There is a law in GA that prohibits 'shared' kitchen space. One operator per kitchen. Here is a link to another forum where they discuss it and possible ways to deal with it.
Looks like your best bet would be to find a church that has not leased their kitchen to a caterer already and see if you could rent that from them.
Hope its not too late for this kinda info, didn't notice that the thread had been necro'd until I'd already posted.