The Justice Department has sued Mortgage Guaranty Insurance Corp., the nation’s largest mortgage insurance company, and two of its underwriting staffers, accusing them of discriminating against women mortgage loan applicants who were on paid maternity leave. The government’s suit, filed July 5, 2011, in the U.S. District Court for the Western District of Pennsylvania, accuses MGIC of requiring women on paid maternity leave to return to work before the company would insure their mortgages...