Self Directed Roth IRA owning real estate question

[Ray Slack]

So, I seem to have made a mistake not funding a roth IRA for the last 20 years.

I have a heathy self directed 401k that I max out every year and currently own 2 rental properties under it. I'm collecting rent that all goes into my 401k..  This is deferring my taxes which I will have to pay when I'm retired and pull the money out.

I guess I should have also been building a Roth IRA over the years also. So, I think I would like to start now. Just had a few questions.

1. Am I correct that with a Self managed roth IRA I can own real estate and the rental income and capitals gain when sold just go back into the Roth IRA and if pulled out after retirement age are tax free? ( do realize I would be contributing after tax dollars to the Roth IRA)

My plan is this contribute the max to my solo 401k as usual and then the max of $7500 to a roth IRA (i'm over 50) before 2024 and then contribute another $7500 in Jan 2024 to then have $15,000 in my account. I am currently investing in tax sale properties where I can buy a tax sale property for about $15k and "Flip" it for $25k to $30k.. Then I would have 30k in my account. I could then buy 2 tax sale properties with that $30k and rent them out for until I'm of retirement age and put the rental income back into the Roth IRA for the next 5-6 years .. Bringing the value of assets in my rother up to about $100k.. Then when I'm 60+ the entire value of my Roth IRA plus any capital Gains and rental income can be taken out tax free??

This seems to good to be true..  Am I missing anything here?