Is the mold located on hard surfaces or soft?

Evaluating using SFR model, it looks great on the surface.

A basement may be used for habitable rooms or a dwelling unit, regardless of the depth of the floor below grade, if the floors and walls are impervious to leakage of underground and surface water and are protected from dampness, and if the required minimum 13-172-130, or by other approved means. 13-172-070 Natural light.

I'm very conservative in the practice of my business but the most profitable deal I've ever done (a moderate 6 figure profit) - on the surface - looked riskier than the devil.  

Roads will be surfaced next week. 

Washing surfaces very well may not solve the issue.

The latter two have a harder surface for scratch resistance.

*Essentially the city of Houston is composed of impervious surfaces that resist the natural absorption of water, increasing the probably that a disaster like this will occur again.

On the surface, your logic certainly seems sound and you may have a decent case for getting around this charge.  

Tenting will kill cockroach and surface termites but not their eggs or sub type several feet under ground.