Leverage my expertise to connect with top-tier, peer-reviewed real estate professionals and discover the best funding options available on BiggerPockets.What You Can Expect from BiggerPockets' Concierge Service:Personalized Assistance: I'll ask 6 to 10 questions to fully understand your strategy and timeline.No Hidden Fees: Enjoy this complimentary value-packed service as a thank you for being a Pro member.Powerful Tools: Using BiggerPockets’ advanced Finder Tools, I’ll conduct an in-depth search and, with your approval, connect you with investor-friendly agents, lenders, tax professionals, and property managers.

Agreed, sounds like DSCR loan would be a good fit here as mentioned above. 

Your Lender My suggestion to find #2 & #4 would be to go to the top of this page and click on FIND AN AGENT & FIND A LENDER.

I am incorporating several tree houses in a development I am working on and because they are such a unique experience I have found every tree house experience is rented out 12 months in advance and attracting top dollar.  

I'm definitely going to look into it.I'm past the point of house hacking though 😅 My family wouldn't fit in a duplex.

Leverage my expertise to connect with top-tier, peer-reviewed real estate professionals and discover the best funding options available on BiggerPockets.What You Can Expect from BiggerPockets' Concierge Service:Personalized Assistance: I'll ask 6 to 10 questions to fully understand your strategy and timeline.No Hidden Fees: Enjoy this complimentary value-packed service as a thank you for using BiggerPockets.Powerful Tools: Using BiggerPockets’ advanced Finder Tools, I’ll conduct an in-depth search and, with your approval, connect you with investor-friendly agents, lenders, tax professionals, and property managers.

So my answer isn't entirely just off the top of my head, but this is my current understanding of it. 

The top program was $30,000 for two years. 

Our medium term rental on the west side we have just lucked out with and have a tenant paying top dollar and he keeps extending. 

These might be middle-of-the-funnel leads or top-of-the-funnel, but they have had success from a couple of people.