But a dehumidifier with a pump, there are remote moisture sensors and use a wifi plug and you can monitor yourself.have the pm check everything periodically if they aren't too lazy like this one sounds like they are..

Check your home insurance plan to make sure it's good enough for the time when no one is there, and think about getting a property manager if you have concerns about looking after your place during your absence.

You can get checks for it. 

I'll have to check out Wes Moss podcast.

I am a longtime landlord that has normally just rented my unit to individuals after I complete my normal background and credit checks. 

I think $500 is generous considering the wear-and-tear and issues you are facing.

Check out the Midwest mate.Ohio, Michigan and Indiana.I'm bias toward Ohio but lot's of attention in our state last few years.Decent B class properties for sub $100,000Much success

I recommend a simple spreadsheet to check your math and it will make it simple to adjust each year.End the complaints.

As for data, check out Census Bureau stats and local economic development websites—they're treasure troves.

I would definitely check it out from time to time.