The non-agency mortgage market is expected to take the brunt of the changes prompted by the Consumer Financial Protection Bureau’s new ability-to-repay rule and requirements for qualified mortgages. However, two months before the rule takes effect, the rating services haven’t released guidelines for how non-QMs will be rated, prompting issuers to be cautious with plans for non-QMs. Kroll Bond Rating Agency was the only rating service to offer details to Inside MBS & ABS in response to questions about ratings for non-agency MBS once the QM requirements take effect. Glenn Costello, a senior managing director at KBRA, said the securitization of non-QM loans will require additional credit enhancement relative to QMs. DBRS and Standard & Poor’s declined...