'I am looking for help in finding a case study for an article I am writing. What I need, please, are two people/families who have swapped homes within the UK on a long term basis, i.e. for a year or more. If you have done this, I'd really like to talk to you (I'm hoping part of your reason may be that, though you wanted to move for whatever reason - job, family, change of scene - it was too hard to sell and buy homes and much easier to swap homes instead).
Please let us know if you have taken part in a long term home exchange within the UK (for whatever reason) and we'll pass your message to the journalist who will contact you directly.