California Code, Civil Code - CIV § 2924.1

(a) Notwithstanding any other law, the transfer, following the sale, of property in a common interest development, as defined by Section 1351, executed under the power of sale contained in any deed of trust or mortgage, shall be recorded within 30 days after the date of sale in the office of the county recorder where the property or a portion of the property is located.

(b) Any failure to comply with the provisions of this section shall not affect the validity of a trustee's sale or a sale in favor of a bona fide purchaser.