Try Air B&B. Not sure what's available now, but several years ago I rented a place in Cartersville for two months. It was the summer between son's HS jr & Sr years, and he played a ton of tournaments in Lakepoint area. Got an entire basement studio with private entrance and hot tub for < $500/mo. We live 3 hours away, and he actually spent a good chunk of the time there by himself during the weeks when we were home at work.