We just moved into a new home. And my 2 cats seem fine. It’s the first time we’ve ever changed houess. My cats are allowed to go outside. They do come back. And we’ve been here for about a month. They haven’t tried running away. But I found out, that the lady who used to live here, had a cat. And she died. So the cat walks around outside. And we see him/her every once in a while. My cats do NOT like him. But the cat does not seem aggressive. My cat is the one who growls and hunches his back. I want to take in this cat, and keep him. Can I do that?