In my opinion, the lender would be lucky to get interest added on to the 'debt' after six years, and if you look at material elsewhere on this site (under Repossession) you will see that there is some confusion as to how long a lender has to chase you for 'shortfall'. Lenders say 12 years, but is it really 6? This has not been tested in the Court of Appeal.(posted 8479 days ago)However, like most people, your best 'defence' against the claim is probably asking the lender to prove it sold the property at the best price, although in your case it may have stuffed up its paperwork & statutory notifications as well. In other words, you can ask this lender to prove the extent of your liability to you before you even consider making any kind of settlement offer.