Quinn Emanuel Urquhart & Sullivan plans to appeal a judge’s order disqualifying it from representing 137 victims of a massive wildfire in Southern California last fall.

On June 14, Los Angeles Superior Court Judge William Highberger found that Quinn Emanuel’s lawyers, in three separate communications with attorneys for electric utilities company Southern California Edison more than a year ago, had obtained confidential information with a “substantial relationship” to the wildfire cases now pending. Edison “faces substantial prejudice” without disqualifying Quinn, Highberger wrote.