Answer:
I see a third issue. Even if the POA is genuine, if you allow the sister who is the attorney-in-fact to take the check and deposit it into an account other than an account owned by the principal, you could be deemed to be on notice of breach of fiduciary duty and could be liable to the principal for his loss, assuming he never gets the benefit of the proceeds of the check.
First published on BankersOnline.com 5/06/02