When mortgage-related litigation, including residential mortgage-backed securities (RMBS) lawsuits, erupted after the last financial crisis (the Great Recession of 2008), the litigants recognized that some of their disputes presented issues of “first impression.” That is, the parties’ arguments required judicial analysis and interpretation of contractual provisions and other issues that had not been litigated in a mortgage industry context. Even now, more than a decade later, some key issues remain subject to contradictory legal rulings…