Nothing was signed and there are no legal remedies involved this early in the process, so no harm done should things not work out.It's not fool-proof but it's less risky than most other aspects of REI 

If you can fill the vacancy it might be best to operate under a “no harm no foul” policy.

It is doubtful that anything harmful would come up, especially considering her age.

She also threatened the manager with bodily harm, and had some of her "thug" friends show up at the property to intimidate.

The buying opportunities in that period were crazy from other less capitalized/experienced owners at that time, one owner got a failed class A for 1/2 the value to build 5 years later for example.We typically perform very well in down markets, so not to wish harm to anyone, I am excited for the next cycle we’re buying makes much more sense again.  

I mean: you're not purposefully trying to cause harm to anyone else's earning potential. :) Hmm.

I brought up multi family deals for your loan because I look at this house as a deal with more potential to do harm than good.

Position the televisions so that they are out of harms way. 

So it's just spelling out what the co-op commission is so we're all in the open and the seller understands that I am compensating the other agent fairly and not harming their chances at a solid offer by going cheap on the co-op fee. 

My first step would be to refuse those two requests and offer to let him out of the lease "no harm, no foul", if he is not happy with the arrangement.