Why you should hire a Realtor when buying or selling your next home. What is a Realtor and what are some benefits of using a Realtor? A Realtor is a real estate agent but not all real estate agents are Realtors. Realtors are members of their local real estate board. All boards belong to the National Association of Realtors with over 1 million members. How can you differentiate between a Realtor and a non-Realtor? Both groups are licensed real estate agents. The word Realtor is exclusive only to Realtors. Non-Realtors may not use the word Realtor in any form.