When a person becomes incapacitated and did not make any previous type of arrangement such as a living trust or a power of attorney, the court can be asked to appoint a Conservator to take care of the incapacitated person.
Also, in order to prevent abuses and mismanaging, the court requires periodic reports detailing the actions of the Conservator and sometimes to seek permission for major decisions such as selling real estate or terminating life support. Those are precautions in order to prevent abuse but also represent a lot of paperwork and potential headaches for the family of the incapacitated person.
That is why it is better to think ahead and execute a power of attorney or a living trust before a health crisis occurs, so families can avoid going through those difficult and highly regulated proceedings.
The Conservator will act until the Court issues an order ending the Conservatorship which happens when the Conservatee dies; when he no longer needs assistance; when his assets are used up if the Conservator was only dealing with financial affairs or when the Conservator resigns.