I work at Folklore Productions; we're the North American booking agency for Lunasa, Dervish and Rosalie Sorrels, among many others (see our web site at www.folkloreproductions.com for the others). Anyhow, yes, these three artists have repeatedly expressed their anger, dissatisfaction and frustration at the unresolved issues with Green Linnet. Legal action appears to be the only recourse.
It would be good if someone from GL would address these concerns in some forum or other, so that their position can be heard too.