Moves by three issuers of prime non-agency mortgage-backed securities to allow for third-party due diligence reviews to be completed on fewer than 100 percent of the loans in an MBS could increase the risk of losses for MBS investors, according to Moody’s Investors Service. In a report released this week, Moody’s said narrower due diligence reviews increase the likelihood of defective loans appearing in non-agency MBS. The rating service added that representations ... [Includes five briefs]