The people of State House District 52 elected Deborah as their State Representative where she served from 2016-2020. In September of 2019, Deborah was chosen to represent Georgia on an economic development trip as guest of the Japanese government. Speaker David Ralston appointed Deborah Chairman of the House MARTOC Committee that oversees MARTA and named her a Deputy Whip. "Engineering Georgia" magazine highlighted Deborah as one the Top 100 Most Influential Women in Georgia. She served on the Judiciary, Health and Human Services, Judiciary Non-Civil, Code Revision, Appropriations Subcommittee on Education and the State Planning and Community Affairs Committees.

In 2022, Deborah was reelected to the Georgia House of Representatives to represent the new House District 53 following the 2020 census. Speaker Jon Burns reappointed Deborah as the Chairman of the MARTOC Committee, as well as Vice Chair of the Judiciary Non-Civil Committee. Deborah received the "White Rose Award" from the Israeli Consul General for her work on behalf of Jewish Georgians and was recently named the "Freshman Legislator of the Year" by the Georgia Chamber of Commerce. Deborah currently serves on the Board of Trustees for the Richard B. Russell Library at the University of Georgia, the Georgia Commission on the Holocaust, the Advisory Board for the Chastain Park Conservancy, the Advisory Council for the Sandy Springs Conservancy and is an active member of the Sandy Springs Society.

For over thirty years, Deborah has been married to Dr. Hal Silcox III. Deborah and Hal have two grown children, Elizabeth and Hal IV, and are members of Peachtree Presbyterian Church.