the multimillion dollar remake wheat g -- multimillion dollar private equity firm, this is a bargain hunt. it is part of an enormous bet on what some consider the hottest asset class on the street, america's single-family homes. the biggest players include new york private equity giant blackstone for its subsidiary, invitation homes. colony capital. in california-based american homes for rent. many of the houses they are buying were until recently homes that line to families like this. they have been struggling with monthly payments for sometime time when in late september they requested a third mortgage modification from the lender, citigroup. >> everything was supposed to be on hold. we didn't worry about it. >> after what the hardaways say was a days notice, citi mortgage sold their home to the highest bidder, black stone >. >> literally it is like our house was stolen. we were caught offguard just in general. no notice, know anything. ing as awoman, act bitter, but the house on scene. she was one of more than one dozen bidders for blackstone. across the state of georgia, in one day the firm purchased more than 170 homes. thanks to the rapid foreclo