That's like giving a compulsive spender a new credit card, he will continue his same bad habits.

So, expect that going into any loan situation, but don't over-estimate the impact of this on your credit when it happens alongside otherwise healthy, wise financial behavior.

This would be hard for me to tolerate and they would get a firm talking to that this was unacceptable behavior and if it continues she can expect a non renewal if we can't keep it professional. 

Lastly, after you receive advice from other Chicago area SLH operators & the local municipal agencies that will not only save you time but direct you towards ways to save you money, you are going to likely want to register your business as an LLC with the state and obtain the proper small business renters Insurance policy under your LLC’s name (if its just a 2-3br operation the policy monthly premium  cost will be very low and will shield you as an individual from the very probable situation of being personally liable for the behaviors, damages, & actions of a traditionally high-risk short-term tenant group bc no landlord’s homeowners insurance policy will cover any damages or personal liabilities that will occur when they discover the nature of the operation.

If it's a longer lease, then I would keep a close on eye on their behavior and use one of the clauses in the lease as a reason for termination if they break it.

I realized that I cant judge the behavior of a person even if they passed all the screening test, rental agreements and stuff. 

WITH that skill, well it will be obvious a PM has that skill set because they will never present you a problem without also having solutions or suggested solutions right along with it, because they don't fear the conflict and solve problems almost compulsively.  

If the tenant is paying their rent, is not wrecking the home or other unwanted behaviors why not have them there? 

Now it’s more like one person a week.So, TL/DR, renter behavior has indeed shifted a bit — the question will be if it holds!

NOWHERE in the Bible does it say not to use debt.It also speaks to the behaviors of a woman of virtue in Proverbs 31.