Would they have to go with a non warrantable product or is there some sort of rule that allows it be a new condo building and waive some of the underwriting requirements?

I'm all for stricter requirements to become an agent.

When you get the wholesale buyer, you should require they put up an equal or higher deposit.

While it's unlikely that all burners will be used simultaneously, I want to ensure proper ventilation in case tenants decide to cook large meals regularly.The standard rule suggests dividing the BTU by 100 to determine the required CFM for the vent hood.

Assuming that a loan required 10% down, how do people come up with the 10% when going from seller financing to traditional financing? 

Are there certain market/demographic requirements you look for with tiny house projects?  

Some states require you to store it for 30 days. 

It's 10% of income the tenant pays, I believe, so they should meet your income requirement by virtue of holding the voucher. 

Here is my understanding... the underwriter was a hard money lender who required the house to be put into an LLC initially so that he could use the estimated "rental" income as the way to get approved for the loan.

That's what I would use in MD, BUT not sure if there are specific requirements in Oklahoma City.