A survey of landlords signed up for the Property Investor Show has revealed 80% are expecting to add to their portfolio over the next 12 months, with 53% of landlords expecting the buy-to-let market to grow over the same period. Some 21% expect the market to remain stable. Remortgage activity should remain strong, with 52% aiming to remortgage over the next 12 months. Interest-only deals remain the most popular at 54%. The top areas for returns are the Midlands, North West, London and the South East.