What action would violate a buyer's representative salesperson's duty to their client?

Disclosing the highest price a buyer is willing to pay would violate the duty of loyalty and confidentiality that a buyer's representative salesperson owes to their client. This duty requires the representative to keep the buyer's personal and transactional information confidential, especially sensitive financial details such as the maximum price they are willing to pay. Revealing this information to the seller could undermine the buyer's negotiating position and would generally be considered unethical and unprofessional. Maintaining confidentiality is essential for establishing trust and ensuring that the buyer's interests are prioritized throughout the transaction process.

In contrast, encouraging the buyer to negotiate effectively, providing the seller with conditional offers, and conducting market analysis (typically) do not violate the salesperson's duties, as long as these actions are aligned with the client's best interests and done appropriately.