An attorney-in-fact is a person who holds authority to act on behalf of another under a Power of Attorney. The signature of the attorney-in-fact may be relied upon with the same legal authority as though the signature had been placed by the principal who granted the authority. Powers of Attorney usually present in two common forms: a General Power of Attorney conveys authority over a broad range of activities, whereas a Special Power of Attorney is specific to duties associated with a particular property or transaction. As such, a Special Power of Attorney is the form most commonly used in real estate transactions.