A lawyer for victims of the 1983 bombing of the U.S. Marines barracks in Beirut who won more than $2 billion in judgments against Iran has sued three lawyers who represent other victims, claiming they were paid $29 million in legal fees that they didn’t deserve.

Steven Perles, who has litigated several cases against state sponsors of terrorism, sued attorneys Joseph Peter Drennan, Dan Gaskill and Patrick Donahue in Manhattan Supreme Court on Monday. Perles, who runs his own firm in Washington, D.C., claims the three have been paid $33.6 million despite having barely lifted a finger to help him execute on a strategy that has so far resulted in $1.9 billion recovered for the victims. Perles contends that the three lawyers, who are solo or small-firm practitioners around Washington, D.C., are only entitled to a little over $4.5 million, but they want more.