What's the politest way? We've been living in a rented house for a couple of years. We want to buy it and landlord will only sell to us. I'm asking 10 grand less than what he's asking/what it's been valued at. But honestly with the cost of living...it's hard. The house also needs work, has damp and we would have to apply for an extension. What would you say? It might be easier face to face but I keep doubting myself as it's via email. Any tips and advice?