I doubt the previous office bearers are current but I am in the ACT so not so familiar with the details in NSW. I think in the absence of an AGM to appoint the entire OC becomes the committee. IE every decision requires a general meeting now that you are past the due time for another AGM to appoint another EC. I think the terms of the previous EC would have expired once the latest date for an AGM had passed. Since you had a poor experience with the conduct of your previous AGM and since you are only 4 units, I would suggest you see if you can get 3 or preferably all 4 units to agree to call an AGM which would then be conducted with a mediator present. I think you should be able to find a free or cheap mediation service – local governments often put some money into such things. It could be part of the call for the meeting that the chair (presumably has to be one of your owners. Can a non-owner chair in NSW?) would generally defer to the mediator in the conduct of the meeting. I would be presenting this as a way for everyone to have their say while making sure you get everything back on track to be run on a sound legal footing, which is surely in everybody’s interests.