Charlotte Scott has worked in the fields of economic development policy, social development policy and NGOs for more than twenty years. Sata died in office on 28 October 2014. Vice-President Guy Scott succeeded Sata as the acting President of Zambia until a by-election could be held 90 days after Sata's death. The events made Charlotte Scott the First Lady of Zambia during this time. The couple became the country's first white President and First Lady. The Scotts did not move into Government House, the residence of the country's president. Guy Scott was barred by law from running for the remainder of Sata's unexpired presidential term because the Constitution of Zambia banned presidential candidates whose parents were not born in Zambia. His parents had immigrated to present-day Zambia from England and Scotland in the United Kingdom. Charlotte Scott was succeeded by Esther Lungu on 26 January 2015.