Just make sure you take your policy to the brokers so they can do a direct comparison.Maybe hit up your primary home insurer to see if they offer a STR policy.

You could do something like what you want if it was your personal primary residence and even then the interest rate would be ugly. 

Can still use the $250k primary residence deduction per spouse on capital gains.  

While others above have highlighted the ability to purchase a property with 0% down, there is one large stipulation: you must purchase a property as a primary residence.

Points I can roll into the cost and don't mind a buy down if necessary.My primary concern is the bleed rate monthly for the build, Airbnb stabilization and the year after while we season it and prep for final financing for long term hold.

I always loved having an HELOC on my primary residence as the answer for me. 

I am renting two units (1 basement and 1 side unit) in my primary residence.

You're likely better off attending your local REI meet-up to see if you can find an investor who has house-hacked or is currently house-hacking their primary home.

My spouse was the primary decision-maker, and I’m unsure whether to keep my share, sell, or hire a property manager.For those who’ve faced similar situations, what worked best for you?

I double checked and these layouts do have two exit doors for both primary and the next gen suite as well.