A mortgage loan officer assistant works under the direct supervision of a mortgage loan officer (MLO) or mortgage loan originator. They are responsible for facilitating the accurate and timely completion of home real estate loan applications including making initial contact and follow-ups with clients, gathering information for new loan underwriting, providing support throughout the mortgage loan application process, and performing administrative duties. They generally work at a mortgage company and interface with their mortgage loan officer, underwriters, realtors, and prospective buyers.