He is now saying it's not noted on the property inspection form that we went through when he moved in (The forms I use have no space for A/C, only heat which was checked as good).

I didn’t know this and the Indianapolis heat caused the flooring to swell and buckle.

One bedroom/closet the cigarett smell is strong especially when heat rises and the smell is trapped in the carpet. 

I have a property under contract that I am penciling out my thoughts for the SOW before I bring over contractors and I originally thought I would have to remove it and install a new ac/furnace but my interior designer...

Even brand new HWF will have a little noise, which will also vary through the seasons with heating and humidity.The squeeeek-no-more screws work when you don't have access from underneeth for example on the second floor. 

The building provides heat/coolant.

They usually go into specific detail about every element of the physical construction.

Then I take in account several elements like location, rent, physical status of the building, zoning, and responsibility of utility payment.

Nothing on the West Coast will prepare you for Milwaukee winters and heating bills. 

Roof, HVAC, plumbing, electrical, kitchen, bath, walls, floors, foundation, ceilings, etc.I have found that what costs is when the entire house needs to be replumbed or  there is no heating and air, or the roof is bad, or the floors are falling in,  rather than the cost for a bedroom rehab.Then again, I buy foreclosures and they tend to be worse than regular housing.