For work, he inspects offshore oil rigs which makes him an absentee owner.

I feel like this is fair bc it is when their lease ends, and I'm not responsible for giving them any extra time while they were trying to sort things out with their roommates to sign a new lease with me.Honestly, at this point, I'd rather have them out of my property as they've been difficult to deal with during this process and other items have popped up in the past (e.g. they've clogged our kitchen sink by pouring excessive oil down the drain, broke the garage door within a year of their first lease, etc.)My questions are:-What happens if only 2 of the tenants vacate when the lease ends and stay for an extra week?

And make sure they understand to NEVER pour cooking oil/grease down the kitchen sink or the toilet. 

I'm currently the GM for a welding automation company in the Oil & Gas market that is tied into a larger international manufacturing group. 

I bought oil based primer, which helped to eliminate strong smoke odor.

After the inspection report came back, the house will need the following work (and this comes directly from the inspector): 1-The two oil-fired boilers must be professionally evaluated and serviced by a licensed HVAC technician to determine the life expectancy and the evaluation of the firebox as well as its efficiency.2-The asbestos in the basement must be professionally encapsulated or removed.3-Need to have a licensed plumber REPLACE the corroding electric water heater for the rear unit.4-All items listed in #8 that are asked to be replaced, should be professionally replaced or given appropriate credit for replacing by new owners.5-Need to have a licensed electrician examine, address and replace all wiring throughout the house and garage.

Do the tenants cook for themselves or does the operator have to supply all the meals?

I am wondering if there is an easy way in Cook County to find the amount of legal units in a multifamily property without pulling a zoning certificate.My situation:I have a property that is being marketed as a 5 unit, 3 units main & 2 units coach house.

Say, there's an oil tank in ground that spilled and contaminated the soil. 

Also check for any environmental issues: lead, radon, buried oil tanks, old gas tanks, asbestos, meth lab, etc...