Real estate broker (or, in some states, qualifying broker):

After gaining some years of experience in real estate sales, a salesperson may decide to become licensed as a real estate broker (or Principal/qualifying broker) in order to own, manage or operate their own brokerage. In addition, some states allow college graduates to apply for a broker license without years of experience. College graduates fall into this category once they have completed the state required courses as well. California allows licensed attorneys to become brokers upon passing the broker exam, without having to take the requisite courses required of agent.^[3] Commonly more course work and a broker's state exam on real estate law must be passed. Upon obtaining a broker's license, a real estate agent may continue to work for another broker in a similar capacity as before (often referred to as a broker associate or associate broker) or take charge of his/her own brokerage and hire other salespersons (or broker) licensees. Becoming a branch office manager may or may not require a broker's license. Some states such as New York allow licensed attorneys to become real estate brokers without taking any exam. In some states, such as Colorado, there are no "salespeople", as all licensees are brokers.
A Realtor is a real estate professional, usually a broker or salesperson, who is a member of the National Association of Realtors (NAR). There are 1.3 million Realtors, mostly in the United States, and an additional 1 million licensed real estate agents who are not members of NAR and cannot use the term "realtor".^[4] However, the U.S. Bureau of Labor Statistics claims only about 600,000 working brokers/salespersons.^[5]