Perry Logan owned a small office building in suburban Halifax. As he was nearing retirement, Perry listed his building for sale with Alice Marshall, a real estate agent. While Perry was on an extended visit to Florida looking for a retirement property, he authorized Alice to sell the building on his behalf provided the offer was for at least $600 000. Alice showed the property to Dee Shannahan during the term of the listing agreement but Dee did not make an offer.

Two weeks after the listing agreement between Perry and Alice expired, Dee made an offer to purchase the property for $625 000. Alice accepted the offer on behalf of Perry. Is there a contract between Perry and Dee? Explain.