However, that could impede your scalability.

Look at scalability of your business model..

It's likely not going to increase dramatically in value, attract quality tenants, be a stable, low-maintenance asset, or provide any of the real, scalable benefits of real estate investing to your life.Personally, I choose to buy assets that produce reasonable, but not incredible cash flow, but have plenty of potential for appreciation.

In fact he is quite derogatory of single family homes...he feels they aren't scalable past ~50 locations.

It's more scalable. 3.)

There were limitations with the volume we are doing that it was not a scalable solution.

They could benefit from it, but I don't think most know where to start looking since there isn't a software program (that I've found) that serves mortgage brokers since it's not really a scalable segment of the market. 

Been there, done that, not very scalable and doesn't build nor sustain wealth.

You need to think about what makes AirBNB appealing to different audiences as well as the scalability factor.I know several folks who have scaled and with 3rd party management, it is still much more profitable than monthly rentals. 

I believe that most people, unless they are talented at being an elite investor, should just be an LP role in a syndication due to the scalability and being able to spread their capital across different leads, business plans, asset classes, and geographical locations.