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. 

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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.

It might be a good idea to have your lease forbid blocking windows with foil, or other opaque items other than curtains or commercially available window blinds (that are not flags or political).Drug dealers, and fake drug dealers tend to block windows so no light can get in, and no Police Officers can see in.As far as flags it's not a proper venue for National flags, and gives you leverage in case someone decides to hang flags offensive to some (such as public display of WWII Axis flags, or socio/political flags) that might be detrimental to your rental business.Good Luck!

If you read through all their fine print, you can even figure out what their end game is.After you apply (and provide all your personal info and SSN by the way), they’re going to charge you a 1% fee for “loan processing before the loan can be set aside for disbursement to borrower” (yes I know that’s a little hard to understand but that’s how they typed it).Bottom line, they’re going to try to get money from you up front, but you’ll never get a loan from them.Tips for Avoiding a Scam on BiggerPocketsYup a joke is right.. the English is obviously written by someone not from the US and not in the lending business.Another fact is ANY mortgage company offering loans that is based in Nevada needs to be state and NMLS licensed with their license prominently displayed on their website. 

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

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

For my own growth of understanding how were you able to come up with some of these numbers and i seem to struggle with working to numbers like you just displayed.

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!