California Code, Civil Code - CIV § 2956

(a) To the purchaser, by the arranger of credit and the vendor (with respect to information within the knowledge of the vendor).

(b) To the vendor, by the arranger of credit and the purchaser (with respect to information within the knowledge of the purchaser).

If there is more than one arranger of credit and one of those arrangers has obtained the offer by the purchaser to purchase the property, that arranger shall make the disclosure, unless the parties designate another person in writing.