Over many years of giving sectional title advice, I have seen a persistent theme of schemes charging levies on an equal "pro rata" basis, either for all expenses or for specified ones.

The root cause of most serious disputes in schemes is money. At the AGM, members have the opportunity to discuss, and have explained to them if necessary, how their money was spent. 

The executives in many sectional title schemes use fines as a way of discouraging rule breaking by members or tenants.