Ask a landlord-tenant lawyer and get answers ASAP
Hello and welcome! My name is ***** ***** I am a licensed attorney who will try my very best to help with your situation or get you to someone who can. There may be a slight delay in my responses as I research statutes or ordinances and type out an answer or reply, but rest assured, I am working on your question.
If you are asking if they can charge you for any lost rent until they re-rent, unfortunately the answer is yes. A lease is legally binding as soon as you sign it and if you breach the lease, even if you have not moved in, the landlord can charge you for any lost rent until he rents it again. He does have a legal duty to mitigate his damages by advertising and trying to re-rent as soon as possible.
This is a matter of general landlord tenant contract law and the landlord doesn't have a legal obligation to explain this to you prior to you signing as he is not your attorney. If you have questions about a contract like a lease or any legal repercussions of signing it, then you would need to talk to an attorney before you sign it. After you sign is too late because you are already legally bound.
With that said, if you didn't pay the rent, the landlord would have to sue you where you live, which is pretty unlikely if you are in GA and it is much more likely that he will try to threaten and scare you but won't really do anything simply due to the cost..
As an aside, in addition to being an attorney, I have also been a landlord for over 26 years...