conservator

Definition from Nolo’s Plain-English Law Dictionary

Someone appointed by a judge to oversee the affairs of an incapacitated person. A conservator who manages financial affairs is often called a "conservator of the estate." One who takes care of personal matters, such as health care and living arrangements, is known as a "conservator of the person." Sometimes, one conservator is appointed to handle all these tasks. Depending on where you live, a conservator may also be called a guardian, committee, or curator.

Definition provided by Nolo’s Plain-English Law Dictionary.