Legal Question in Real Estate Law in California

I'm afraid not. When more than one person jointly own real property, they each have the same legal rights as if they owned it alone. Of course that means you have the right to throw him out, but then she has the right to move him back in . . . it becomes a snake eating it's tail.

This is why it is so important that when real property is inherited it either goes into a trust with a single trustee to manage it for the benefit of all, or the heirs enter into a co-tenancy agreement that outlines what everyone can and cannot do.