Contrary to the sellers' and their super sales_conscious agents' familiar claim that "There is nothing to lose in signing those documents," quite the complete opposite is true _ namely, a great deal, in fact, could potentially be lost particularly by the buyer by signing an LOI to a supposed seller. Why? In a word, this is because the LOI is actually fraught with many incalculable legal flaws, traps and pitfalls, much of which could often be prohibitively costly for the buyer, according to legal authorities and contract law experts. (See below for more on this)
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".