If a person is deemed medically incompetent, but there has..
A: Whether the person can still make a valid power of attorney depends on a number of facts. The standard for the necessary mental capacity is the same as that required to make a legal contract. Basically, a person must be able to understand the nature of the transaction and its effect upon his or her rights and interests. So when making a power of attorney, a person must be able to comprehend that another individual is being authorized as an agent to take over managing and controlling financial or medical matters. Generally, the issue of mental competence comes up only when someone questions or challenges an...