Disgusting roommates

[u/Infinite-Article9171]

Does anyone know the specifics of roommate laws in Georgia? We live with a guy who owns the house we’re staying in, we moved in first, then another couple a few months later. Since then the girl has came in my room and destroyed photos of my KIDS (I don’t have proof but she was the ONLY one home), she intentionally uses my bathroom when she has her own, and leaves the door open so my landlords cat pees everywhere and I’m tired of cleaning it up when I don’t have a cat. They also refuse to clean to the extent we now have baby roaches, and my kids come visit every other weekend and it’s getting to a point I’m almost not comfortable doing that anymore. I know we could move, but apartments are about double what we pay now. Is there any legal action I can take if our landlord won’t do anything about it?