Close friends of mine has received a similar letter in the last couple of days. Their's relates to a similar 'handed back keys' Spanish mortgage from 2007/2008. This is the third similar letter from legal firms in the UK they received. One in 2013 , one in 2017 and one in 2018, all by different lawyers who say they represent Sabadell. The last two contained paragraphs suggesting that the law firms could negotiate with Sabadell , by arranging a transfer of ownership and this would satisfy all debt issues. Looking into this my friends discovered that the option would not to be simple at all and the only real thing it would guarantee would be a sizeable fee paid to the lawyers. While it's true that European law does seemingly give an endless time period to bring legal proceedings, it does seem strange that it is taking Sabadell 10 years to go to court if they have a desire to do so. I would speculate that the UK law firms have purchased the info from Sabadell hoping for business and it doesn't mean an imminent EEO. Although there is no independent info available on line concerning this