Take the volume/scale/compound approach and let it work it’s magic.

But note investing absolutely lends itself to scaling. #9 – capacity to invest from anywhereAlthough out-of-town rental-property investing has gotten more popular recently, the investor still needs to be sure they have a quality team in the area of the property.

As I'm looking to scale this or next year I've been reading, educating myself and trying to run numbers.

Always a shortageRising populations in sectors such as Immigration, Millenials and Baby Boomer generations suggest ever-increasing demand in future.Reliable secure returns when purchased/managed correctly.Easy to understand fundamentals.Value-add options are easy to implement.Economies of scale = 1 roof, expenses can be shared among tenants and savings made.Multiple sources of income = Decreased risk in case of vacancy due to multiple tenants paying.

And how were you able to scale to where you are now with 30 rentals?

Scaling this approach takes a lot of thought and planning. 

I am looking on a national scale which precludes physical search.

Custom, nice finishes, no economics of scale... you could be 600$ plus a square foot.

What are the big pitfalls you would avoid, and growing pains of scaling to slowly, or too fast?

Age old debate diversify vs economy of scale.