Which party has the right to revoke an offer at any time prior to acceptance?

The right to revoke an offer prior to acceptance lies with the offeror. This is because the offeror is the party that creates the offer and maintains control over it until it has been accepted by the offeree. As long as the offer has not yet been accepted, the offeror is free to change their mind and withdraw the offer, for any reason or no reason at all, without needing the consent of the offeree. This principle is foundational in contract law and emphasizes the autonomy of the offeror in the negotiation process.

The other parties mentioned do not have this right. The offeree cannot revoke an offer because they have not made it. Buyers and sellers' agents operate under the instructions and authority given to them by their respective clients and typically do not have independent rights to revoke offers unless explicitly empowered to act on behalf of the principal. Thus, understanding who holds the authority to revoke an offer clarifies the dynamics of negotiation and contract formation.