A loan originator works for a bank, mortgage company, or similar financial institution. Residential mortgage loan originators assist applicants who are buying or refinancing a home, while commercial mortgage loan originators focus on business property. As a loan originator, your main duties involve helping clients find the right loans and processing their loan applications. You may specialize in residential or commercial loans, or provide both services. The career also requires you to find new borrowers and maintain relationships with lenders.