Whether it's wise to rent to friends or family is one question and the other is, do you insist on having some papers signed just in case? I've learned that some landlords make exceptions when it comes to dealing with family or friends they expect the agreement to be honored. They've known these people for a long time, haven't they? But friendships can end . . . sometimes acrimoniously. What then? If rent was owed, how will you make that "friend" pay it? Question: are there times when a gentleman's agreement is better than a legally binding lease or rental agreement?