So, has a resolution been passed to make it OC responsibility? If so, I would very quickly check if NSW has a provision like the ACT provisions for a ‘reduced quorum’ meeting. Here if the meeting was actually attended by fewer than 50% of owners (it sounds like your was) you can overturn the decision by a petition of 50% of owners within 28 days of the meeting. If it was discussed but not yet voted on, I would ask your chairman why he supported the proposal and put a motion on notice for the next general meeting to maintain the status quo with reasons given.