A year ago the federal government and 49 states completed a $25 billion agreement with the nation’s largest mortgage servicers to settle claims of “robo-signing” and unlawful foreclosure practices. President Barack Obama announced the creation of the federal-state mortgage securities working group in his 2012 State of the Union address. The nation seemed on the verge of transforming the way banks treat struggling homeowners ‑ particularly those with “underwater” mortgages, in which a homeowner owes more than the house is worth.