It’s been roughly 42 months since the last nonbank mortgage lender went public. And it could be another 42 months before the next one comes along the way things stand today, which is kind of odd given that the industry is coming off its second-best production year of the decade. But most publicly traded nonbanks, with a few exceptions, haven’t exactly lit the world on fire the past two years. Two of the nation’s largest nonbank servicers – Walter/Ditech and Ocwen Financial – continue to trade near their 52-week lows and at a steep discount to their all-time highs. In the case of Ocwen, the fall has been...