A Milwaukee-based Alt A shop has set its sights on growth with a strategy that targets niches that few lenders want to play in. Platinum Direct Funding bills itself as an “extreme and fearless mortgage lender,” and it’s not difficult to see why. Among the four-year-old company’s core products are an “extreme” full doc program that offers 100 percent financing to borrowers with FICO scores as low as 620 and a no-doc program that allows