I have seller financing and entity swap as 2 discussion points going on.

This is a very thorough overview of land swaps!

Looking for some input on how others would approach this situation. Currently own two properties under different LLC. LLC "A" has a commercial property, no loan/debt, with a 15 year NNN left on it valued at 5-6 Millio...

It is what was called the "swap and drop". 

And I will state different jurisdictions have different rules, processes, expectations, etc.In my area you are required to have a permit to swap a water heater.

A classic drop n swap, what has been referred to in the previous mentions.

The competition is fierce, so simply rearranging photos, swapping some in and out tells the algorithm that you're an "active" host and you'll be more visible on the platforms. 

Quote from @Vince Scipione: Yes, they are a popular choice where I live and work, however with the ever fluctuating cost of oil heat, many people have swapped over their boilers/furnaces to what is called a "Propane Gun" essentially it is a device that is affixed to the front of the furnace/boiler that injects the propane and ignites it.

Let’s swap ideas!

I swapped from CapitalOne to Baselane about 6 months ago and it's been highly beneficial to my little real estate biz.