Redwood Trust is preparing to issue its second consecutive jumbo MBS that includes a new stop-advance feature. While officials at the real estate investment trust said the feature has been well received by AAA investors, Fitch Ratings warned late last week that it introduces some risks to deals. The stop-advance feature being used by Redwood prevents servicers from providing advances of principal and interest on loans that are 120+ days delinquent. The feature was first used on the $356.45 million deal Redwood issued in April and is set to be included in a pending $343.21 million jumbo MBS from the issuer. Fitch didn’t rate...