(commonly mispronounced as re-la-tor) The Association of Realtors is a national organization whose member Brokers and Agents become part of to validate their commitment to work ethically in the service of home sellers and buyers. However, that does not mean that all Brokers and Agents are Realtors, nor does it mean that those who are, are necessarily ethical. One of the biggest services the Realtor group provides its members are many programs and classes in continuing education and advanced designation. This group is the largest trade group in the United States.