Non-agency mortgage-backed security issuers and investors were getting more comfortable in recent years with third-party due diligence reviews of less than 100 percent of the mortgages in an MBS due to the exceptionally strong performance of new originations. However, analysts at Morningstar Credit Ratings suggest that most non-agency MBS backed by new mortgages will be subject to full reviews due to uncertainty regarding the CFPB’s integrated-disclosure rule under the Truth in Lending Act and the Real Estate Settlement Procedures Act, otherwise known as TRID. The reviews help identify and cure compliance issues and protect MBS investors from TRID-related losses. “Most post-crisis transactions carry out due diligence on every loan, and we...