Resigning as a power of attorney is typically something that can be accomplished by informing the principal that you don't want the appointment anymore and also then providing them written notice of your resignation (be sure to keep a copy, and proof of service/mail).
Create a Revocation Document: Draft a written statement that explicitly revokes the Power of Attorney. This document should include your name, the name of your agent, the date the original POA was executed, and a clear statement that you are revoking the authority granted by that document.
A principal can revoke a POA simply by telling the agent that they don't wish for them to retain power of attorney in front of witnesses. However, a verbal revocation can leave the matter open to question or interpretation.
Create a Revocation Document: Draft a written statement that explicitly revokes the Power of Attorney. This document should include your name, the name of your agent, the date the original POA was executed, and a clear statement that you are revoking the authority granted by that document.
What a power of attorney can't do Change a principal's will. Break their fiduciary duty to act in the principal's best interests. Make decisions on behalf of the principal after their death. (POA ends with the death of the principal. Change or transfer POA to someone else.