They did thorough research on the property interests, including contacting the township to inquire about any vacancy fees, unpaid water bills and such.

Well you can test the water by setting your prices higher for anything beyond say 6 weeks.  

When I was younger people always cautioned me against renting apartments where heat or water was split with tenants. 

Come on in the water is fine 

Inexperienced boat drivers can easily run the boat into shallow water or seaweed and damage the motor.

We have had some very wet weather here and I have discovered a bit of water on the 3rd floor unit sheetrock, and some water at the wall level (same spot on the building) of the 1st floor unit resulting in some damp sheetrock.

@Bill Brandt good points...when they run out of water in Vegas, they can relocate to Columbus...we have some to spare ;) 

Can the health and safety of this duplex meet VA - water heaters strapped, no leaking plumbing, roof great? 

I know for a fact that she stole the refrigerator.  

I always see water leaking under sinks, toilets running, roof leaks, a/c or heater not working.