NEW YORK--(BUSINESS WIRE)--Link to Fitch Ratings' Report: US RMBS Servicer Handbook Fitch Ratings has published its first U.S. RMBS Mortgage Servicer Handbook, which provides comprehensive information on Fitch-rated servicers in an easy reference format. The handbook includes a description of all Fitch-rated RMBS servicers, their current servicer ratings and key rating drivers, portfolio size and key attributes, important trends, links to the full RMBS servicer reports, and Fitch analyst contac