I'm late to the chat. Im not sure what you need space-wise inside the house, but my neighbor's house is for sale with a detached 2 car garage. the house is ~1400 sq ft and 2 bedrooms, but is prime for a remodel that could certainly include changing some space to add a 3rd bedroom. https://www.redfin.com/SC/Greenville/125-Broughton-Dr-29609/home/86660703