From the bank perspective, it is a contract and brother is entitled to the money. In California, whether you have an enforceable claim to a portion of the funds turns on your mother's intent. If she added him only as a convenience to help her pay bills, without intending he was to keep anything left, then you may ha ve a case. Unfortunately, unless she signed a writing to that effect, or your brother openly admits that was the arrangement, proving it will be next to impossible.
Answered on Oct 24th, 2012 at 3:17 PM