Which of the following is NOT a duty of a transaction broker?

A transaction broker in Florida plays a role that includes specific responsibilities to facilitate a real estate transaction without establishing a fiduciary relationship with either party.

The notion of full representation is key here. Unlike a single agent who owes fiduciary duties to one party—whether the buyer or the seller—a transaction broker does not represent either party fully. Instead, the transaction broker provides a limited form of representation that neutralizes conflict of interest, guiding both parties by completing necessary documentation and helping in negotiations without siding with one over the other. This means that while they must disclose known facts pertaining to a property's value and maintain limited confidentiality, they do not provide full representation to the seller or the buyer.

Thus, the choice of "full representation for the seller" accurately reflects a duty that a transaction broker does not undertake, making this option the correct one in the context of the question.