VAT questions re de-registration of a property business

I don't want to state the specific questions here as they include confidential information about my business. I have a few questions related to de-registration from VAT in the context of a sole trader business owning commercial property with/without property still retained at the point of de-registration. Should be 30-45 minutes work for someone who really has the specialist knowledge relevant.
Might be a couple of brief follow-up questions.