New Jersey law firm Eichen Crutchlow Zaslow is battling in court with its malpractice insurance carrier over coverage for a lawyer’s decadelong cover-up of a botched case.

Eichen Crutchlow sued Allied World Insurance Co. after it refused to cover a potential malpractice suit against former attorney Edward McElroy. The firm sued Allied World in Middlesex County Superior Court on Aug. 28, and the insurance company removed the case to federal court on Oct. 4. The suit seeks a declaratory judgment that Eichen Crutchlow is entitled to a defense and indemnification under the policy for a claim against McElroy by a former client, Dennis Bielski.