For the potential for "future contamination" you'd include a clause in the lease that addresses it and puts the liability & future remediation to restore the site on the Tenant.

The remediation was performed prior to myself purchasing it and I obtained the certificate with the closing documents.

Have you talked to any remediation specialists?

So the non-secured creditors likely have no remedy against Benjamin --- they may have some claims against the estate in general and limit the amount that goes to the beneficiaries, but that only matters if the decedent had more assets. 

Has anyone here ever done mold remediation.

If Borrower fails to pay these sums prior to the expiration of this period, Lender may invoke any remedies permitted by this Security Instrument without further notice or demand on Borrower.

The one that didn't was because there was a mold issue that developed during the time the title attorney was trying to get clean title, and the bank wouldn't drop the price to allow me to remediate the issue.What is happening with 2 out of every 3 of your contracts?

Realistically, I'll give them a 30 day notice of violation of their lease and how to remedy it.

If before the mid 70's you will run into lead based paint remediation issues which are now expensive.

Your only remedy against an unlicensed contractor may be in civil court.