When self-directing your retirement account, you must be aware of the prohibited transaction rules found in IRC 4975.
When self-directing your retirement account, you must be aware of the prohibited transaction rules found in IRC 4975. These rules don’t restrict what your account can invest in, but rather, whom your IRA may transact with. In short, the prohibited transaction rules restrict your retirement account from engaging in a transaction with someone who is a disqualified person to your account. A disqualified person to a retirement account includes: The account owner, their spouse, children, parents, and certain business partners. So, for example, your retirement account could not buy a rental property that is owned by your father since a purchase of the property would be a transaction with someone who is disqualified to the retirement account (e.g. father). On the other hand, your retirement account could buy a rental property from your cousin, friend, sister, or a random third-party, as these parties are not disqualified persons under the rules.
Additional Resources:
Directed IRA Podcast #3 - Self-Directing your IRA - What are the Rules?
Directed IRA Webinar - Understanding the Prohibited Transaction Rules for Self-Directed IRAs