The triplex is much more popular with traveling work crews for specialists in the trades and insurance relocations, so if we were to do it again, I would probably worry less about making each room it's own rentable space and save a little bit of those costs. 

Built to rent communities are also becoming more popular.

So it wont be a popular opinion but maybe don't invest in real estate just yet.

Finding the value in today's market is the challenge that is differentiating these companies. 

The more challenging stipulation is you would need to use it more than 50% of the time for business use (and you need to log the miles to document that).  

Sounds more like trying to win a popularity contest, aiming to gain votes and likes from people here that also have something against wholesaling.But OK let me play along.Let's fact-check this:OP: "It’ll truly be strange to even hear people and gurus trying to make big money off it."

Rents will rise much at a much faster rate, so the challenge of finding cash flow (enabling more investors to become "capable") will gradually recede as SFR cap rates gradually expand - it will be a process, not an event - over the next few years.

Quote from @Jeffrey Hill: There are a couple of challenges with financing the difference. 1) The current servicer has to approve it. 2) Finding a lender to do a 2nd mortgage at 100% CLTV is almost impossible.

I applaud you for putting it out there but 1) maintenance/cap ex is far too low for a duplex 2) no PM. 3) vacancy at 1% will be challenging if achieving near market rent.

Challenges?