How to Roll a 401K into a Solo 401K?

[Mark Pijanowski]

We are looking to transfer my wife's 401K to a Solo 401K and use the money to invest in real estate. She is no longer employed by her former company. After researching, we understand the differences between the two, but we're looking for a step-by-step process. Do we need to open an LLC? Do we have to go though a financial organization, like sense financial? Thanks in advance!