A new three-part series on the difficulties of buying a home. Getting on and staying on the property ladder has never been so difficult. Whether you are buying, selling or trying to keep up with the mortgage payments no-one seems certain where the market is headed. Andrew Verity travels the country discovering just how far homebuyers stretch themselves to get on the ladder and questions if they are wise to do so now. And he meets those already there battling to keep their homes.