Susie met with Florence and discussed whether Florence wanted to rent her apartment for a few months while Susie was out of town. A few days later, Florence sent Susie a letter stating that she agreed to rent the apartment but would need a couple of weeks to move out of her existing apartment. The letter was sent through the mail to the apartment building where Susie lived. Unfortunately, the letter was placed in another tenant's mailbox. The other tenant took the letter and threw it out. A couple of weeks later, Florence arrived at the apartment ready to move in but another person had already taken occupancy from Susie. Discuss and analyze legal issues raised by this story.