JAMS Inc. added retired Cook County circuit judge Diane J. Larsen to its panel.She will serve as an arbitrator and mediator in a wide variety of disputes, including business and commercial, personal injury and torts, civil rights, class action and mass torts, employment, estate/probate/trusts, insurance and real property.Larsen spent 14 years in the Law Division and six years in the Chancery Division. Prior to taking the …