Cal. Civil Code § 1989

(a) Notwithstanding subdivision (c) of Section 1981, where the landlord releases to the former tenant property which remains on the premises after a tenancy is terminated, the landlord is not liable with respect to that property to any person. (b) Where the landlord releases property pursuant to Section 1987 to a person (other than the former tenant) reasonably believed by the landlord to be the owner of the property, the landlord is not liable with respect to that property to: (1) Any person to whom notice was given pursuant to Section 1983; or (2) Any person to whom notice was not given pursuant to Section 1983 unless such person proves that, prior to releasing the property, the landlord believed or reasonably should have believed that such person had an interest in the property and also that the landlord knew or should have known upon reasonable investigation the address of such person. (c) Where property is disposed of pursuant to Section 1988, the landlord is not liable with respect to that property to: (1) Any person to whom notice was given pursuant to Section 1983; or (2) Any person to whom notice was not given pursuant to Section 1983 unless such person proves that, prior to disposing of the property pursuant to Section 1988, the landlord believed or reasonably should have believed that such person had an interest in the property and also that the landlord knew or should have known upon reasonable investigation the address of such person.