The mission and purpose of sister cities is to foster friendship and trade between two cities; the means is by facilitating joint projects such as economic development initiatives, people to people exchanges, cultural and religious endeavors. Dr. Heller, since 1995, has served as a Member of the Atlanta Sister Cities Commission.
- 1995 – 98: Chaired the Atlanta – Rio de Janeiro Sister City Committee
- 1999: Founded the Atlanta – Ra’anana Sister City Committee with great help from many wonderful people
- 2001: Atlanta – Ra’anana Committee established as Atlanta’s 17th sister city