After law school, Mr. Callahan was an associate attorney at the Mitchell Gallagher law firm (formerly Greevy, Knittle & Mitchell) located in Williamsport where he concentrated solely in the area of insurance defense. Mr. Callahan formed a partnership with the late Anthony Miele Esquire and opened the Miele Callahan law firm.
At Miele Callahan, he focused on all areas of civil litigation, including workers’ compensation, personal injury, and family law. More recently, Mr. Callahan and John Zurich formed the law firm of Callahan & Zurich, L.L.C. Here, he continued to concentrate on all areas of civil litigation.