This is very topical for me. After my husband died I tried to update my Will with the solicitors we had used several years ago, and who had the previous Will and the house deeds. I then discovered that they had been taken over by a large National company and had moved from my home town. I then did a new Will and LPAs with a local firm, and decided I would like the house deeds to be with the new company in order to keep everything together. So I had to chase up the larger company - emails, telephone calls. Eventually I was asked to five items of identification: Passport, selfie of me with passport held up, utility bill, husband's death certificate, updated Official Copy Register of Title (This item floored me a bit). Finally sent all this off. SUCCESS! The deeds arrived a few days ago, and are very interesting as they contain several covenants I had forgotten about. If everything is now with the Land Registry, how do you know about the covenants unless you have the deeds?