She had been living without the carpet and just walking on cement slab for a while before she moved out according to the neighbors. 

Well, just got back from the dentist, so I'm under the influence, but still;1.

thanks k marie, its cement underneath and the living room.would you go with the 75 cents stuff in living area?

Repoint the whole chimney (giving a great new look) replace chimney crown with Portland cement, spray with siloxane HP clear set water repellant (day or 2 after work is done and after cleaning pointing work).

Just keep in mind that you will probably still want to insulate whether they pay anything or not - so don't lose face asking and them saying no.I had a pipe burst last year - stunk to be me - paying a plumber is like paying a dentist - painful but has to be done.  

Problem is, when we removed the old wood flooring (square blocks), there is leftover adhesive (cement?)

The risk  seems low at first glance as the triple net side of the building is a dentist office owned by a corporate dental company with 7 years remaining and two 10 year options.

So far the top two options I have come across or have seen on neighboring properties are stucco or siding (vinyl or fiber/cement).

Nobody needs a dentist they are welcome to take care of their own teeth.

But a situation happened just recently to cement this.I'm dealing with a headache of an inherited tenant who I'm probably going to evict.