Let's say an owner disconnected service voluntarily and even has proof they paid a final bill, they often won't realize charges are still accruing - especially if the bill isn't going to the correct address (I'll save my rant on the administrative incompetence of utility companies for another thread).

We get a cooperative occupant who voluntarily leaves the property without causing damage to it and they get some money to move on with their lives.

Would the tenant's renters insurance cover illegal activities like pot grows or meth labs that might severally damage the property.  

Raise the rent on both and see if one balks and leaves voluntarily.

See if you can get one of them to voluntarily leave.

I have had issues like them asking me to move a sprinkler in the yard, put a bucket under a leak, make the bed because I didn't have time, we will bring a new coffee pot over tomorrow, etc.

COBRA is a health insurance program that allows an eligible employee and her dependents to continue receiving health insurance benefits when an employee loses her job (or leaves voluntarily). 

I am relatively new to investing but it sounds to me that there are too many people trying to stick their hands in your pot.

If you want to voluntarily expose yourself to additional risk (based on actuarial data, not anecdotal evidence about dogs you've personally owned), then that is your right as a business owner.The issue is that this breed comes with it an inordinate amount of risk compared to the relatively small benefit of allowing them.You've heard the reasons people (and their insurance carriers) have for excluding them. 

But if the tenants voluntarily leave, of course, this would obviously not be an issue.The physical location of the property will be able to provide you with an idea of range in rents as well.