When is a power of attorney no longer valid?

• when it has been revoked,
• when the principal dies,
• when the parties relying upon the power are made aware that the power has been revoked or that the principal has died,
• at the time of expiration shown on the face of a written power,
• upon occurrence of any event of lapse or termination listed in its scope.

For example, "... provided, however, that such power shall terminate at noon on the date five years after its date of issuance, or immediately upon any attempt by the designated attorney-in-fact to subvert the purpose of this power, including but not limited to: transfer or hypothecation of the principal residence, violation of any state or federal law related to fiduciary duties, or furthering any wanton violence upon the person, mental state, or property of the principal."

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