Here is the sequence, in the order it happens. It looks bureaucratic because it is, and that is genuinely part of the point — a guardianship strips decision-making power from a person, so the process is designed to be checkable.
Step one: establish which proceeding
Article 81 for an adult who has lost capacity, in Supreme Court. Article 17-A for an adult with a lifelong developmental disability, in the Surrogate’s Court. Article 17 for a minor, in the Surrogate’s Court. Get this wrong and the filing is rejected, which usually costs weeks.
Step two: gather the evidence
- A physician’s report or capacity evaluation addressing the ability to manage affairs
- Functional detail: specific failures with dates, not conclusions
- Identification for the proposed guardian and the person under guardianship
- Any existing power of attorney, health care proxy, will or trust, and where the originals are
- Information about anyone likely to object, and their relationship to the person
The physician’s report should address financial and personal capacity specifically. A note that someone is “not doing well” is not what a court is asking for.
Step three: the petition and supporting affidavit
The petition asks the court for letters of guardianship and sets out who should serve and over what property. The supporting affidavit is where the evidence goes — this is the document that has to persuade a judge that a guardianship is necessary and that the proposed guardian is suitable. It should be candid about what the person can still do.
Step four: filing and service
The petition is filed with the county clerk’s office and then served on everyone entitled to notice — generally the person under guardianship, their spouse, parents, siblings and adult children. Service must be by a permitted method. This is where self-filed guardianship most often goes wrong: people serve informally, by handing something to a relative, and the petition is not properly before the court.
Step five: the hearing
If nobody objects, the hearing is short and the court is largely confirming the paperwork. The proposed guardian should still expect to answer questions about the person’s condition and about their own suitability. If there is an objection, the hearing becomes a trial and both sides put on evidence.
Step six: letters and the bond
If appointed, the guardian receives letters of guardianship and will generally need to post a bond, unless the court excuses it or the estate is small. The bond company wants to see the same evidence the court did.
Step seven: what the guardian does next
The work begins immediately, and it is detailed: inventory the property, secure the home and vehicles, deal with banks and benefits, obtain a court-specific identification number, and start the accounting. That first phase is covered in a separate article, because it is where guardians most often lose time.
If you are filing yourself
It is possible, and the forms exist. Whether it is wise depends almost entirely on one thing: whether anyone in the family disagrees. With agreement and clear evidence, self-filing can work. With a disagreement, the petition becomes litigation and the cost of getting it wrong is measured in both money and family damage. If you are unsure which you have, that is worth ten minutes on the telephone before you start.
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Guardianship · 3 minute read · Published September 11, 2025