Does anyone have an attorney recommendation in Texas or other recommendations to remedy this loss?

There is a remedy for that but it is not cheap. 

It "was remediated with cap in place so there is still contamination at depth".

Soon after, mold was found in one of the self-storage units, requiring expensive remediation.

However, I don't think they have resources to investigate these sorts of things and that policies exist not to prosecute them because they are likely small claims (under $10k in my state) so that the aggrieved person can seek a remedy themselves in civil court.

No Specific Performance": Without the remedy of specific performance, you can’t require the seller to clear the title and complete the sale.

. § 704.44 the remedy for the rental agreement being void and unenforceable is the complete disgorgement of all rent previously paid by the tenant to the landlord.

The scope of work included:•Interior: Major pest remediation that took 3-4 weeks.

Does the contract require arbitration or remediation?

To remedy that, the carpets should be ripped up and sealant applied to the subfloor, at minimum.There are also tiles in the smaller upstairs bathroom that are lifting up and creating a safety hazard; putting a rug on top is not a sufficient solution.The house is in a condition that materially interferes with the health of household members.