Self Directed IRA Prohibited Transaction?

[Scott Pirrie]

I am looking at another deal with a partner I have 50/50 LLC holding properties in. We are looking at using my dad's self-directed IRA for a down payment lending it to another friend who would go 50/50 on the deal with my partner in the other LLC on this deal. Does anyone know if this would be considered a prohibited transaction because of my 50% ownership on the LLC with the partner?

Any advice would be appreciated!