A Commercial Division judge has rejected a motion to disqualify a law firm from representing parties in a joint defense because “virtually all conflict waivers would be unenforceable” if the court did so.

Greenberg Traurig's shareholder William C. Silverman moved to disqualify Schlam Stone & Dolan's partner Jeffrey M. Eilender on behalf of Dennis Danzik, Ridgeline Energy Services and other parties.

The Ridgeline parties argued that Eilender and his firm should be disqualified, even though a waiver of conflict was signed. Eilender represented Ridgeline and other parties who were once codefendants in a lawsuit challenging the sale of a company that owns a biodiesel refinery in Carthage, Mo. But now they on the opposite sides in litigation.