:D Seriously though, I'm interested in learning exactly what they are, how they are traded, and how I could possible profit from brokering/connecting companies that trade MTN's with a few of my clients that have that type of buying power.

In fact you are trading likely a fixed rate for an adjustable rate. 

What about other 'property trades' people?

THEY should be the expert on what should happen, if they know their trade of course. 

I know it's a different time now, but trading long term borrowing on a long term asset for a short term LOC that can be called... that's not something I would ever recommend.

But, I'm a mechanical engineer by trade and am not afraid of digging into the details to figure out if it's viable. ;)

If you're planning on building an ADU or JADU 'yourself', my suggestion is to make sure you have some previous knowledge of construction and also make sure you know good sub-contractors in the following trades:  electrical, plumbing, foundation, roofing, framing, drywall/paint, stucco, tile, cabinetry, flooring, HVAC, concrete, etc.The last thing you want is poor quality work that has to be re-done because a handyman or the wrong tradesman did the work.

Sellers are still wanting "too much" as they typically think their deals should still be trading in the 4-5% cap rate range.While I won't pretend to have a crystal ball, I generally think: a) if you want to get a deal today, you are going to need to be more aggressive then you probably are comfortable with in your assumptions.  

They have some events, virtual meetings, and in-person trade shows where it might be beneficial. 

I mean you can't realize that gain until you sell your shares and if it's not a publicly traded REIT, I imagine there is not much of a market for reselling them.