Welcome to the forum, we have several members in our area but only a few active on the forum. My experience with local Ford dealers is limited and have not really found anyone with a certified mechanic although maybe someone can chime in with that information The good news is the cars are pretty bullet proof and general maintenance items can be performed yourself or by most any competent mechanic with the help of the repair manual. For anything major the forum has several members that can help.
Welcome to the Forum. I'm in Alpharetta too if you ever want to sync up. I havent needed any repairs and do my own service, so I dont have a good answer either. I know the Ferrari dealer used to work on a Tungsten GT that I almost purchased, so they have some experience. I wouldnt trust Angela Krause Ford with anything.
And Don't forget your power steering hoses. Supply is starting to run down a bit and when they are gone, they are gone. I'll be coming to the Nashville/Knoxville area next week for
GT work, but Atlanta may be a bit farther than I want to go.