How much should I pay this person to manage the project and hire subs?

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

Personally I would rather buy a rental property over a personal residence because I want something that can potentially give me cash flow every single month over a liability.

Should the person connecting these two get a fee?

This is agreed to in the sales contract.

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.

@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.

Long story short, I have 3 properties in my own personal name: Small multi-family properties (a 4 unit and detached garage bank, another 4 unit, and a 3 unit) that I had residential HELOCs on in the second position, with a fixed residential in the first position.