The reason I'm recommending them is because it's hard to beat their value proposition.

But right, as you said, making a huge real estate investment based on revenue from a rental model that is not allowed is a risky proposition. 

He was offering it as I would have access to it with no money in it for him.It is an interesting proposition as he has a much higher limit than I would have with my own HELOC I am currently in the process of opening.

Like I always ask when people are looking to JV...what is your value proposition to the project?

https://zoomeral.com/I would like to know more about them because they have interesting propositions but i wanted to know if you already worked with them and your experience please. 

Losing just 1 week in vacancy OR $100/mo is going to be a losing proposition for the landlord.

Have a value proposition and you will kill it in a market like this. 

That's part of my value proposition but as you grow it's not a long term solution. 

If they seem interested and want to discuss the proposition in further detail, then you might be able to maximize your land value by joint venturing with them.

Let alone the push back, look at proposition 207 called the Private Property Rights Protection Act that was passed in 2006 in Arizona.