When using an SDIRA to purchase real estate, investors should ensure there are sufficient funds within the retirement account to pay for any needed capital repairs or operating expenses during periods of negative cash flow.Home equity loan and HELOCsHome equity loans and home equity lines of credit (HELOCs) are 2 ways of borrowing against the equity in an existing property without having to sell.

They understand market prices and can ensure you're not getting taken for a ride.

Knock on wood, we've had really no bad experiences with regards to parties because we follow our steps to ensure it won't happen.  

Why not a 30yr to ensure cashflow? 

There are some additional benefits outside the reduced liability component, particularly for holders - like owner privacy/reputational risk and tax efficiency using the strategy that Joshuam alluded to.

Quote from @Wassim Moukarzel: You can usually borrow around 75% of the equity, not the entire amount.Yes, you would be taking on additional debt so you need to crunch the numbers and ensure the rental will still cash flow after borrowing against the equity.

Surprisingly a lot of companies don’t like ensuring log cabins.

I’m always looking to be more efficient, so this is awesome feedback!

This helps ensure you are getting enough value from your improvements to not only cover your HML but also recoup your initial investment costs and put some more funds back in your pocket than you began with. 

A CPA can help you make informed decisions and ensure that your finances are in order.