Install vapor barrier, fans, or drainage pipes to remedy it.

He also called an attorney that told him to go to the ER and he would be suing my mother for their "illnesses".At this point I need him out of the house ASAP so that I can try to short sell it if possible or risk her being denied for Medicaid.

There is a large cover or sheet under the home, which is probably some sort of vapor barrier.

Unit 2 was nicer, large family, but head of house was already telling me about her being behind and willing to pay extra $100 each month to catch up.

The next step in the slab process is installing the post-tension cables and vapor barrier.

The cause was not determined.It is recommended to make modifications to the attic ventilation system in this home in order to meet minimum requirements -inadequate soffit venting.The inspection has identified an active plumbing leak at joint within water supply piping under home as seen in crawl area.The access opening size (for small crawl area) is not adequate to allow for easy entrance to the crawl area.The vapor barrier/plastic covering on floor of crawl area needs repair to provide the intended service.

@William Tong The only valid argument to be made for her being "slippery", (if by that you mean dishonest) is that she brought the buyer and double-ended the deal.Since you're an agent, you should be able to find that out easily.If she double-ended it I would consider taking action through whatever means you do that kind of thing in SC. 

Assuming it is all concrete, do I need a vapor barrier **AND** underlayment beneath a floating engineered hardwood floor?

The turn around time was caused by her being uncooperative.

Toss all incandescent, fluorescent, halogen, mercury vapor, etc.