Downsides of lending side is that its taxed as income not capital gains (not an issue in an IRA).

Go to people like Dmitry ,IRA Financial Group, George Blower and his firm , or Justin Wyndham and his firm to get the plan set up.

Currently have a SIMPLE IRA with 100K to invest in flips/rentals.

Hello Hello Successful People of Bigger Pockets,So, I have heard of being able to move monies that are in Retirement Accounts/Roth IRAs in to Self-Directed accounts in order to use those said monies to invest in real-estate without penalty.

I also utilized borrowing from Roth IRA (contributions only, not earnings) and general frugality (we are renting two rooms out of our house in an attempt at "house hacking") to save additional capital to invest.

Looks up using a self-directed IRA, or sometimes called checkbook IRA. 

The advantages of having a Solo401k with a Roth account vs a Roth IRA is that with a Solo401k you can leverage real estate investments with no UBTI tax.

The first category of investable funds includes "lazy debt equity" in your home, followed by retirement plan funds such as 401(k)s, IRAs, and other investments.

Many folks invest in real estate deals through a self-directed IRA.

I talked to mine and we found NO creative ways with corporations to pay less taxes, may be I am small enough :))) But I really would like to know if there are creative ways :))) The most fun way I found at this moment is to use Roth IRA for REI