[dragonwriter]

The Fair Housing Act (the part of the 1968 Civil Rights Act you are referring to) exempts owner-occupied buildings with less than five units, so it wouldn't apply to the other unit in an owner-occupied duplex.

[MiroF]

I didn't understand the GP to mean they were occupying the duplex. But in that context, it still violates california fair housing law.

[dragonwriter]

Oh sure, rather flagrantly. I count at least four protected traits it discriminates on. (Mentioned in a post in another branch of the thread.)