SN Servicing Corporation | 3,026 followers on LinkedIn. NMLS #5985 | Security National Master Holding Company, LLC, and its affiliated corporations, is a privately held firm that specializes in loan acquisition, servicing, and real estate investment. For 25 years, we have dedicated ourselves to providing flexible and personalized solutions to our customers. Despite our significant growth and recognition on Wall Street, we retain our personal approach and pride ourselves on our commitment to professionalism, integrity and service.