Lenders continue to originate non-agency jumbo mortgages, but few are likely to be securitized in the coming months due to more favorable economics for banks retaining the loans in portfolio. Longer term, many investors suggest they wont return to the non-agency mortgage-backed security market until issuers standardize their offerings. The ABS East conference sponsored by Information Management Network last week in Miami presented a tale of two markets: jumbo MBS and everything else ...