So many of the dumb laws like SLC's mandatory inspection have been overturned by their good work.

The party who joined title in the QCD could bring a challenge but most likely they will simply be afforded their legal right of redemption and will not likely be able to stay the action or overturn a ruling to the same.  

Judges take a very, very close look at transactions with elderly people and even if your deal is reasonable it can be overturned in the end.

Petition the Court of Common Pleas to overturn the sale, revert the property to the former owner, negate the tax sale, refund the high bidder what they paid including fees, recording, etc,, and reinstate all liens and mortgages.b. 

Then get the tax collector to agree that it's disclaimers do not apply to you and overturn the sale.

In CA, the trustee can overturn a sale.The OP didn't miss the lis pendens.

The last ordinance went  to RI supreme court and was overturned but the providence 3 unrelated persons ordinance was upheld in supreme court.

The VA is not the place to start, they won't overturn the opinion.

The California Restaurant Association and Engine 28 restaurant (owned by attorney Mark Geragos) sued to overturn the county ban.

Our only hope is the US Supreme Court overturning this and creating precedence to block government actions in the future.