You are wrong. Rent skimming is illegal. California Civil Code 890
edited to add
891(d) A tenant of residential real property may bring an action against a person who has engaged in rent skimming with respect to that property for the recovery of actual damages, including any security, as defined in Section 1950.5, and moving expenses if the property is sold at a foreclosure sale and the tenant was required to move. A prevailing plaintiff in such an action shall be awarded reasonable attorney’s fees and costs. The court also may award exemplary damages; it shall award exemplary damages of at least three times the amount of actual damages if the payments due under any deed of trust or mortgage were two or more months delinquent at the time the tenant rented the premises or if the defendant has engaged in multiple acts of rent skimming.
