In case law, a Power of Attorney (POA) is defined as a legal document in which one person (the principal) grants authority to another (the agent or attorney-in-fact) to act on their behalf in specified matters, such as financial, legal, or medical decisions. The scope and duration of the POA depend on its type (e.g., general, limited, durable, or springing) and the principal’s intent. A POA is typically revocable by the principal, provided the principal has capacity, and generally terminates upon the principal’s death.