I would have snapped that domain up if I wasn't on an economy drive.
However, as I'm not going to buy it...
I would say that you should hold on to it, there's some upcoming deregulation of the industry that means there will be many more people able to run solicitor firms; not just solicitors. This means that there will be many new companies that need to establish national brands, I bet at least one of those will want to do that through a generic and TV ads...
It'll take a bit of research for you to find the right buyer but it could net you a lot more .
I'm sure you'll have found solicitors are not the best to sell generic domains to, but the new type of owner will approach things in a different way (recruit many newly-qualified solicitors to do "commodity" services under a brand that's entirely new or one that is not known nationally - by buying a local business and expanding it so they can say it's been established ages)
I'd suggest trying to find the exact details of the changes (can't recall exactly what or when).
Good luck