Private mortgage insurers that survived the housing market collapse are quietly gnashing their teeth over new eligibility rules proposed by the Federal Housing Finance Agency, which likely will cause some to reengineer their corporate structures and/or raise additional capital. The good news for the legacy firms – Genworth, Mortgage Guaranty Insurance Corp., Radian and United Guaranty – is that they have the financial ability to meet the new capital standards. The bad news – for this group and MI newcomers – is that the FHFA’s proposals would narrow the competitive gap between the private MIs and the FHA. One trade group official, speaking under the condition his name not be used, noted...