Robert Woods learned about the world of non-performing loans when he answered a phone call in 2011 from an investor who had purchased Woods’ strategically defaulted loan and was foreclosing. “We signed a deed-in-lieu (of foreclosure) and the house was gone. The place had stainless steel appliances, we left it clean,” Woods said of the Florida condo he had purchased in 2006 with buddy while in college using a stated-income loan and $2,000 down …