A court transferring legal decision-making for an adult who cannot make decisions themselves - the most restrictive option, and often not the necessary one.
When an adult can no longer make decisions about their own care or finances, a court can appoint someone to make those decisions for them. Terminology splits by state and by subject: guardianship commonly covers decisions about the person - where they live, medical treatment, daily care - and conservatorship commonly covers property and finances. Some states use one word for both, and some reverse them.
This is a substantial legal step and courts treat it as such, because what is being transferred is the right to decide. The process generally requires a petition, formal notice to the person concerned, medical or expert evidence of incapacity, an opportunity for that person to appear and object, often a court-appointed representative for them, and a hearing. Once appointed, the guardian or conservator is a fiduciary: they must act in the person's interests, keep the money separate from their own, and account to the court periodically.
The most important practical point is that it is frequently avoidable. A durable power of attorney and an advance directive, put in place while the person still has capacity, can cover most of the same ground without a court case - which is a large part of why those documents exist. Guardianship is what happens when nothing was arranged in advance, or when what was arranged does not reach the problem. Many states now also require the court to consider less restrictive alternatives first, and to limit the order to the decisions the person actually cannot make rather than removing all of them.
Two quite different situations bring people here. The first is a family trying to arrange care for a relative who has lost capacity, where the useful question a lawyer answers first is whether guardianship is needed at all or whether a less restrictive route still exists. The second is a person contesting a petition brought about them, or a family member concerned that an existing guardian is not acting properly - and that person has a right to be heard, to be represented, and in most states to ask the court to review or end the arrangement. Legal aid and adult protective services programmes take both kinds.
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