I realize this will very likely require more than 1 appraiser, as the appraiser would have to somewhat know the subject area to perform a desktop appraisal. 

Yes, @Geraldo Rosario, but depending on the property and lender, they may want to see 2 years of performance from the asset.

Do you feel that there is an opportunity there for someone that can still tap money and perform good underwriting? 

@Gary L WallmanYou keep the buildings and the loans that comes with it, but I keep everything that the tenants pay forever ; )  yes I recognize that the building is also an asset, but an empty  and non performing building is not going to attract a great price, this lowering its value.

Taking time to pause and analyze the performance of my holdings has been eye opening.

Some of these people will re-perform.  

The length of the bath exhaust pipe can impact performance as well.

Is this property's historical performance consistent with your estimates? 

Or just perform option 2 and see what happens during the rainy season and winter?

Worst case scenario is being sued for specific performance, or being sued for the delta between your contract price and the eventual sales price.