When I exercised my rights under the JV agreement to cancel, have my principle returned, along with interest owed me, it started out with radio silence, then turned to downright lies. 

I chose 21222 for this exercise.

You certainly won't get anywhere near the full market but you could maybe get enough to browse a sample of listings and/ or comps.  

If the option to purchase isn’t exercised, he can sublet the deal again to another tenant/buyer, possibly with increased rent and purchase price, depending upon the local real estate market. 

Gross negligence refers to an act taken without exercising even the most basic amount of care owed to others, including guests and the property, itself.

Can you provide a sample payoff letter you prepare or have received from your PML?

With the amount of income from working, I would still be working if I went in to syndications and those door counts are meaningless.This is a healthy exercise.

I would recommend creating a market report in PriceLabs for a sample property and then looking at how nearby comparison properties are doing.

Here some samples from our good vendor in CA at Porcelanosa below.

Seeing 3rd quarter 2019 had zero sold, recognize this graph is on a small to very small sample size.This is like buying a $50k car that depreciates to $10k then due to an event (such as Covid) the car is now $20k and saying the car has not deprecated.