California Code, Probate Code - PROB § 15644

When a vacancy has occurred in the office of trustee, the former trustee who holds property of the trust shall deliver the trust property to the successor trustee or a person appointed by the court to receive the property and remains responsible for the trust property until it is delivered. A trustee who has resigned or is removed has the powers reasonably necessary under the circumstances to preserve the trust property until it is delivered to the successor trustee and to perform actions necessary to complete the resigning or removed trustee's administration of the trust.