Does the lease address this issue.

My concern is I'm in Chicago and I see  a lot of low cost 2 flat and 3 flat buildings in the west side area or areas still rough.

Sometimes this approach can gain the respect from others with how you addressed the situation because they know you could have just filed the complaint with no warning. 

My only concern with stepping forward into real estate investment is that I don't know what I don't know.

Many topics of concern will be covered on a daily basis. 

Mine concern with this deal is how skinny the profit margin is.  190k x .65 $123,500 should be purchase price before deducting for rehab costs. 

To address your cap limitations, there are lenders that will have specific low down buy and live in programs with competitive interest rates that allow you as an owner occupant to finance a 4-plex as long as your live on site for a full year. 

Also might need to get a business license(occupational license) specifying the new address for the business.

All of the HOA questions were answered negative, meaning no HOA currently.My only concern is when I'm selling I still have to mark YES to this question and how do I explain this.My agent feels this is not an issue and I made my offer.

From what I understood according to this article here https://smallbiztrends.com/2014/03/register-busine... foreign registration wouldn't apply in my case, since I wouldn't have a physical address or employees or a warehouse or a physical property I buy and hold in that state.