I suggest sending the notice, including the details of the lease stating what their responsibilities are.

Therefore , the down payment amount has to be higher so the property cash flows to break even.  

That's how many months its going to take you just to break even and for it to START being a good decision to refi. 

I just wouldn’t spend a lot of extra money providing what for me has been essentially a break even process.

They can have a month to month now at a much higher rate or a lease that renews until whatever month you think makes sense for you with a significant lease break fee.

I have been in talks with a GC in Georgia and his method of building is: He builds everything at costs and doesn't include any markup or fees, he oversees everything, I only supply funding, and we split 50/50 the profits after paying back the bank and all other associated fees.Since I am only supplying the funding for the deal, is there a way I can structure doing this so that this is considered passive income for myself since I won't be involved with the construction or overseeing the project?

Many small engineering contracts include dealing with comments from the applicable jurisdictions. 

Network and Relationships: Investor-friendly agents often have extensive networks within the real estate industry, including connections with banks, attorneys, foreclosure specialists, and other professionals who might have leads on distressed properties or motivated sellers.

This doesn't even include the land loan...which was almost as difficult to find too.Basically, we want to add another tiny house to the lot, and refinance the entire package in a commercial-style valuation.

Just include it as a term of any offer you make to have the seller pay your brokers commission.