Be “hearty in your approbation and lavish in your praise.”Principle 7- Give the other person a fine reputation to live up to.Principle 8- Use encouragement.

The prohibited transaction would take place if you use LLC funds for your own personal benefits as IRA or engage in a transaction between IRA LLC and disqualified person, as the IRS rules explain:https://www.irs.gov/retirement-plans/plan-particip...For this reason it is very important that as the account owner you understand and follow IRS rules, regardless if you using IRA LLC or custodial self-directed IRA.

I think it depends on each person as what works best.

Per your question I have one person, a private individual, who works as my cleaner/greeter/on the ground manager/emergency contact for the rental and they take a percentage of each as pay.

I've seen "partnerships" between SDIRA and individuals before, some where the IRA owner (beneficiary) partners with the IRA... like this deed:  Equity Trust Company Custodian FBO "PERSON" IRA as 79% undivided interest; and "PERSON" as 21% undivided interestObviously "PERSON" is the ETC client's name, which I chose to redact.

A sales trainer, or real estate person, a trainer of some sort.  

That said, it's very possible you may need to honor the remainder of their leases.As a final note, you called this person a "client," which means you owe them a fiduciary duty whereby you put their needs above your own.

Person B will either have to transfer their interest to person A (perhaps through Quitclaim) so you can deal exclusively with person A, or you'll have to make the deal with both B and A. 

If you can access such a person, a mentor who is willing to mentor you in return for a part of the deal may be the best option, although, again, you are now married to this person, so you want to make sure that the fit is good.  

The judge cautioned him not trying to be everything as each role is supposed to be filled by a different person.  A