Ran water in all the units and found units 8 and 12 had active leaks to their drains. UNIT 8 While running water in unit 8 we found the when the toilet was flushed water began dripping into the carport leading us to believe the wax ring has failed, also when running the bathroom sink in the full bathroom water started dripping into the carport as well which indicates a break in the cast iron drain for the sink. In order to do repair we will need do open drywall in order to expose the drains UNIT 12 While running water in bathtub we found water began dripping into the car port leading us to believe that more then likely the waste and over flow and P trap needs to be replaced. Explained we will need to first open drywall behind shower to expose plumbing to identify exactly where the leak was coming from