Person who arranges the purchase or sale of property for a buyer or seller in return for a commission. Brokers may help arrange financing of the purchase through contacts with banks, savings and loans, and mortgage bankers. Brokers must be licensed by the state to buy or sell real estate. A real estate broker is a party who acts as an intermediary between sellers and buyers of real estate and attempts to find sellers who wish to sell and buyers who wish to buy. In the United States, the relationship was originally established by reference to the English common law of agency with the broker having a fiduciary relationship with his clients. Estate agent is the term used in the United Kingdom to describe a person or organization whose business is to market real estate on behalf of clients.

In early days technical term of RealtorInRealLasVegas is referred to a person accountable for operating a NevadaReal Estate, while those engaged in the buying and HomesForSaleLasVegas were "house agents", and those selling land were "land agents". Conversely, after duration of the 20th century "estate agent" happening to be use as a common term, possibly because it was considered to sound more notable.

Agency relationships with clients versus Non-Agency relationships with customers :

Traditionally, the broker provides a conventional full-service, commission-based brokerage relationship under a signed listing agreement with a seller or "buyer representation" agreement with a buyer, in most states thus creating under common law an agency relationship with fiduciary obligations. Some states also have statutes which define and control the nature of the representation. These are then clients of the broker. Agency relationships in a residential real estate transactions involves the legal representation by a real estate broker of the principal, whether that person or persons is a buyer or a seller. The broker (and his/her licensed real estate agents) then becomes the agent of the principal who is the broker’s client. In a non-agency situation, a real estate broker works with a principal who is then known as the broker’s customer. Examples of this would be when a buyer has not entered into a Buyer Agency agreement with the broker, and buys a property where the broker is the sub-agent of the seller’s broker; or where a seller chooses to work with a transaction broker.