National Default Servicing rebranded its four mortgage service business units under The National Groups banner. The four affiliate companies involved in the restructuring are National Default Services, an asset management, marketing and real estate owned property (REO) disposition outsourcer used by government agencies, institutions, and private investors; National Collections and Loss Mitigation Services, a default management firm that specializes in short sales and modification services, National Valuation Services, a valuation and quality control services provider and National Closing, Escrow, and Title Services, a closing and escrow services firm. “The National Groups is an enterprise designed to create a meaningful change in the way the institutional and private investors service their assets,” The National Groups CEO Bob Vanderbilt said in a statement. “Our combined operations represent a streamlined, cross-functional approach that will achieve a higher degree of efficiency than the affiliates could ever produce individually.” The firm runs two offices, one in San Diego, and a new facility in Glastonbury, Connecticut. Write to Austin Kilgore.