My primary concern was that a notice to comply under section 45 refers to a breach of a by-law.
An adjudicator does deal with breaches of the Act, in which case the OC can make an application, they don’t have to issue a notice to comply. Examples of that would include an owner breaching sections 116 or 117 re interfering with the structure of a lot or creating a nuisance.
In the case of someone causing havoc at meetings, you then have to look at the powers of an adjudicator under Part 4 and I am not so sure they extend to this sort of scenario. As I have said elsewhere, there is no law against someone being a pain in the neck.
In the context of meetings, it is up to the Chair to run the meeting – if someone is being disruptive then the Chair should issue a warning, and if the person ignores it they should be removed. I know in real life this is not always workable.