Since the loan is usually for a large amount and tied to an asset, a lender is unlikely to write off the debt. If you are struggling with your repayments it’s important to contact your lender to see what help they may be able to give. It is essential that you don’t just stop paying.
If you are unable to pay your mortgage, then eventually your lender will repossess and sell your property to realise its value. If you have had your property repossessed then you may find that, once the property has been sold, you may still owe money to your lender or mortgage indemnity insurer.