California Code, Family Code - FAM § 1103

(a) Where one or both of the spouses either has a conservator of the estate or lacks legal capacity to manage and control community property, the procedure for management and control (which includes disposition) of the community property is that prescribed in Part 6 (commencing with Section 3000) of Division 4 of the Probate Code.

(b) Where one or both spouses either has a conservator of the estate or lacks legal capacity to give consent to a gift of community personal property or a disposition of community personal property without a valuable consideration as required by Section 1100 or to a sale, conveyance, or encumbrance of community personal property for which a consent is required by Section 1100, the procedure for that gift, disposition, sale, conveyance, or encumbrance is that prescribed in Part 6 (commencing with Section 3000) of Division 4 of the Probate Code.

(c) Where one or both spouses either has a conservator of the estate or lacks legal capacity to join in executing a lease, sale, conveyance, or encumbrance of community real property or any interest therein as required by Section 1102, the procedure for that lease, sale, conveyance, or encumbrance is that prescribed in Part 6 (commencing with Section 3000) of Division 4 of the Probate Code.