Could also be the damage you noticed on the roof while looking at it from the backyard or moisture you saw under the kitchen sink that "could" cost a lot of money to repair.

I have it under contract for $150k + Closing Cost($5-7k)[not big fan of the closing cost] so far I have no hard money invested.During our due diligence we found a lot of moisture damage to the flooring due some leaky sinks and water heater and I personally think neglected maintenance.

Anything thinner will telegraph the highs and lows. 2) if you need or want to glue down and heat or moisture is a issue, DON'T use a pressure sensitive adhesive EVER!

Also buy a moisture meter to carry around when inspecting. 

People take shower some longer than others 365 x 46 x persons the amount of vapor moisture where did they go?

Solid wood expands and contracts to much with moisture changes to be used over concrete. 

We found 2 leaks that caused moisture behind the walls, leading to mold mitigation and an insurance claim. 

Tenant will notify Landlord in a timely manner of any damages or problems as they arise, including damages cause by Tenant, malfunction of appliances or fixtures, and water/moisture leaks and spots.

Mitch, you want the dryer to vent the warm, damp air outside for all sorts of reasons (these can include mold, moisture, rot, even health and more). 

Other red flags....Look out for moisture issues, too.