Understanding the Differences between a Realtor, and a Real estate Agent Definitions of a Realtor or Real Estate Agent What is a Realtor, exactly? A realtor is a professional licensed to act as an intermediary for buyers and sellers in the real estate market. They are members of National Association of Realtors and must adhere to strict codes of ethics. Real estate professionals are licensed, but not necessarily NAR-members. Both realtors and agents are licensed professionals who help clients to buy, sell or rent property. But realtors have additional resources and networking options. One key difference between a realtor and