Choosing the court and the type of petition
For an adult with functional limitations, the petition usually goes to Supreme Court; for an adult with an intellectual or developmental disability, Surrogate's Court may be the forum; for a minor, Family Court or Surrogate's Court. Each has its own forms and practices, and some counties have dedicated guardianship parts. The petition has to describe the person's situation in concrete terms and connect it to the powers you are asking for. Filing in the wrong forum or asking for the wrong scope can cause delay.
Evidence and notice
Judges look for specific examples rather than general statements: missed medications, unpaid rent, a recent financial loss, or unsafe living conditions. Medical or psychological records support those examples. The person who is the subject of the petition must receive notice and has the right to participate, and relatives and others with an interest generally must be notified as well. Hearings in adult cases can be scheduled on a compressed timetable, so witnesses and records should be ready when the petition is filed. Petitioners are often asked to testify, so expect to explain in your own words what you have seen.
Temporary and emergency relief
When something urgent is happening, such as an imminent eviction or money being drained from an account, the court can sometimes appoint a temporary guardian for limited purposes while the case is pending. That request needs a clear showing of urgency. In our first meeting we review what has happened, what documents already exist, and whether an alternative such as an existing power of attorney could resolve the problem faster. Then we map out the filing and the people who will need to be served. Court-appointed evaluators and counsel add costs, and in many cases those costs can be paid from the person's own funds.