I'm involved in a dispute with a person with whom I did business; the business and the dispute have nothing to do with my profession (a lawyer).
The person is threatening to file a complaint with the local bar about me. (Long story short, but I had minimal contacts with the person, and I checked with my own counsel about everything I did with the person, and there are absolutely no grounds for a bar complaint; it's just another weapon that the person is trying to use.)
Are there penalties that someone can incur by filing a frivolous complaint to the bar about a lawyer? Assuming that the complaint is quickly dismissed by the local bar, does the lawyer who was the subject of the complaint have any ways of recovering for a frivolous complaint?