The final rule issued by the Consumer Financial Protection Bureau this week to define ability-to-repay requirements and “qualified mortgages” puts non-agency and subprime mortgages at a significant disadvantage to prime and agency mortgages. The slant against non-agency loans goes beyond what was required by the Dodd-Frank Act, according to industry analysts. The rule is set to take effect Jan. 10, 2014. Under the final rule, qualified mortgages must meet...