You can check out here the nearby members and network at https://www.biggerpockets.com/meet, it will help you a lot to find partners that can help you out in investing.

Look at sales of nearby similar properties. 

I know the prices are crazy but it’s also nice to have your properties nearby.  

Right now, I would characterize myself in the accumulation phase, as I am essentially stock piling cash to be able to put down the down payment and have plenty left over to account for any unforeseen expenses (repairs, vacancy, etc.).My question is, where should I be keeping this cash?

As a Southern California investor, keep in mind that properties are expensive in most areas that are desirable - you aren't likely to find the opportunities for properties that meet those "1% rule" or "2% rule" that you'll hear investors in some other states talking about.My personal preference would be to find a nearby property to start learning the ropes with before you go for something more distant, and that would help you draw a circle around your home to allow you to start digging into neighborhoods and getting a feel for prices. 

One of our tenants is a guard at a nearby casino and has always paid his rent with 100 dollar bills.

He make sure his victims don't have close friends or relatives nearby.

You can nearby REI clubs to join by going to events near you https://www.biggerpockets.com/forums/521-events-and-happenings

You could probably look this up on the county website.What are similar properties nearby renting for, if any?

Here is the property:  https://www.realtor.com/realestateandhomes-detail/545-6th-St_West-Des-Moines_IA_50265_M86748-68205 it's in a nice neighborhood with a school nearby.