You don't get much time before it starts to look bad and the whole time everything behind it is getting worse because moisture is still getting into the walls through cracks and gaps

If you see mold inside the house on the ceiling/wall you have a moisture problem.

They hold moisture which will destroy the brick and mortar, once cracks open they will grow inside them and make them far worse and there is also the rodent issue mentioned already.

The wood they use has been seasoned properly (below 15% moisture content, you can buy a $30 tool to measure it)3.)

I know the list will be long, so please be gentle!

It's less susceptible to moisture-related changes and paints up nicer than common wood species.

I was kind to them, gentle to them, understanding when I told them that I understood why they couldn't pay their rent, but this is a business.  

Hello,Our property located in Fort Worth,TX had a foundation repair after which it was recommended maintaining a constant level of moisture in the soil near and under the house (by placing a soaker hose on each side of the foundation no farther than 12'' from the edge of foundation to water DAILY during hot and dry months).Our property management company wrote a letter to our tenant explaining this, however I can not guarantee tenant complies. 

I am currently working on a condo where moisture got in, walls looked ok and after closing we detected mold crawling and spreading in the back of the walls 4ft high!

This kind came with the padding already attached and I just put down a moisture barrier under that.