Legal Question in Wills and Trusts in California

Your email implies that your father is incapacitated because otherwise you can get the information you want directly from your father. If this is the case, then your brother is more likely than not the trustee of the trust as a result of your father's incapacity, and that means he can spend trust funds on an attorney to represent him in his capacity as trustee. And, at least on the surface, assuming for the sake of argument that he's not doing anything wrong, he doesn't have to provide you with any information while your father is alive concerning the trust, as your right to information and an accounting begins only upon your father's death. The two exceptions to this is 1) if the trust is an A/B trust in which part of the trust became irrevocable upon your mother's death, or 2) you obtain a court order compelling the trustee and agent to provide an accounting (although you may have to be appointed as your father's conservator to do this).

You should consult your own lawyer about this.