Mortgage underwriting standards have loosened slightly recently, though nowhere near levels seen during the subprime boom. Federal regulators are concerned that not enough lending is being directed toward borrowers with lower credit scores. In November 2012, the average credit score on newly closed loans was 750, according to Ellie Mae. Average scores have largely declined each month since then, to 742 in April. During that time, credit scores on conventional mortgage originations declined by ...