You would likely have to do a ground-up construction for a design you are proposing.

I’m considering consulting a lawyer to clarify these issues.Two weeks ago, I reached out to the tenant via email to start a conversation and propose a win-win renewal, but I haven’t heard back yet.

Was looking to save where possible in this market but the method I proposed is not worth the consequences. looks like 20% down it is!

I really want to have them sign a contract that I can drop in the scope, schedule and proposed fees to provide some protection for me.

Quote from @Michael Smythe: @Carlos Ptriawan doubt many would hire you based upon exactly what you've proposed!

on your second question - you're proposing 100% financing. 

Either way, run your proposed solution through an attorney. 

Of course your participation in those tulip bulb type speculative frenzies isn’t guaranteed since the asset/product you are proposing DOES have real value.  

For instance, mismatched names, employment details, or salary figures should warrant further scrutiny.Urgency to Move In: Applicants who are unusually pushy about quick move-in dates may be attempting to bypass thorough checks.Reluctance to Provide References: Hesitation or refusal to provide contactable references from previous landlords or employers is a cause for concern.Cash Offers for Faster Move-In: Proposals to pay a significant amount up front, especially in cash, to expedite the moving process can sometimes indicate an attempt to avoid scrutiny.Unverifiable Identity: Difficulty in verifying the applicant’s identity through standard identification documents can indicate potential fraud.Tips to Mitigate Rental Application Fraud:Enhance Verification Processes: Implement stringent verification processes for employment, previous rental history, and identity.

Project File is at link below. w overview of plot, creek and proposed house designs for the build.