In 1916, David Meck Sr., along with several other attorneys, founded John Marshall School of Law. He served as a member of the faculty, teaching Contracts and Bailments & Carriers, and as dean, until his death in 1939 when he was succeeded by his son, David Meck, Jr. He was known as a leader who understood and supported his students’ endeavors to obtain a professional education. In 1924, the Governor of Ohio appointed him to the Municipal Bench of Cleveland. He was elected to a six-year term in 1925 and retired from the bench in 1931. During his tenure, he took a firm stand against admitting evidence that had been illegally obtained, as demonstrated when he punished two officers who had testified that they had search warrants when evidence showed that they had not.