"Deeds" are pretty meaninless these days, it's the land registry entry that matters. Assuming there is a mortgage, the lender would have to agree to a transfer of equity so it's not straightforward even if he agrees to the transfer. The problem is the lender will not agree unless they satisfy themselves that you can take respnsibility for the loan yourself. So forcing him to agree to the transfer is only relevant if the lender will agree to the transfer. As above there are no "Loop holes" but at least if the lender won't agree you don't have to give him anything.