It is unlawful for any person to initiate, enter into, negotiate, or consummate any transaction involving residential real property in foreclosure, as defined in Section 1695.1, if such person, by the terms of such transaction, takes unconscionable advantage of the property owner in foreclosure.
Source:
Section 1695.13, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=CIV§ionNum=1695.13..