I can proudly say I did not spend lots of money on fancy ring tones, as I never answered my phone for unknown numbers (which you can actually set your iphone to send them to vm btw).I get calls constantly about people wanting to buy a property I have not owned in 5+ years as well. 

We've installed the Moen leak detection device, which detects leaks both hot water and cold water, and monitors water usage and gives you weekly reports.

If you get front loading units tell each tenant not to overload the washer because it will cause the seal to give and make the unit leak.

If the pluming is working and there are no leaks in the roof then I don't replace them.

We have had these type of leaks lots of times.

I bet not many sponsors who are leaking oil would even consider that.. etc etc.. thye video'd it so you can probably ask them for a copy of it.

For the leak, drywall replacement and so on I offered to pay partially I was not legally bound but I had a booking and needed it fixed fast but I didn't pay much about 20% of the fix for the drywall.

Recently, I received pictures of a water leak in the kitchen ceiling, which appeared to be coming from the bathroom on the second floor.

with a couple iPhone ones mixed in.

Take a video of the home with your iPhone.