California Code, Probate Code - PROB § 2313

Except in temporary conservatorships, a conservator of the estate shall record a certified copy of the letters with the county recorder's office in each county in which the conservatee owns an interest in real property, including a security interest. The conservator shall record the letters as soon as practicable after they are issued, but no later than 90 days after the conservator is appointed. A temporary conservator of the estate may record the letters if the conservator deems it appropriate.