If someone is prudent enough to have obtained renter's coverage of their own volition, it is a demonstration of responsibility.

My door fell off its hinges" - highly unlikely that the door fell off of its own volition.

And if everybody of there own volition contributed 10-40% of their income to a charitable organization run by volunteers for the administration of social services, yeah, our financial contribution to the greater American good would go a lot further.

Also if there's a late fee you can demand payment via invoice if they do not send it on their own volition with their regular base rent payment.

I've had my money in stocks, but the volitity on a day to day basis isn't something to shy away. 

So as i have wrapped up my landlord career i just wait for tenants to leave of their own volition and then spruce it up and sell it.. granted you lose some neg cash flow.. but if you really want it sold. you need it avaliable on demand and open houses on weekends etc..

He has managed to make a 6 figure income doing AirBNB arbitrage", hmm sounds good but according to his own volition he makes 7 figures selling his AirBNB course.

Otherwise, anything done on their own volition is their doing and the costs should be burdened by them. 

@Mike DymskiGreat point but lower NOI is up to the volition of property owner, the potential is definitely there, its just my choice I am not tapping into that potential.

If one of them wants to leave of their own volition, let them go but make sure it's documented and signed by all parties.