Legal Question in Wills and Trusts in California

No. Generally, there is no such requirement. Until then, it is revocable [unless it is irrevocable] and so it is not set and a Grantor [the person who set up the Trust] is not required to share it with anyone. There may be circumstances that would change this but based on this short question, the answer is no. FWIW, the Executor is one who carries out the terms of a Will, not a Trust.

Contact your local bar association for referral to an attorney who specializes in this. Often, but not always, the attorney will do an initial consultation free of charge. You will then be in a better position to determine what to do next. Best of luck to you!

The trustor can modify or change the trust during his/her lifetime, unless it's irrevocable, so why stir up a hornet's nest when it's not necessary to do so?