From your description it sounds like this was mechanical failure or perhaps a faulty installation issue with the water meter and it resulted in an unusually high water bill. 

Not saying all PMs are bad news, just saying it's not unusual - at all - to have found you hired a bad apple. 

This seemed unusual seeing that there is properties for rent very close by in nowhere near as good condition zestimating for more.

Ensure photos show every window and door.Note any visible signs of damage to roof: __________________________________________________________________When walking inside the home, please pay attention to any signs of abuse, neglect, or damageDo you smell any unusual odors like smoking or pets?

Honestly, even if I hadn't found a tenant in June or July (which would have been unusual), I would not have chased them for more than the security deposit I already had that covered July. 

One of his best unusual deductions cited.....A girlfriend:The owner of several rental properties hired his live-in girlfriend to manage them.

Also something to keep in mind about google voice; I live in the Los Angeles area and have two vacancies available that were getting unusually high levels of attention online so what does google voice do?

Getting a mouse in the house is not at all unusual. 

It isn't that unusual for property managers to do an inspection with new tenants. 

How do you estimate for an unusually hot summer or a colder than normal winter?)