How does the middleman (investor) exit out of the sandwich lease option once the investor finds an end buyer to close on the original purchase price between investor and seller?

"Inflation expectations" is a purely rational and logical way to look at it, but let's consider that bond market buyers/sellers aren't 100% comprised of Vulcans, and that there are highly emotional and irrational individuals among them, as well. 

He is a direct lender, not middleman broker fees. 

Yes the Class feature Cost a bit extra which is a bummer bet the support for it is amazing, and it is easy to allow access for Tax Accountants to pull the reports they need rather than my clients playing middleman. 

A lender is the middle man who will sell your loan to the big banks and in most cases charge you points and higher fee's to support the branch and loan officers commissions.

You will have to follow up with them on shipping as well if there are any delays or issues since they are the middleman placing the order for you.   

I'd look at the closing docs for something related to the pro-ration of expenses etc and see if you have anything there that could be a clause you point to for them to cover those payments. 

The more rational you are, the better the outcome.Practice and LearnLike any skill, negotiation improves with practice.

Or are you thinking you’ll be the middle man taking a piece of every deal and making it worse?

The non-recourse lender was actually the original seller who was financing - GEG was the middleman making a HUGE markup.