Many landlords don't do what is necessary to mitigate the risk of mold and moisture in the home.

Basically I am wondering if anyone has ever had something happen to a property that created an issue for the tenant to stay there until repairs were made. The unit is roughly 500 sq ft and has two adults & a ...

Did you check her ceiling with a moisture meter?  

Brick and mortar need to breath, especially if any kind of moisture gets in because it will be trapped and degrade the mortar.

I would pass.....Couple of issues/concerns...... he's kind of running a business out of your unit, which is never a good idea to let tenant do...... can start small and innocent but then keep growing and expanding.....Growing weed takes a decent amount of electricity, heat and moisture.....all can be bad for a property if not contained.

San Antonio is notorious for a little shifting because of the moisture differences in the ground underneath.  

Easier to deal with now before fixtures go in than later when your floor sags from trapped moisture.

I guess all that moisture/rain does a doozy huh?

During the rehab make sure to go in and eliminate any potential source of moisture that may be causing the mold.  

The locking mechanism is also water tight to prevent moisture from seeping through to the sub floor and you will then be able to run it through the whole home including bathrooms and kitchens.