Getting it right: Pensions, property, and proper processes

Let's imagine you've decided your client is in the right situation and circumstances to proceed with a commercial property purchase within their self-invested personal pension (SIPP). The due diligence is complete, the financial plan is in place and the paperwork is signed off. You're both ready to go. The client is buying their own commercial property through their own SIPP, which seems simple enough. At first glance, it seems like you can sign the property over, notify the relevant authorities and clink glasses to a successful piece of tax and financial planning. You and your client...