I determined the property characteristics that attract the segment with the behaviors necessary for a reliable income.

Once inside be wary for large and small dogs that may come out of another room quietly and try to bite you.

The neighbor who is living there has developed a pretty bad mental health issue and has become very erratic and displaying violent behavior even threatening to kill me and my tenant.

Never EVER accept or agree to accept any tenant without properly conducting all points of discovery and creditworthiness [ability to pay], background [character] data [patterns of behavior in past residences], etc.

The exiting tenants had 2 dogs and did pay a pet fee.

I suspect that is driving some of the behavior you are observing.  

Most of our renters are for Okemo, but we see a mix.Our house is 4 BR, 3 baths and we allow dogs.

In short, they are creating bird dogs with their programs throughout the country.

And no, I don't have a coaching program so I don't have a dog in this hunt.

Sorry to hear that it's been a dog for you and your partners.