Broker A agrees to represent Seller B in the sale of her house. Seller B agrees to pay Broker A a commission if he successfully sells the house. What type of contract exists between them?

The situation described involves a mutual agreement between Broker A and Seller B, where both parties have specific obligations. Broker A has the responsibility to actively market and sell Seller B's house, while Seller B agrees to pay a commission upon the successful sale. This mutual exchange of promises creates a bilateral contract, as both parties are committing to perform certain duties; Broker A to act on behalf of Seller B and Seller B to compensate Broker A for his services.

A bilateral express contract is defined as one where the terms are clearly laid out and accepted by both parties, which is indeed the case here. Both the requirement of the commission and the expectation of the sale are explicitly stated, indicating a clear agreement that has been articulated, leading to an express contract.

In contrast, a unilateral express contract would involve only one party making a promise contingent on the action of another, which is not applicable here since both parties have made commitments. An implied contract arises from the actions or circumstances rather than a written or verbally expressed agreement, which also does not fit this scenario. Finally, while the agreement could potentially be oral, the focus in this case is on the bilateral nature of the responsibilities agreed upon by both the broker and the seller, making the emphasis on the express nature