Metro Bank has launched a new family-assisted mortgageRory Poulter15:35, 10 Jul 2026Parents and grandparents are being urged to take on greater responsibility amid Britain's ongoing housing crisis.‌Metro Bank has introduced a new mortgage product enabling purchasers to borrow up to 100% of a property's value – on condition that a close relative agrees to share liability for the debt. The bank has launched a Joint Borrower Sole Proprietor mortgage targeted chiefly at first-time buyers who are struggling to accumulate a deposit, offering loans exceeding 95% and extending to the full value of a property.‌However, there is a significant caveat. Purchasers must convince an immediate family member – such as a parent or grandparent – to sign on as a joint borrower, rendering them legally liable f