Each institution has their own process to follow when liquidating (cashing out). I had mine at T.Rowe Price and just called them and requested an early Cash out. My accountant, my friends, my family, most conditioned people thought I was crazy.
Bottom line is that numbers in real estate don't lie. And if you know how to analyze deals, you will make your money grow.
@Khaled Helmi -> I have my own opinion on using a self directed IRA. It's not a terrible idea. I just took the penalty on my initial withdrawal and started growing it. Sure, the intention of using the self directed IRA and other tools like 1031 exchanges is to protect against taxation, so each person can decided if those tools are a good fit for them. I just like to have full control of my money when I need it. don't want to get permission from my custodian or go through a process. Ultimately, my goal is cash flow and gains. Whether I get taxed now, or defer it until later, makes no difference to me personally.
BTW, my IRA was close to $50K. After penalties, fed, state taxes, I was left with just over $40K to start my very first flip. I've turned that $40K to $98K from my flips (all of them were 50/50 partnerships). My commercial deal, if goes as planned will add $250,000 to that. All started from me taking a risk and using money that was just sitting there growing slow.