An individual that receives a court order to act on a resident's behalf is known as a:

An individual who receives a court order to act on a resident's behalf is identified as a guardian. Guardianship is a legal arrangement where a court appoints someone to make decisions for another person who is unable to make those decisions themselves due to reasons such as incapacity or disability. This role is often comprehensive, encompassing various aspects of the individual's life, including health care, finances, and living arrangements, as determined by the court.

In contrast, the other options refer to different legal instruments that do not involve a court order. A Power of Attorney allows someone to designate another person to make decisions on their behalf, but it is typically established through a signed document rather than a court's determination. A Durable Power of Attorney is similar but remains effective even if the principal becomes incapacitated. A Medical Power of Attorney specifically pertains to health care decisions and, like the general Power of Attorney, is not court-ordered. Thus, these alternative options lack the legal backing that comes with a guardian role as dictated by a court order.