1) couple minutes from AT.
2) little to no winters.
3) Establish lawn care business.
Sounds almost mutually exclusive. AT is mostly high and gets snow. Those places that don't aren't exactly the areas I would expect to be able to walk in and establish a lawn care business. Not sure what the attraction of the AT vs other hiking areas. Take a place like Palm Springs. Warm, affluent and within minutes of plenty of hiking.