Redwood Trust is set to issue a non-agency mortgage-backed security backed by $375.2 million in jumbo mortgages, marking the issuer’s – and the mortgage market’s – second new jumbo deal this year. Fitch Ratings is giving a AAA rating based on its new tougher standards, though it remains unclear whether another service will rate the transaction. A presale report issued last week by Fitch noted the strong characteristics of Redwood’s Sequoia Mortgage Trust 2011-2. ...