Use one blanket insurance policy for each business ownership arrangement (eg - one for personal, one for anything owned by you that is for profit, one for anything owned by you and person X, another for person Y, etc).

The bigger guys do some hedging and have arrangements with the gas suppliers that can mitigate some risk.

If each unit does not have their own specific space I would put the patio, chairs and a table or two smaller tables Maybe an arrangement of colorful adirondike chairs (very durable). 

What are some of the normal payoff arrangements for private money lenders?

If you can't grant that as a landlord I, as a perspective resident, would probably look for a different living arrangement.

They guarantee a 20% annual return and have triple net arrangements.

Potential Legal Risks: If the IRS or a court determines that the arrangement of renting to yourself is not a legitimate business arrangement but instead a method to evade taxes or deceive creditors, you could face legal consequences.

At the moment i am in my home country and we are 3 hours ahead from Spain, we can agree in time that will be convenient for both of us to arrange a call.

So I have developed a relationship with a potential partner where they finance the deal and I house hack a duplex arrangement.

Are there any verbal agreements or arrangements between the current Landlord and Tenant?