Many newcomers to the world of international business are given confusing advice on the proper documents to use in their business. The Letter of intent / LOI is a document that many refer to, but actually is poorly understood. Without proper understanding of the document you might find yourself making mistakes in your business that will cause you great embarrassment.
On Offer acceptance there is either a contract generated or a pro forma invoice generated. Since the offer is binding once accepted, the offer if well enough detailed and advised can and often does take the place of the contract. Customarily in Real Estate transactions the purchase offer itself is generally also the contract for purchase as well. The offer becomes a binding contract once accepted.