Saul Katz, Fred Wilpon's BIL, co-founder of Sterling Equities, and Mets co-owner, will repeatedly tell you he is a CPA........the brains behind Sterling's investment portfolio and business operations.....in charge of all the family finances invested with Madoff. And yet the investment pro, claims he had no knowledge that Madoff was running a Ponzi. Katz took out over $120M just in the last six years. Katz's three sons, who work for Sterling Equities, snared more than $237M. Katz married Wilpon's sister, Iris, more than 50 years ago and in 1972 went into business with Fred.