Lucas commenced pupillage at Lloyds PR Solicitors in 2024. Before beginning his pupillage, Lucas worked as a legal advisor at Co-op Legal Services and later acted as an independent advocate representing people deprived of their liberty in the care sector. Alongside these positions, Lucas volunteered in the UNHCR mobile courts in Uganda where he advised refugees of the South Sudan Crisis confronted with serious criminal charges including rape, arson, and theft. Lucas pursued his legal studies at the University of Bristol and was awarded an Inn's of Court scholarship before successfully completing the Bar Training Course. He was called to the bar in 2023.