"What every investor needs to know about cash flow"  is an excellent book .

With Real if I brought in a direct agent, I'd get some revenue share only for their first year of production, then it disappears. 

However, I don’t believe most Custodians or administrators would do this as your checkbook IRA LLC would stand on its own —thus that registration would generally be done by one of the managers of the LLC or an attorney or other professional if it was needed as explained by @Brian Eastman  I don't know who the service providers are...that's part of the question (attorney, registered agent, other)...could be cumbersome with numerous states.Sounds like it is NA though based on Brian's excellent reply. 

I'm wanting one to filter through county land records, identify owners, perform background check to identify any types of contact, then organize that into a excel spreadsheet and return it to me.

From experience I noticed that a lot of people may not be interested in an item/product/service at a time but are willing to entertain a conversation as long as you are upfront.

Good due diligence required but there are opportunities.Most of our clients will sell their property and then select from a range of existing product. 

One must truly understand this product.

Ideally there's a balance between the notion of Right First Time and Minimum Viable Product that should be struck whereby one acquires enough knowledge to act and then uses action to adapt and evolve.

Take the time to learn the process before getting pulled in and definitely don't get blinded by high flying figures- Excel is easily manipulated.

I have been attending the INREIA which is more information driven than pitching products and services.