JPMorgan Chase has released an expansive look into third-party due diligence findings on a pending jumbo MBS under new disclosure requirements from the Securities and Exchange Commission. The increased loan-level disclosures could boost investor confidence in new non-agency MBS. Documents filed through the SEC’s electronic system and posted on the agency’s website include detailed, loan-level reports from three due diligence firms that examined mortgages set to be included in JPMorgan Mortgage Trust 2015-4. American Mortgage Consultants, a due diligence provider, said...