Which type of agency involves the broker working for both the seller and the buyer?

The correct answer is Disclosed Dual Agent because this type of agency specifically refers to a situation where a broker represents both the seller and the buyer in a real estate transaction. In this arrangement, the broker must disclose to both parties that they are acting as a dual agent, which is necessary to ensure transparency and obtain informed consent from both the seller and the buyer.

The key element of disclosed dual agency is that, while the broker facilitates the transaction, they must still act in a neutral capacity since they owe fiduciary duties to both parties. This means the broker cannot fully advocate for one party over the other, as doing so would compromise their obligation to the other party involved in the transaction.

Other types of agency mentioned in the options serve different purposes. A seller agent exclusively represents the interests of the seller, a designated agent acts on behalf of one party while another agent represents the opposite party within the same firm, and a facilitator does not represent either party but instead assists them in the transaction. These distinctions highlight why disclosed dual agency is unique and specific to situations where one broker is managing the interests of both the buyer and seller simultaneously.