On June 1, 2020, Lex Real Estate Agency, the largest in the country, sent Dart Associates, Inc., an offer to sell Dart, one of the shopping centers owned by Lex. In the offer, Lex stated that he would not revoke the offer for 30 days. The written offer was signed by Lex. It was received by Dart on June 3, 2020. ON June 7, 2020, Dart wrote a letter rejecting the offer of Lex. This letter was received on June 15, 2020. After further research, Dart realized this was a good deal and it quickly sent out a letter of acceptance of the offer. The letter was received on June 12, 2020. Lex suddenly got a better buyer and then called Dart on June 1 1, 2020 and advised that he was revoking the offer.

Discuss the issues in this case and who wins