This representative goes by many different names ("reps", "watchers", "negotiators", etc.), none of which is important.
These "reps" will make arrangements for arbitration if needed, but will usually actually negotiate you out of it.
Obviously, if you are really a jerk who can't stay out of trouble, they will either charge you a very large price for the trouble you cause, or they will refuse to represent you anymore. Representing a known troublemaker could damage their reputation, after all.