It's a short term debt instrument and needs to be treated that way.

The predictive model is actually very easy to create.1.

Any long term predictions (10+ years)? 

Apparently, Lester Bird had been instrumental in getting John Beck residence status in Antigua.  5 billion people and yet a small world.  6 degrees of separation!  

@Carlos PtriawanThe best part of being an investor is that investors get to make decisions where they place their capital AND then benefit or suffer from the consequences of those decisions.I can say NO ONE has ever become wealthy investing in CDs.I can say MANY folks have become wealthy investing in real estate.I can’t predict what the future will hold but the long term trend (unequivocally) is the price of real estate both sale and rent increases over time.I’ll keep my capital in real estate not CDs.

Be careful with the HELOC - it is a short term debt instrument.

There is no spreadsheet that will predict a perfect investment. 

The Fed recently adjusted its short term projection to one quarter point rate drop for 2024, though it had earlier predicted as many as three drops.

Based on some rough calculations, once fully stabilized and running (including property management), I predict the tiny home community to cash flow around $20,000/month and be worth roughly $3.5 million!

You definitely aren't going to have a great predictable return, especially in the short term, if you try to invest turnkey; at least at the single family and small multi-family level.