The main differences between real estate agents and realtors The main differences between real estate agents and realtors Definition 1. Real estate agents are individuals who are licensed to represent buyers and seller in real estate transactions. They are responsible for helping their clients buy, rent, or sell properties and must adhere to strict legal and ethical guidelines set forth by their state’s Real Estate Commission. 2. A realtor on the other side is a licensed real estate agent that is also a member of National Association of Realtors. To become a realtor, an agent must join the NAR and