In “The Godfather,” Don Corleone dispatches a minion to deal with an uncooperative movie producer. Make him an offer he can’t refuse,” orders the Don. You don’t have the Don’s powers of persuasion (or at least I hope not).  The threat of violence is not exactly a standard sales technique. Still, Don C. offers some sage sales advice. You can do it. It will be inexpensive, fast, and low risk.