Process of selling primary residence, but instead of investing in another property, we are looking at purchase a small business instead.

Primary one would be a deep recession leading to an inability to fill the building with tenants willing and able to pay the projected rent.

We got a traditional loan from a local bank How did you add value to the deal?

I have no children and no debt except my primary mortgage which is very low.  

It looks like data presented to make decision makers look better as they hold on to the old idea of the traditional office. 

Are these both rentals or is one of these your primary?

My wife and I have our old primary home that we recently moved out of and are renting that has 150K+ in equity that we could tap into via HELOC to fund the down payment for our next purchase and cover the remainder with a DCSR or Conventional loan?

(Almost all allow Airbnb in your primary residence even if they ban short-term rentals as an investment property.)Littleton, just south of Denver, has been all over the map.

Besides traditional banks to access the equity via HELOC or refinance, what other programs are there via private lenders that will allow me to access that equity?

Michael already gave a great answer, I just wanted to add that owner financed deals are usually better risk wise then taking on a traditional loan yourself.