A Letter of Intent is usually used in the beginning stages of a negotiation to get "good idea" of what the buyer and seller are each after. It is not required, and quite frankly, is not used in most transactions. However, a LOI is a good document to use _ especially if you are looking to purchase a property for substantially less than the listing price. Let's look at when the best time to use Offer to Purchase. Remember, this is the formal offer, and is legally binding once signed by both parties.
At the end you should sign off with "sincerely yours" or any other related salutation.If you are writing a letter of intent for graduate school then it would have a different content.First of all letter of intent would start with your name, address, contact number and email address.After you have mentioned the date, you should then add a salutation like "Dear Sir/Mam".