I have a few law graduate friends who have been ever so helpful to me in dealing with a possible legal issue. While they have given me informal, friend-to-friend advice, I have not engaged in a proper lawsuit yet. My law graduate friends provided me with a Cease and Desist Letter to stop another person from harassing me. I altered it slightly to suit my situation. However, it has no firm's letterhead and isn't from a lawyer. It is directly from me, but written by my law friend. One of my friends advised this was sufficient to provide to the other party if they continue the harassment. Not that I discredit him at all, but is this true? Can any normal Joe write his own Cease and Desist letter and give that to someone else, even if lawyers aren't yet involved?