For example, the poor performing stocks in my portfolio, I would dump the same year I sold real estate as this could offset capital gains from a real estate sale.  

All of the homes in the neighborhood are $300,000 to $500,000 and ours is the third largest one in the neighborhood at 3008 sq., on a saltwater river, waterfront community.

You can buy performing notes for all the benefits of amortized payments w/o the hassles of termites, toilets, and tenants.

I'd recommend performing the escalation to the loan officer's manager, ask for someone who knows what they're doing, and see where that takes you.  

Then the banks will require details on the scope of work performed.

What I understand to be the biggest difference is the bank that gives the loan maintains responsibility of the loan and doesn't sell to a third party.

My advice is to stay away from commercial property until you understand how it's valued, and can perform a proper due diligence and valuation.    

You will be the new owner, but still perform a title search as there may be unforeseen additional issues.  

If the testing was performed by a home inspector, hopefully they are Registered Radon Testers with the State, and if so they are required to report it to DHHS on a monthly basis.  

What I would want to do in that situation would be take the performing asset to the local bank, get a 6% interest loan with a 15-20 year amortization, and then go to private money/HML for the rehab project, then refinance it when it's producing.