Any comments would be appreciated on how to remedy this situation.

Was wondering if anyone has a remedy or experienced any trial and error ways of getting rid of it?  

I like the idea of a simple written agreement saying you pay to remediate and they pay if its new or they desire a more extensive rebuild but I don't know how you would write that. 

Sample belowTO:and all other occupants in possession of the premises commonly known asaddress___________________________________city of ______________county of ________ state of ________________________You are here notified that your account is delinquenct in the amount as detailed below:Rent due: __________Late fee due:_____________You must hereby instructed to pay said rent in FULL within 3 days or to vacate the premises within three (3) days of service of this notice or your tenancy will be terminated and the landlord will be entitled to all remedies relief and damages allowed by law including but not limited to recover rents, court cost, and attorneys fees.

If the only default remedy for the seller is to keep the buyer's (wholesaler's) earnest money, I don't see a problem with this verbiage.What do you think?

The LLC would be formed in a state where taxes make sense and probably charging orders are the only creditor remedy, even though there is a chance other state's law could apply.

None of these are deal killers but termites and foundation problems are probably my least favorite.Most things are not an issue, but there has to be room in the deal to remediate any of these problems as most of them are more costly than simple cosmetic concerns.

In your case, you already have firsthand knowledge of the potential danger and while I'm not a lawyer, I would think you might be held accountable by a civil court if you don't take steps to remedy the situation before someone else gets seriously injured.

The purchaser shall have the same rights and remedies in connection with the execution of an order for possession and the disposition of personal property following execution as are provided to a landlord under North Carolina law, including Chapters 42 and 44A of the General Statutes.

I personally would add about another $25k on that estimate due to unforeseen issues (remediation, foundation problems, material cost/availability, etc ).