Once you get it, look up the process for filing a temporary restraining order against that person / those persons, and do it. 

Should the person connecting these two get a fee?

It could be that the property had the lower level finished since the last appraisal was done, but the only way to get this confirmed is to have a licensed appraiser go out and assess the property in person.

Hello Arnold, I personally used my 401k to buy my home back in 2017 so I know from experience its a pretty easy process.

I think it will answer a lot of your questions.https://store.biggerpockets.com/products/first-to-a-million

Hey Nicholas, what type of loan product are you requesting in this case?

I've run out of options from my side on how to "get around" this zoning issue, the buyer may have some options using some "personal" connections.

@Christopher Lynch Personally my top three areas would be the North Conway area, Lincoln Area, and Gilford area. 

I am willing to give the person who goes to the property commission if and when the deal actually closes.

I don’t know the individual personally, but the people I do know managing multiple units work 6- or more hours per week.