Selling without remediating the issue isn’t something that you want to do.  

The property is all around new construction, so the ceiling height is something that will need to be remedied in order to sell at that price point.

Looks like I need to instruct my rehabber to give the interior / exterior a 1:1 ratio bleach to water washdown before the new roof is installed, or to hire a mold remediation company to do the work.   

In Minnesota, there isn't even a redemption period when you default on a Contract for Deed.In Wisconsin, each of the remedies upon default actually give that to you. 

Let them know you plan to file the complaints and give them an opportunity to remedy the situation first. https://www.consumerfinance.go...https://www.lawinfo.com/resour...

There is some he said she said involved too and I’m not sure how best to remedy the situation because talking to Tenant B doesn’t seem to correct the issue.

Crawls have the potential to be remediated to reduce the cost of flood insurance.

Do as much cosmetic and remediation short of gut rehabs you can.

Needs to be gutted, needs new roof, new hvac, new windows, new drywall, fix water damage throughout, rebuild an addition, add a garage, add a 2nd bathroom, new flooring, new kitchen, new appliances, paint, landscaping, redo driveway, redo layout (used to be a triplex but is now sfh), remediate sinkhole, replace asbestos shingles with siding, upgrade electric from fuse box, replace cast iron pipes throughout, put in a pool. 

Sinkholes or remediated sinkholes can cut the value of a property by 30-50% so make sure your bases on covered on the sinkhole status of a property!