You’ll need to install a vapor barrier in the slab where most do not have them.  

The orange, green and flooring stores all seem to carry the same brand.https://www.lowes.com/pd/QuietWalk-Sound-Absorption-and-Vapor-Barrier-360-sq-ft-Premium-3-mm-Flooring-Underlayment/1001065844Thanks for reading!

Would it be alright to ask tenants to either smoke recreationally only in the back yard unless they are using a vaporizer [or have a medical problem that would make going outside to medicate difficult]?

This particular home I know I'm going  to run into some kind of problem because the basement is mostly finished, but even I know it's not to code just from what I can SEE (let alone vapor barriers and whatever). 

There are a few different styles that should work fine for your ap.As to the Allure coming up because of wet concrete, it may be because the slab is supposed to have a vapor barrier under it.

- Up-front cost difference- Energy (heating) costs- Comfort- Resale value impact- Anything else that's relevantWhen I say crawl space, I mean a non-ventilated, moisture-protected (vapor barrier, waterproof spray, and sand/gravel), heated space, NOT the dirt-covered, ventilated space of old.Thanks!

Take a look at this link. http://www.homedepot.com/p/DRIcore-7-8-in-x-2-ft-x...You can also install a vapor barrier to prevent cold air, moisture, etc from coming up through.

This is another example.If the brick is a veneer in a cavity wall system then, yes the brick must breathe, absorb water and moisture and also be able to expel the vapor also.

I've listed below the order I plan to attack things in, let me know if this sequence makes sense:Resolve excess moisture under house (minor grading issue, gutter required, possible plumbing leak)Repair minor roof leaks (repair flashing, seal leaks around chimney, replace tree-damaged shingles)Trim trees away from houseInstall 50 concrete piers and level foundation (foundation had work done previously but shifter due to excess moisture)Install vapor barrierAdd structural roof support beams in attic, add insulationRepair rotten siding/soffit/window frames (mostly upstairs)Repair porch (replace rotten boards, sand & paint)Paint exteriorInstall central AC/Mini-split system (any recommendations on this?)

You could get the metal corner beads to rust from water vapor transmission thru the slab on grade.