Marcia was appointed Joint Cabinet Lead for Healthier Communities in May 2022 and has been a councillor in Lambeth since 2006. As Deputy Cabinet Member for Customer Services, Marcia helped to set-up the Customer Service Task Force to improve Council service delivery. For the Council year 2017 to 2018 Marcia was Mayor of Lambeth and nominated Carers 4 Carers (a support group for Carers) and Oasis Youth Hub (who support young victims) as her Mayoral charities. Outside of Lambeth Council, Marcia manages a family centre that caters for children in need and with challenging behaviour. She also works as a Business Development Co-ordinator for a community organisation.