Judge Welbaum joined the Court of Appeals in February 2013.  He was a General Division Miami County, Ohio Common Pleas Judge from 1995 to 2010 and served as its Drug Court Judge for eight years.  Judge Welbaum was frequently assigned by the Ohio Supreme Court as a Visiting Judge in many Western Ohio counties from 1996 to 2011.

Judge Welbaum was born in Troy, Ohio and was graduated from Troy High School in 1970.  He was graduated Cum Laude with a B.S. degree from The Defiance College in 1974.  He worked his way through law school and was graduated from the Ohio Northern University Pettit College of Law with a J.D. degree in 1977.  Judge Welbaum was admitted to practice law in Ohio in 1977.  He is also admitted to practice before the U.S. District Courts of Northern and Southern Ohio, the U.S. Sixth Circuit Court of Appeals, and the United States Supreme Court.

Prior to his judicial service, Judge Welbaum was in the private practice of law with Miller, Schlemmer, and Luring Co., LP.A., (1981-1989).  He also served as an Assistant Prosecuting Attorney (1978-1982), Assistant Miami County Public Defender (1982-1984), Special Assistant United States Attorney, S.D. Dayton, Ohio (1990-1993), and ten years as the elected Miami County Prosecuting Attorney (1985-1994).  From 2011 to 2013 Judge Welbaum served as Chief of the Criminal Justice Section of Ohio Attorney General Mike DeWine.

Judge Welbaum is a member of the Miami and Montgomery County Bar Associations, and the Ohio State and American Bar Associations.  He previously served as President of the Miami County Bar Association.  He has served the community in many leadership positions and received numerous awards for his service.  He lives in Troy with his wife Peg.  They have two adult children.