Or is there a way to utilize my existing LLC, but to have a specific carve-out unique to this (and future) partnered-properties?

What makes the property unique is that there is a separate 6-car garage in which all of the garages are currently rented out (not to the tenants) for an additional monthly income of $725.  

I have worked both sides and have a truly unique approach to be successful.

I hear some people are successful posting in local real estate facebook groups, using facebook ads, calling mortgage brokers to see if they have any clients they couldn't qualify, even flyers or direct mail sent to nearby apartments.Typically you will get a LOT of calls/emails, most of them won't qualify, but some will, in fact probably more than you have houses!

I tell our clients plan to buy a minimum of 10 or don't start.

Your dad’s story is not unique unfortunately. 

The part I enjoy most is getting to help clients by using my creativity.

or you don't know me.... my inventory is not dead and my clients don't need to do any of that LOL.just e mail me.. :)   1600 notes in the last 5 years..

I am also a realtor, though I haven't had any clients with properties in that area.  

As a buyer's agent I like having the knowledge that my client actually can get approved for the amount of money they have been told they qualify for.For commercial loans my clients use local banks live AVID Bank in Palo Alto or Comerica.For residential loans I like Bank of America right now.