Cal. Civ. Code § 36-96.4

A. It is unlawful for any person or other entity, including any lending institution, whose business includes engaging in residential real estate-related transactions to discriminate against any person in making available such a transaction, or in the terms or conditions of such a transaction, or in the manner of providing such a transaction, because of race, color, religion, national origin, sex, elderliness, familial status, sexual orientation, gender identity, military status, or disability. It is not unlawful, however, for any person or other entity whose business includes engaging in residential real estate transactions to require any applicant to qualify financially for the loan or loans for which such person is making application.
B. As used in this section, the term "residential real estate-related transaction" means any of the following:
1. The making or purchasing of loans or providing other financial assistance (i) for purchasing, constructing, improving, repairing, or maintaining a dwelling or (ii) secured by residential real estate; or
2. The selling, brokering, insuring, or appraising of residential real property. However, nothing in this chapter shall prohibit a person engaged in the business of furnishing appraisals of real property to take into consideration factors other than race, color, religion, national origin, sex, elderliness, familial status, sexual orientation, gender identity, military status, or disability.
C. It shall be unlawful for any state, county, city, or municipal treasurer or governmental official whose responsibility it is to account for, to invest, or manage public funds to deposit or cause to be deposited any public funds in any lending institution provided for herein which is found to be committing discriminatory practices, where such findings were upheld by any court of competent jurisdiction. Upon such a court's judicial enforcement of any order to restrain a practice of such lending institution or for said institution to cease or desist in a discriminatory practice, the appropriate fiscal officer or treasurer of the Commonwealth or any political subdivision thereof which has funds deposited in any lending institution which is practicing discrimination, as set forth herein, shall take immediate steps to have the said funds withdrawn and redeposited in another lending institution. If for reasons of sound economic management, this action will result in a financial loss to the Commonwealth or any of its political subdivisions, the action may be deferred for a period not longer than one year. If the lending institution in question has corrected its discriminatory practices, any prohibition set forth in this section shall not apply.