David Meck Jr. began practicing law in 1935, embarking upon an outstanding record of public service. He served as assistant police prosecutor for the city of Cleveland from 1935-1938, assistant city law director from 1938-1941, and regional supervisor of the Federal Security Agency from 1942-1944. He was elected to the Municipal Court of Cleveland in 1943. During his early tenure as a municipal judge, he was called to service and performed as a consultant to the American Economic Mission in the Middle East. After performing his mission, he returned to the court and was reelected to another six-year term. Meck served on the faculty of John Marshall School of Law from 1930-1939, when he became dean, guiding the growth and progress of the school until it merged with Cleveland Law School in 1946. His longtime involvement with the law school included serving as director of education, a member of the executive committee, and a trustee of the successor school.