[Andy]

Your other option, and it would be a lot of work, is to form your own officials association and directly compete with him.

If this guy is as much of a jerk and hardliner as you say, then it is likely he has pissed off other umpires and officials in the area that may be open to joining a new association.

We (umpires) always say that we are independent contractors and are free to work, or not work, for whoever we want. However, we often conveniently forget that the assignors are independent too and are free to hire, or not hire, whoever they want. Legal action would more than likely be pointless.