When Broker A is hired to help Buyer B find a house, what type of agent is Broker A considered?

Broker A is considered a special agent in this scenario because the relationship is specific to finding a house for Buyer B. A special agent typically has a limited scope of authority, usually focused on a specific task or transaction, rather than a broad range of responsibilities. In the case of a real estate broker representing a buyer, the broker's role is to assist the buyer in locating and purchasing a property, without extending beyond that particular transaction.

This definition clearly distinguishes the special agent from other types of agents, such as a general agent, who would have ongoing authority to act on behalf of the client in a broad range of activities, or a designated agent, who is appointed to represent a specific party in a transaction while other agents are involved. A sub-agent, on the other hand, would typically work under another agent's authority in the same transaction. Thus, the context confirms that Broker A is a special agent tied specifically to the task of helping Buyer B find a house.