Legal Question in Civil Litigation in Arizona

Although the reason for your desire to do this is absent, you clearly recognize that this is not a reasonable or necessary thing to do and I would certainly emphatically recommend against this.

Having said that, it is possible to create an irrevocable general power of attorney and it does exist in several, mostly business, relationships. Perhaps you might consider putting in a "sunset" clause by which the power would end after a certain period of time or create some other conditions that would trigger a termination of the power.