A New Jersey-based commercial litigation firm opened a Chicago office this week with 10 lawyers from two law firms. The local office of Carroll, McNulty & Kull LLC will focus on commercial insurance and reinsurance issues primarily in litigation and arbitration, said John D. LaBarbera, a new member of the firm. LaBarbera and five other lawyers left Cozen, O’Connor to join the new office. The lawyers also represent insurance companies in insurance coverage and bad-faith disputes, along with handling …