The process to purchase real estate (as well as other assets) with your Solo 401(k) is fairly simple. There is no special real estate contract needed for retirement account purchases, for example. The main difference between purchasing an asset with the retirement plan and purchasing an asset in your name personally is that the buyer on the contract (or any other paperwork) will be the Solo 401(k) trust instead of you. Any earnest money deposits and expenses will be paid by the Solo 401(k) trust. All assets purchased by the retirement account will be titled in the name of the Solo 401(k) trust.