Irrevocable v. Revocable Trusts
However, most people like to leave a little room to change their mind. As such, you may consider drafting a revocable trust. A revocable trust is a trust where the settlor retains the power to revoke. Since you must be alive to revoke any decision-making, you must have an Inter Vivos or "Living Trust" if you'd like to make the trust revokable. Pursuant to the California Probate Code, section 15400, a revokable trust is considered revocable by the settlor unless it is expressly made irrevocable by the trust instrument.
If you have further questions about trust drafting in California, you should consult with an experienced Los Angeles estate litigation lawyer.