Can I roll a property I bought in may of 2024 in total (no loan) and plan to Airbnb (managed for me) in my S-corp into my solo401k as my full contribution for 2023 (and repayment of my loans taken) and part of my 2024 contribution? It won’t use the full amount. We have not personally put work into the property. However, we didn’t buy it first in the solo401K. we would put it in with the actual costs /expenses. I would ask a lawyer to transfer the deed from the s-corp to the solo401K. then proceeds from airbnb rental would go into my solo401k. If done, Would it then be subject to UDFI or UBIT? HELP??!!
Covered this on the Directed IRA Podcast show today, August 21. Please get over to that show to hear our response. Thank you!! Mark and Mat
PLEASE listen to the show. You have several issues in your question you need to address. 
sorry.
It will be live in 3-4 days.