The future size and form of the non-agency market continue to be debated even as a number of market participants take significant steps toward reviving issuance of non-agency mortgage-backed securities. One thing is certain: Redwood Trust is no longer alone in its efforts to revive the non-agency market.Goldman Sachs has reportedly acquired more than $1.0 billion in jumbo mortgages via the conduit it established last year. The investment bank is reportedly paying a premium for the loans and plans to issue a non-agency MBS this year. This week, Shellpoint Partners, a specialty finance company, acquired...