“The return of non-agency MBS for prime loans is a lot further along than market observers might think,” officials at Redwood Trust said last week. The company said its goal is to issue $900 million or more in non-agency MBS each quarter within the next 12-to-18 months and eventually finance mortgages for prime borrowers “who do not fit into today’s tight credit box.” Through 10 months in 2012, Redwood averaged $498.31 million in quarterly non-agency MBS issuance, according to the Inside Mortgage Finance ...