I’ve done some of my own calculations but since this is unique and the money wouldn’t pay down the mortgage I’m requesting some additional analysis.

Under those circumstances, it's very difficult to model anything as the outcomes would almost entirely depend on guests/tenants and their behaviour.

Space is pretty unique, and not cheap. 

I find being able to structure with the best outcome for the investor is when there's a realtor who can also negotiate and sell the structure we want.

I'm not aware of a cap though if there is one.Breakdown:- 7 invoices total and they're all unique for each part of reno (separate invoice for flooring, shower tile, demo, etc).- I'm using the total amount for each invoice and the highest one is $2,500.

What's the targeted outcome?

Everything is negotiable so "fair" depends on the circumstances and the individuals.Factors that might affect any outcome include: - Is this non-recourse debt of full-recourse. 

"Track the input and let the effort determine the outcomes"This mindset took the pressures of outcome, off the table.

In reality, that belief is where many problems quietly begin.I’ve seen investors buy nearly identical properties in the same city and end up with completely different outcomes.

There’s also an old mine on the property, which we initially thought was incredibly cool (still do… we just don’t exactly know what to do with it).Our original vision was pretty ambitious (and maybe a little romantic):We imagined building out a glamping-style experience with unique overnight stays, stargazing, and even some kind of “night golf” concept integrated into the terrain.