In my building we have the standard by-law for “Behaviour of Owners , occupants and invitees” Used it a couple of times for good effect.
The other tactic that one strata manager uses is to hold committee and general meetings off site ie in his office. When the troublemaker starts trouble, the strata manager gives a warning and the next outburst uninvites the troublemaker from the premises. That then makes it a trespass and the police can be called to remove the troublemaker.