They may need to cut open the wall to dry it out and prevent mold growth.

China is natural resource poor and dependent on the rest of the world to fill that void, and with cheap labor drying up they will lose some ground on the manufacturing side. 

Contact insurance immediately and get that place dried out, fixed up and re-rented asap. 

The areas probed still seemed solid, but be aware that some types of wood destroying fungal damage will only be detectable once the wood has properly dried out.

TL;DR. I

This can happen due to moisture damage or improper installation techniques such as using too much adhesive or not allowing ample time for drying before walking on them.

When you do ceilings you only have to paper/ plastic the light fixtures and maybe some smoke alarms, you can hang plastic over windows, but the paint is usually dry before it hits them and wipes off easily.

I simply thought putting it out there in the Forum might keep someone from unknowingly buying something that might leave you out to dry.

You are a local investor with a couple properties, not a conglomerate, and you are looking to get one more and the open market is dry.

They rolled over on a deal that was pretty cut and dry in my opinion, and really let me and my client down after months of dredging through paperwork and underwriting.