NEW YORK--(BUSINESS WIRE)-- #creditratingagency--KBRA assigns preliminary ratings to eight classes of mortgage-backed certificates from Angel Oak Mortgage Trust 2025-13 (AOMT 2025-13), a $333.4 million non-prime RMBS transaction. The underlying collateral, comprised of 659 residential mortgages, is characterized by a significant concentration of loans underwritten using alternative income documentation. All the loans are either classified as non-qualified mortgages (Non-QM) (53.5%) or exempt (46.5%) from th ...