I just bought a self-storage which is filling up really quickly.  

Shameless self promotion used to be discouraged.

I'd highly suggest you open a separate account to hold the security deposit so that you don't get tempted to dip your hands into the honey jar.If you have just one rental and you are self managing I'd go with Paypal.

You likely won't pay self employment tax on rentals as they're passive under a partnership or sole-prop entity.

I am a Criminal Defense Attorney by trade to I try plan out as much as I can because I hate to be cause off guard.

We own and self manage over 100 units and NOT ONE is on the west side. that's not an accident.

The books don't teach you much about real estate investing so it is important to find a brokerage firm that works with what you have envisioned for your self and your real estate goals. 

Right now i self manage my rentals (4 unit and a 3 unit im closing on next week).

I'm self employed and do travel to Wisconsin for business often My interest are multi family and single family homes...

Get The Self Directed IRA Handbook by Mat Sorensen, will be a good start.