A self employed owner only 1 person plan has mortgages as investments within the plan. The owner died and his wife continues to take RMD after his death. The plan has not been terminated as the wife beneficiary wants to keep it open until all of the mortgage investments have been repaid. The business still has activity at this time. The wife beneficiary would like to purchase one of the mortgages from the plan personally. Since this is a 1 person owner only plan, is it subject to the prohibited transaction rules? (The mortgage is $150,000 and the RMD is roughly $40,000 each year.)