With the housing market in decline, financial predators are finding yet another way to take advantage of people who fall behind on their payments. Shakeela Muhammad signed up for a mortgage program to save her home. The company stopped making payments, and she faces foreclosure. The schemes take various forms and often involve promises to distressed homeowners of cash upfront, free monthly rent and a chance to retain their houses in the long run. But in the process, someone else takes over the deed, borrows as much as possible against the value of the house and pockets the cash. And,...