Looking to Leverage Self Directed IRA for Initial portfolio

[George Vigil]

I didn't like the stock market volatility, so I decided to leverage my 401k proceeds to set up a Self Directed IRA to invest in Real Estate rentals.

I have $650k available and looking in the DFW, Jacksonville, Albuquerque and Colorado Springs markets for SFH or Multi Units.

My question is:

Should I purchase properties via cash or leverage financing and incur the UBIT taxes.

Are there any worksheets that help analyze real estate properties and factor in UBIT- Unrelated Business Income Tax?

Thank you for your insight.

George