When the owner put any change desired to the Body Corp AGM he was obviously aware there was a need to do it that way, it was knocked back and grounds would have been given. Now to go ahead he is likely just trying it on because he’s a dill, or your committee haven’t earned respect. Your body corporate manager should have been over him like a rash in this and the other incident you mention but obviously haven’t been directed to by your committee. So they need to be or they themselves become the issue. Essentially buying into a complex is a team sport with some a little more front foot than others, and many and most just not that interested or are happy to remain ignorant. Either way doesn’t matter while there are minimum standards and limits to what folks can do. There’s nothing stop the precedent of anything goes otherwise. Id’ consider asking your manager for the piece of legislation (Act or By-Laws) that applies, and apply it.