"Now that Contracts have been exchanged on my purchase, I wish to thank you for all your hard work in selling the property. I think that it is fair to say that this property has proved to be a difficult house to sell, but I am confident that no one else could, or would, have put more effort into it than you have. I really do appreciate the many viewings which were necessary to secure a buyer and more recently the dozens of phone calls to "chase up" the purchasers and their solicitors. I do hope that we can do business again in the future and hopefully next time it will be easier for you. Thank you once again."