New to this, advice for Georgia/Florida

Anywhere north of about Orlando a light freeze is possible.
The farther north, the more likely.

Do all the online searching you can. Make phone calls. Ask on here before making reservations at any specific place.

And you need to understand that the cheaper places won't be as "nice". Some can be downright nasty.

It is almost too late to find a "good" place in Florida for more than a few days at a time. And the good places know that they can demand a higher price and get it in the winter time.