@John Neville - I have brought one deal from roofstock in atlanta metro area which turned out to be a great deal but here are some suggestions.
1. Find some reputable turnkey companies, I know of several which post deals weekly and you can make offers on them
2. Highly recommend always putting a financed offer and an inspection contingency. There are 2 parties which will protect your investment as bank will do an appraisal before they will lend and home inspection will reveal any major issues.
3. Lastly, if you have identified Birmingham as an area, find a good realtor. It is going to be invaluable as they will tell you which areas to stay away from and can give you their opinion on properties.
I have realized after doing my first deal on roofstock that real estate is purely a relationship business. You need a strong network. If you don't want to go build one, find a strong turnkey company which is highly reputable.