.
Further reading from Morgan Legal Group: New York elder-law planning.