Following his graduation Dib Nehme was involved in business. He was elected as the president of the municipality council of Deir al-Qamar in 1963. In addition, he became a member of the Parliament in 1992 and served there until 2005. His term as president of the municipality council of Deir al-Qamar continued until 1998. After the end of the Civil War Dib Nehme actively worked for the return of theChristian Lebanese to the region who had to leave their homes.