I am by no means an expert on this, but given the fact that there may be some tension between the two of them during the divorce, if they are both on title for the house, I would make sure your documentation includes signatures from both parties.

This seems to be the primary issue with the neighbor and would hopefully would resolve the tensions. 

I was going to add into the agreement that I will provide these heating and AC units for the basement tenants but they need to make sure they call the PM for any issues.Property has a 2 car garage but I don't want to split it between tenants as this could cause tension.

For example, having a house chore chart that is built into the lease so it minimizes tension for dirty dishes, cleaning, ect. especially with 4-6+ separate leases under one house.To answer your question about targeting this group, I'd say put yourself in the shoes of a 20-mid 30 year old younger millennial professional.

Its feels like herd mentality.I remember reading an article stating the times (world wide) are similar to the tensions prior to World War I.

The top cord is under compression and the bottom cord is under tension.

I feel the tension whenever I visit the property.The neighbors I’m referring to are mainly the young men that live in the neighborhood.

Tensions flared, she's flaky and moved out.

I wonder if there exists a legal mechanism to solve this tension quickly.

Because of the tension from the dual closers, it makes moving suitcases in and out harder for guests.