I've heard people in this forum suggest that you treat them all like animals.

I suggest checking out some of the meetups on BPs meetup page:https://www.biggerpockets.com/forums/521-real-estate-events-...I also have a list of all the other Chicago meetups that I can share with you.

It may be out of state, so you will have to determine if that is something you are willing to explore.It isn't always cut and dry as some suggest. 

I'm in escrow on a small multifamily (4-unit) in San Diego and wondering if anyone has suggestions for great property managers in the area.

Strongly suggest scoping out GA, TN, OK, PA, AL, IN, etc.  

I would also suggest YouTube if you like to watch vs read.

I would suggest keep learning and dig deep on the one real estate strategy you selected to pursue. 

Can anyone suggest beach markets in SC and/or GA that allow STRs and cash flow with 20% down?

Here are a few suggestions on how you can maximize the wealth of information available: Check out the blogs and podcasts, or take advantage of the search feature (magnifying glass).

Your Lender My suggestion to find #2 & #4 would be to go to the top of this page and click on AGENTS & LENDERS.