Early 401K Cash out

[Azita S.]

Is cashing out a 401K to invest in RE a terrible idea?

According to an online early cash out calculator, I'd be paying a hefty fine and taxes on the balance, receiving less than half the current balance.  I've been contributing to my 401K for 10 years now!!! 

But if the deal goes as expected, the loss in fines and taxes will be make up in no time.  

Any advice or feedback is greatly appreciated