I think a focus on humanizing the relationship between tenant and landlord is a great place to start.

They think they are God's gift to humanity and do not want to pay anything.

Your business entity structure needs to be based on an entity which is not a human person, such as a trust.

If the neighbor isn't willing to do something, I would call the Humane Society and file a noise complaint.

That being said, in every state I know of the landlord is able to set maximum occupancy at whatever level they desire, as long as it does no exceed local ordinances. that means you should be ok to say, a 3 bedroom has a limit of 4 humans/people if you so desire.

Try habitat for humanity in Paterson No, they are technically located in the Wayne area.

Noone who ever occupied the house had any experience with bedbugs; the current tenants moved in of course with furniture, furnishings, clothing, etc, and work in a field with close contact to humans. 

LOL.your not being pessimistic your being a realist.. not a dreamer being sold how great this can be.its a big boy game in my mind you are going to have losers.. and the bigger players can average them out.. individual investor who step into the space with little or know knowledge are in for a real roller coaster ride.. and your going to get schooled in human nature and the way a defaulted US borrower thinks and acts..

The problem is that there are so many cases that don't fit that box, so there needs to be a human element to navigate the complications that come up.

NO one can be in the rental business and be absolutely 1000% perfect simply not possible its not possible in the human condition of any tenant base.