I think you shouldn't compared people who are visiting the forum to the Airbnb average.

I am 14 hours into the 20-hour online course offered by "RealEstateU."

The one stop shopping is definitely the appeal, but remains hard to find.  

Just wanted to introduce myself and enjoying the Bigger Pockets site and forums.

The later is critical to protect your investment.

LLC in the state of operating?

No need to invest out of state, when you are in one of the best places in the world to invest in real estate. 

Understand the fees involved and calculate the total cost for an entire year of management so you can compare the different managers.

Either way it would be a grey area, selling a house with a different amount of units/bedroom/bathroom seems extreme though. its an auction site, I have seen auction sites miss the fact there was additional lots in a sale.

I appreciate that, and you're right, any back-of-the-envelope calculation suggests that much of the wealth comes from the equity accumulation, even in the earlier stages of the amortization schedule.