At age 25, Jamila Davis was not only a single mom of two but also a big-time real estate investor with ties to the hip-hop community. Her business, which catered to the housing needs of high-profile athletes, music artists and entertainers, allowed her to rub elbows with Manhattan’s movers and shakers, and to become one herself. She was the quintessential success story—until her sketchy business deals caught up with her