It sounds to me like you have four other owners in exactly the same pickle so it would be worth getting together with them to speak to a specialist strata lawyer. That aside, I think it will become a matter of getting the Owners Corporation – that's all the owners – to a position where they realise they are better off accepting the terms of the proposed by-laws than they would be rejecting them. Perhaps a small payment to the sinking fund to clear this up might be in order (with the threat of an expensive court case with no guaranteed outcome sitting on your other shoulder). How many units in the block, by the way?