Jul 01, 2015 - 05:48 AM
I am only a New York attorney so if you are from another state, the rules may be different, however, a power of attorney stays valid until revoked or the principal dies. Also you have to read the document to see if there is an limiting language. However, standard in many powers of attorney is the phrase, "I revoke all prior powers of attorney". If your mom ever signed another then the old one is no good.