@Clarence BellI would recommend against what you are considering, as it would be likely to create a self-dealing, prohibited transaction.IRS rules prohibit and direct or indirect benefit between a plan and a disqualified party.In your situation as described, it would appear that the IRA and possibly you as well would be unable to purchase the property independently without access to the funds of the other party. 

Director are complete _______.

I am retired from being an Information Technology Director for a major manufacturer.

That manager has to be careful to follow the rules against self dealing - just as would an account holder transacting via a custodian - but they are allowed to administer the LLC and do things like sign contracts, pay for expenses and receive income into the LLC on behalf of the IRA.The LLC is not a requirement, simply a way to gain more direct control over the administration of the IRA's investments.In either case, one may not have any direct or indirect benefit - in either direction - between the IRA and a disqualified party (which I will simplify somewhat as the account holder, their spouse and lineal family).  

Just as a corporation or LLC owning real estate requires those people empowered to sign as President, Secretary, or Managing Director, etc., a trustee (or successor trustee) must be able to provide the buyer or lender sufficient paperwork which "connects the dots" and proves they have such powers.

However, let me share my Quickbooks story and explain why I will NEVER use an Intuit product again.I am the executive director of a non-profit, non-subsidized, affordable housing community.

I am on the CFRI 2016 board as the marketing director and was on IRC's board for three years .  

After graduating, I went to work as the Director of Urban Design and Development for Downtown Houston.My ultimate goal is to become a developer and design/built walkable compact mixed use communities.I currently have 7 SFRs 5 of which are rentals.  

At my "normal" job I am the engineering Director at a large automotive aftermarket company managing approx. 85 employees, budgets, strategic planning, etc., etc. 

You would at least need to hire a full time manager/director if you are not planning on doing this yourself.