That said, if the law does demand renewing an identical lease then I bet it also provides a remedy for your situation.  

Try the least toxic remedy first and if it doesn't work for you, move up the ladder!

The HGTV shows filmed in Canada (mostly TO) depict and strongly encourage abatement and remediation for asbestos and mould respectively.  

It may be well worth getting a legal opinion as to the seriousness of the issue and possible remedies. 

Who does an investor have to complain to and seek a remedy? 

Would a remediation crew fix just this?

Minor repairs, routine maintenance items and painting, decorating or other items of a cosmetic nature, no matter the cost to remedy same, do not constitute defects, are not a part of this contingency and shall not be a basis for the Buyer to cancel this Contract.

Mold remediation company is there now and HandyANDY is starting repairs in the morning after working to settle with the adjuster.  

I see you posted a few months ago so I don't know what your outcome was--but just for the record, w/ properties like these make sure you get an inspection contingency, and have a mold remediation specialist take a look at it. 

The bank is entitled to be indemnified, made whole again, according to the terms of the agreement, which is the basis for the bank acquiring the title under the sherriff's deed.At a sale, a third party as a buyer, acquires the property as a buyer, the interest acquired in the property is an ownership interest, not a collateral interest.While time periods may be limited by states for a civil suit to be brought by a borrower against a lender, basically for reaping greater rewards than originally agreed to, at the expense of the borrower/owner, borrowers may seek such remedies.