Bring it in. Feed it the stinkiest cat treats you can find for a short while along with dry cat food.
If you do not want the cat, take it to the animal shelter or try and find a home for it by yourselves after its all over.
Your gonna need a litter box. A simple square plastic dish pan will do with some floor dry type cat litter.
We’re are going to take it to the Gwinnett animal shelter.