I have a long term tenant who has been great… until I found out she got a male non neutered cat (without my permission) who has been spraying all over the townhome for months. I do accept an adult cat normally but ask for proof of it being spayed/neutered for this reason. The smell is seeping into the townhome next door and I gave her a week to try to clean it up and get her cat fixed. I went in yesterday and it’s worse. I very nicely told her the cat goes or they both go. She called me today and said she is looking for a new place. I’ve never had a smell like this to deal with. Any recommendations on ways to get rid of this smell once she is out? I know the usual paint everything with Kilz, replace the flooring, etc… but I literally can’t even stand to walk in there to begin all of that with the way it smells.