(a) In this section, “trustee” includes any escrowee, agent, attorney, representative, or fiduciary.
(b) If any person holds or takes title to property in the capacity of trustee and the beneficiary is not designated in the instrument by which the trustee takes title or in another instrument signed by the grantor and previously recorded, then the trustee and his personal representative have the power to grant, encumber, or otherwise dispose of the property, except to the extent the power is limited by the term of the grant to the trustee or in another instrument signed by his grantor and previously recorded, unless an instrument signed by the trustee which designates the beneficiary is recorded prior to disposition by the trustee.