My best advice is understand zoning and density to make proper land valuation, then proper DD.

We recently had an ESA Great Dane (with all the proper ESA documentation) that bit another resident. 

I live 2 blocks away :)  I had another one in Portland proper same thing you could not get in it stunk so bad you could smell it from 15 feet away as you walked up..

Quote from @Garrett Brown: Hey Kyle, you are taking the proper steps by switching in the long run.

If the lease is ending be sure you have given the proper notice of non-renewal of the lease.

These are the options I'm currently exploring:Do the proper notice on the 3 month to month units and stagger the increases, starting asap, so I only risk losing one tenant at a time.

Since I have done both of these things wrong and right in my past, I can tell you keeping the client happy to a certain extent is a lot more cheaperWe have found that setting the proper expectations right up front of what we will and will not do seems to help solve going down this never ending rabbit trail sometimes.

     Firstly, this post is for anyone and everyone who hasn't had the opportunity to properly introduce themselves in the BP community.

If the unit does not comply with local codes (like proper egress, zoning approvals, safety standards, etc), it cannot be legally rented regardless of how it’s marketed.The safest course of action forward, would be to bring the unit up to compliance with chicago's zoning/ building codes before attempting to rent or advertise it. 

Seeing as how I'm not sure if you are communicating this properly, but one could be crossing ethical / legal boundaries --- maybe.Personally, the rental activity for that sort of property and tenant would not be worth the time.Thanks for letting us know.