You can buy a property in Atlanta or anywhere in US without being a US citizen. However, although not a loan expert, I doubt that you will get a loan without a legal status of any kind, social security, Tax returns for at least two years and credit history in America. To the best of my knowledge it will have to be a cash purchase. Once you are able to move here then the schools are free up to 12th grade. But merely owning a property does not get you the visa or right to reside here. To get a more accurate visa information, I suggest you consult an immigration lawyer.