We touched every inch of this house.

Do you think a GC would want me to itemize the whole project down to the # of doorknobs and linear foot (and inches) of framing?

I renovated the unit by replacing 32 inch doors to 36 inch and redid the bath so caregivers could nearly enter the shower area along with a wheel chair.

They put gypsum boards over real tough southern yellow pine studs, then manually put on a brown coat over an inch thick, then a thin layer of egg shell finish. 

I suggest putting in at least 4 inches to cap your building and improve energy consumption, At the time of the tear off coordinate renting a blown insulation machine too and you can add insulation from the roof into the attic/crawl space above the ceiling level to avoid interior repairs.

I once had an inspector leave a pile of exterior masonite siding about 4 inches high.

., landlords doing annual or semi annual turns get in the units and can go over them every inch, inside out, but not those with very long term tenants)...

I got one of the 14 'inch grill lighters and that got it. 

That might get you a couple more inches of clearance which could be all you need.

Inspector said house needs to be raised about 2 inches so board can be replaced .