The site asked for a physical address to do business within Michigan.

Might be worth a call with a few local mortgage brokers.

I'm particularly focused on local STVR (Short term vacation rental) properties that are officially licensed by the county of Hawaii to operate short term rentals.

Contrary to popular borrower belief, the mortgage business is actually more about people than numbers. 

Besides a Hard Money Loan or HELOC, you could try and reach out for a personal/business line of credit?

@Olivier Colson You will first want to find out if the locality has any “Just cause” regulations that prevent you from non renewal, or any other provisions that may keep a section 8 tenant in place.

Or do you get all your business through furnish finder?

If you want to find a STR manager that’s not going to take all your profits, you can use a company like Evolve, which is actually based in Denver and happens to be one of the largest in the business. 

I waited the full 10 business days with no package.

@Kevin Quach, most of my business is acquiring rent-by-the-room investments.