Debt Terms - We anticipate re-evaluating a refinance in 12-24 months, as the capital markets improve.

If that's the case, you should be able to rate/term refinance at ~75% LTV with a DSCR loan, and with some interest-only basis, your payment will go to ~$850 (based on ROUGH pricing TODAY).

I would like to add 2 - 6 container living houses for short, mid or long term rental.

If these houses have stable long-term tenants, I share your concern.

I’d love to hear more about what you’re targeting in terms of property type and location.

You lose all of the control and these are long term investments - but in my experience the returns match what I had on the active real estate and I am hiring professionals to manage the assets.  

Of the many strategies I've looked into, House-hacking and short-term rentals piqued my interests. 

I would be happy to forward you the contacts of these folks so you can reach out, as well as a referral for a short term rental consultant who may have some insight.

Google the term UBIT.Tom Wheelwright has a chapter on why you don't want to do this in his book Tax Free Wealth.

I would like to build several (2 - 6) "shipping container" type homes for either short, mid or long term rental.