If John and Jane have a joint account, and Jane gives Sally her power of attorney, there are now three people who can sign checks on the account. Sally is supposed to be acting on Jane's behalf, but John needs to have faith in Sally's judgment, too.
If John passes away, Jane becomes the sole owner of the account, and Sally's still her attorney-in-fact.
If instead Jane passes away, John becomes the sole owner of the account, and Sally's power of attorney is void at the moment of Jane's demise.
_________________________
John S. Burnett
BankersOnline.com
Fighting for Compliance since 1976
Bankers' Threads User #8