Steve - This forum is primarily meant for providing guidance on HM Land Registry procedures and requirements. We cannot comment on what would be a legal opinion.
If you are seeking a legal opinion or a comment on it then I would suggest you try some other forums, for example
Money Saving Expert or
Garden Law. We do not endorse these forums or what may be said in there, but you may be able to seek views of someone who is qualified to comment on them or who may have been through similar situation.