I am looking to get a 4-unit residential, though I would not be opposed to lucrative opportunities otherwise.

As for 2010, yet another cliff event with residential crash. 

If the question, then, is how do I turn $300k in debt at 11.5% interest into $10M and $40-45k in monthly cash flow (nets out to $30k after tax), I don't see a realistic path in residential real estate unless you have a really long time horizon or a skill set that I am missing.

What is the best loan for a Real estate investor with 10 or more residential properties thats all occupies with no debt?

As far as my lender I started with small multi family and had met the woman in charge of residential lending at my bank over the years at various local functions.

I may go.https://www.meetup.com/bpg-residential-investor-meet-up/even...

Investing in a syndication or fund could be a good fit given your situation.I started investing in some fix and flips and some smaller residential properties from traditional BRRRs.

High prices, anti-landlord laws and a deteriorating condition in many ways, especially downtown.

There were no “buyer” representation in RESIDENTIAL, buyer broker was only practiced in the commercial arena.  

In my case, I have residential rentals in one LLC, commercial properties in another, self storage in a third, and my real estate company operates in a fourth.