O'Neil, Cannon, Hollman, DeJong & Laing S.C.
Greg represents clients in the prosecution and defense of complex commercial litigation, insurance coverage, and products liability. His extensive experience in commercial litigation has prepared him to successfully represent large corporations as well as small businesses and individuals. Greg has also served as class counsel in numerous class actions.
Greg has appeared in state and federal courts in numerous jurisdictions including New York, Texas, Arizona, Oregon, Florida, Illinois, and Washington D.C. Greg is a member of the Wisconsin state and federal courts, Seventh Circuit Court of Appeals, and the United States Supreme Court. Greg also serves as the Chairperson of the firm’s EthicsCommittee.