California Code, Civil Code - CIV § 1917.030

Lenders may make shared appreciation loans pursuant to this chapter for the purchase of real property improved with one- to four-family dwelling units, including structures ancillary to such dwelling units and including attached single-family dwelling units, single-family mobilehome units placed upon permanent foundations, residential condominium units and dwelling units within a planned unit development. Shared appreciation loans shall be made to finance only owner-occupied dwelling units, but in the case of two- to four-unit dwellings financed under this chapter only one of the units need be owner-occupied. The original recipient of a shared appreciation loan shall certify in writing to the lender that he or she will occupy the security property as his or her principal residence, provided that failure to so occupy the security property shall not void a shared appreciation loan, but at the option of the lender the loan may be accelerated in accordance with the terms and conditions provided in the shared appreciation loan. All shared appreciation loans shall be originated by the lender on behalf of a pension fund which is subject to the Employee Retirement Income Security Act of 1974 (P.L. 93-406, 88 Stat. 829),  1 pursuant to a prior written commitment to purchase the loan.