Final answer:
In the absence of a buyer's representation agreement, while a broker still owes honesty, fairness, and full disclosure to a buyer, the duty of confidentiality is not owed as there's no formal agency relationship.
Step-by-step explanation:
If a broker brings a buyer to a seller but did not sign a buyer's representation agreement with the buyer, the duty NOT owed to the buyer is confidentiality. The duties of honesty, fairness, and full disclosure are still owed to the buyer as these are part of the general duties that a real estate broker owes to both clients and customers in a real estate transaction. However, confidentiality is a fiduciary duty owed to a client with whom the agent has an established agency relationship, which would typically be formalized in agreements such as a buyer's representation agreement.
If a broker brings a buyer to a seller without signing a buyer's representation agreement, the duty that is NOT owed to the buyer is Confidentiality. This duty implies that the broker is expected to keep any information shared by the buyer confidential and not disclose it to others without the buyer's consent. However, without a signed representation agreement, the broker does not owe the buyer the duty of confidentiality.