A lawsuit filed last week by Bank of New York Mellon against WMC Mortgage and GE Mortgage Holdings is the latest sign that repurchase issues on non-agency mortgage-backed securities are increasing. After years of resistance, trustees are starting to act on behalf of non-agency MBS investors seeking repurchases. Three of the four major banks reported increases in non-agency repurchase requests in the second quarter of 2012 compared with the previous quarter, according to an analysis by Inside Nonconforming Markets ...