I think the angles of finding deals will be a combination of connections and software.

There are a lot of ways to potentially go with this, but just most basically I would consider separating, for now, your investing and your living... pursue each one separately like it is it's own thing, and then see if there is room later for them to be combined.

But depending on your initial $$ you have to start out with, if you are quickly buying properties then you will most likely ALWAYS be managing a combination of 3-4 major activities at the same time.

I feel that I am decently organized but use a combination of saving documents on my computer or Google drive.

Both of these combined should take you no more than 20 minutes or so and you will start learning so much so fast!

SDIRA experts chime in: So I'm looking to make a loan on a performing rental property owned in an LLC. It already has a first mortgage (at around 20% LTV), so a lot of equity. 75% of the $$ would com...

It's likely you  can get into the 9% range, possibly the 8's with the right combination of the above factors. 

Ubiquiti is modern.For door entry systems I have combinations of AIPhone and Mircom.

You will probably need to use a combination of private money lenders or hard money lenders to do this.  

I personally have over 18 years combined building experience working for banks, flippers, homeowners, property managers and contractors.