Which agent role is designated by a dual agent and exclusively represents the seller in a dual agency situation?

In a dual agency situation, a seller's intra-company agent is the role that specifically denotes an agent who represents the seller exclusively while also being part of a dual agency arrangement. This scenario typically occurs when one real estate firm represents both the buyer and the seller in a transaction. The seller's intra-company agent has the responsibility to advocate for the seller’s interests, ensuring that the seller receives the best possible outcome in negotiations.

The importance of this role lies in the need to maintain a clear line of representation, even when dual agency complicates the relationship. This agent must adhere to fiduciary duties such as loyalty, confidentiality, and full disclosure, strictly prioritizing the seller's needs and preferences.

In contrast, other options like the broker and the broker's designee may represent more generalized roles in the real estate transaction that don't specifically focus on exclusive representation of the seller within a dual agency framework. Similarly, a buyer's intra-company agent would focus on representing the buyer's interests, not the seller’s. Therefore, the seller's intra-company agent is the most accurate designation for the role responsible for representing the seller exclusively in this context.