It's best to consult you State Historic Preservation Office as well as your local city council regarding your specific project.

I was still monitoring Facebook and seeing people with success stories.

Sad to hear this..my simple advise is to consult an attorney ASAP.

I guess that was my "Quick start consultation", they said was worth $397.00.My original question was why on Zillow does it say "N/A" when I look at recently sold homes trying to find what they sold for.

Consult an accountant, but your write-off could probably be your purchase price if they are going to use the property.

Have that person introduce the woman to a local real estate attorney who will give a free consultation and provide good advice.Do not panic, but move swiftly to protect her.If she is within 30 miles of Palo Alto California, pm me and I'll provide you with a couple of attorney recommendations. 

I am a foreign investor, based in South America and travel very often to Detroit to monitor my investments.

But again you'll need to check with your local building department and may have to consult with an engineer.https://images.homedepot-static.com/productImages/...

How does one monitor the rehab of a property from out of state?

All disclosures - I'm not an attorney nor insurance professional and you should consult yours, etc.