Cal. PROB § 2420

(a) Subject to Section 2422, the guardian or conservator shall apply the income from the estate, so far as necessary, to the comfortable and suitable support, maintenance, and education of the ward or conservatee (including care, treatment, and support of a ward or conservatee who is a patient in a state hospital under the jurisdiction of the State Department of State Hospitals or the State Department of Developmental Services) and of those legally entitled to support, maintenance, or education from the ward or conservatee, taking into account the value of the estate and the condition of life of the persons required to be furnished such support, maintenance, or education.

(b) If the income from the estate is insufficient for the purpose described in subdivision (a), the guardian or conservator may sell or give a security interest in or other lien on any personal property of the estate, or sell or mortgage or give a deed of trust on any real property of the estate, as provided in this part.

(c) When the amount paid by the guardian or conservator for the purpose described in subdivision (a) satisfies the standard set out in that subdivision, and the payments are supported by proper vouchers or other proof satisfactory to the court, the guardian or conservator shall be allowed credit for such payments when the accounts of the guardian or conservator are settled.

(d) Nothing in this section requires the guardian or conservator to obtain court authorization before making the payments authorized by this section, but nothing in this section dispenses with the need to obtain any court authorization otherwise required for a particular transaction.

(e) Nothing in this section precludes the guardian or conservator from seeking court authorization or instructions or approval and confirmation pursuant to Section 2403.