Realty Limited employed Louis as a salesman. Martine listed a building lot with Realty Limited for sale at $178,000. Louis found a buyer, Jeanne, but Jeanne could not raise the full purchase price. Louis and Jeanne agreed that Louis would purchase the lot personally and to sell it to Jeanne once Jeanne had finally raised the necessary $178,000. Louis then purchased the lot from Martine for $170,000 and six months later resold it to Jeanne for $178,000.

Discuss.