Gregory Graf has focused his practice in the areas of complex criminal defense, civil litigation, and domestic relations.  Mr. Graf is a member of the American Trial Lawyers Association, Colorado Bar Association, Denver, Arapahoe and Douglas County Bar Associations. He holds the prestigious rating of an “AV” by Martindale Hubble, the highest rating that can be attained by an attorney.  He has also been voted a "Super Lawyer" In Colorarado and a "Best Lawyers" by 5280 Magazine.

Mr. Graf graduated from Indiana State University in 1980 and the University of Tulsa Law School in 1983, where he was an editor of the Law Review. He commenced his legal career as an Assistant District Attorney. He is a former Assistant United States Attorney for the District of Colorado where he served in the Major Crimes Unit, the Rocky Mountain Organized Crime and Drug Task Force, and Appellate Divisions. He has numerous published opinions relating to his prosecutions of complex white-collar crime and computer fraud cases. He also serves as a mediator and special master in the state court system.

Mr. Graf was an Adjunct Professor with the Lester B. Pearson Peacekeeping Centre, Nova Scotia, Canada where he taught international human rights law. He also teaches the law of armed conflict to members of the United Nations peacekeeping missions. He is a Colonel in the Colorado Air National Guard and is a combat mission ready F-16 pilot. He served as the Chief of Staff for Task Force West during Operation Iraqi Freedom. He has also served as a staff judge advocate and military judge in the Colorado Air National Guard. As part of his duties, he was legal advisor to the Office of the High Representative in Bosnia and Herzegovina. In that capacity, he was assigned to the investigation and prosecution of organized crime members and war criminals.