The tenant did keep windows open and run a portable ac in that room to try and dehumidify and get rid of excess moisture but didn't make a difference. all of this is a long winded way of asking:1.

Because there are newbies on BP who look to these kind of posts and feel they're inadequate...or who go and dive into dangerous deals in hopes of replicating this and end up getting scammed.If it's too good to be true,it probably is.I'm not a hater,I just like being the gentle voice of reason/caution in the midst of rabid euphoria.If it's a real deal,more power to him.But we don't know that until he gets back on his own thread and provides some meat on the bone.

When the rains came this allowed moisture to come in from the crawlspace thus affecting the living space with some mold especially that time of year (summer).

Being that it’s vinyl backed is protects the subfloor from a certain amount of moisture and there actually isn’t very much carpet so it’s fairly easy to clean.You could try commercial flooring stores and see what deals they have left overs from bigger jobs.All the best with your project

Red wine stains, cutting directly on the countertop, moisture issues, etc.

You can find some on sale or gently used.

In Oregon we did mainly timber plays so bigger dollars.. one of my star's was a 700 acre tree farm we paid 1.8 for i busted 10 lots off the front half that i sold for about 1.5.. we held the rest of the land logging it gently each year bringing in about 30 to 50k net in log revenue ( commercial thinning is what they call it). 

Moisture is trapped in the wall which can create mildew/mold issues inside plus it decomposes the brick itself, and rather quickly too.

So when they installed your tile with wet mud, the slab has drawn that moisture out causing it to shrink and crack.

If you need to replace a piece of allure, just hold a hairdryer close to the seams on low and be gentle with it, but the pieces will easily separate.