It finally stopped when I installed a monitored security system and front door and interior/exterior cameras, and sold the system with the house.

The water issue is simply an important thing to be aware of, so you can monitor it, if public opinion turns the Phx market sour, or if Lake Powell, Lake Mead, Lake Pleasant or others disappear, the issue will be elevated, which will in turn change public opinion which can change the market.I invest in Arizona, because we have great returns, great growth, and landlord-friendly government.

What to look for is credibility, Technology where the company would provide a portal for the investor to monitor activity, and process of onboarding, managing, and exiting tenants.

Hello, We have come up with a way to digitally monitor the electricity use of each unit and email them each the bill every month.

More property owners should understand that rentals are NOT a passive investment like mutual funds.Issues to Monitor (politely)1) Monthly P&L Report - if they don't consistently send it around same day each month, they are not organized and it doesn't bode well overall2) Monthly Owner Draws - should come about same day each month, hopefully via ACH, with statement showing how calculated3) Maintenance - question EVERYTHING! 

Those residents have regular home health care visits and the homes are equipped or oxygen, medical monitoring, access by contracted professionals (meal delivery, nursing, physical or occupational therapy),etc. the residents have private bedrooms and bathrooms but share living and dining areas. 

I also monitor Colorado.gov for state issues and every Realtor associations.

From walking in the doors and monitoring local market.

Both can be remotely controlled/monitored.

And with that many adults, it may even be tricky and you could have trouble monitoring it 24/7 (and, of course, they will likely deny the unauthorized people live there).