An Associate Professor in the Master of Historic Preservation Program at the University of Georgia (USA), he has also served as chair of the preservation commissions in the City of Decatur and DeKalb County and as vice chair in Athens, Georgia. He is a founding member of both the Georgia Alliance and National Alliance of Preservation Commissions as well as current President of the Athens Historical Society and a past President of the Athens-Clarke Heritage Foundation. Reap is currently a board member of the Lawyers Committee for Cultural Heritage Preservation and a past board member of the Georgia Trust for Historic Preservation and Preservation Action. He has provided training and technical assistance to preservation commissions throughout the United States.