To sale and to buy contract because to sale and to buy contract is “the seller agrees to sell the property to the buyer at a future time and the buyer agrees to pay a purchase price at that time.” In this case, Mr. Ryan agreed to buy a plot of land from Mr. Nat that Mr. Ryan and Mr. Nat promised to enter into a sale contract on February 10, 2013 (future) and Mr. Ryan agreed to pay a purchase price at this time.