Letters of intent can be used in situations where a group of students wish to organize a specific club or perhaps a new fraternity. In the letter they can state their reasons for taking this action, how many members they expect to have and what they think they are going to accomplish. The letter can also outline the requirements for membership and in many cases the basic rules of behavior that will be expected for continued membership. Students might also write a skillfully prepared letter to the admissions office of the college they wish to attend and include it with the rest of their application package.
Finally, there is no such thing as an oral offer! An oral offer is really just a test by the buyer to see what the seller will or will not accept. Make the buyer put the terms of the offer in writing as an intermediate step toward securing a legitimate offer.