Take a look at each room individually, mentioning both the structural and aesthetic elements.

It will get interesting this summer as those northern cities heat up. particularly Chicago with the threats of violence already in place..... 

When the tenant turns in keys, we conduct a "safety" inspection within 24 hours to ensure the unit is secure, heat or A/C is adjusted, the unit is vacant, the level of cleanliness, etc.

@John Ellis The water and heat is paid by the landlord for both apartment.

This is the simplest method, but it also means your tenants are more likely to abuse the utilities by leaving windows open with the heat or A/C running, leaving lights on, ignoring the toilet that constantly flushes on its own, etc.3.

Hopefully it is just an element.  

In addition, owner loaned us $100,000 at 6% simple interest for one year to make major repairs (installed heat pumps, replaced boiler (for heating water only), replaced some siding and major roof repairs.)We were very clear with each other what we each wanted out of the deal.

It will still be expensive (especially if your heater is gas), but may be cheaper than updating all the gas lines buried in the slab.Yes, converting to electric will be expensive and using electric for heat / hot water is more expensive than gas, but both can be converted in a day or so without tearing up the slab or having the tenants move out. 

Has, heat, water, taxes etc.  

Just add deed prep and transfer taxes.I would not avoid properties just because of the ground rent element.