John Kuti (he is in St. Petersburg, so this must be his Linked In profile) has started a Legal English wiki. This will be mainly for teachers of legal English, although among the Wanted pages is one on translation. Obviously this depends on people contributing.
At lawtalk.org.uk, John has put up a short slide presentation of how the wiki works.
The wiki is called LawTalk. There isn’t much in it yet, obviously, but it sounds promising.