(a) accept delivery of and present to the client offers and counteroffers to buy, sell, or lease the client's property or the property the client seeks to purchase or lease;
(b) assist the client in developing, communicating, negotiating, and presenting offers, counteroffers, and notices that relate to the offers and counteroffers until a lease or purchase agreement is signed and all contingencies are satisfied or waived; and
(c) answer the client's questions relating to the offers, counteroffers, notices, and contingencies.