@Cristina S. I have a little different take than some here. I flip and hold in Cobb County, primarily in East Cobb, Marietta, and Kennesaw. I don't particularly like condos, simply because of the HOAs, potential restrictions, etc. However, I love townhouses and there are plenty here in GA. I own 4 of them in at least B+ neighborhoods. They cash flow very well (almost as good as a house), are low maintenance, and have low risk. I think you should look into these as an option from what I'm hearing you describe.
Now, one of the problems that I see is definitely the 50% down in this market. Townhouses at the right price go quickly (well I guess anything at the right price does). So, even at 50%, someone is going to come in with cash, quick close, etc. However, if you're willing to go 100% on something (maybe a HELOC or a partner), you can refi it out in 6 months and get your money back. Since you sound a little risk averse, this may make you very uncomfortable. I know several people also say this is not a good way to do it because your cash is gone it doesn't sound as though you are going to be using that cash too fast again anyway. The sad truth for you is that the DOM in East Cobb, Roswell, Alpharetta, etc. is very, very low. It is a very fast market right now and if you don't come in strong and quick, you're going to be out of luck.