The Letter of Intent is a non_binding document of inquiry, stating one's interest and intent. The more appropriate document for an Importer to use when initiating contact with an Exporter or supplier is an RFQ _ Request for Quotation. Many brokers and new traders believe that the LOI establishes some sort of firm inquiry, nothing can be further from the truth. There is absolutely nothing binding whatsoever about an Letter of Intent because all that it does is to establishes an intention _ for example, I can sit down and write a letter of intent to buy the empire state building and it would be, utterly non binding.
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".