Lucas graduated from the J.D. program at the University of British Columbia. He previously completed a Bachelor of Science in Natural Resources Conservation at the University of British Columbia, where he received the H.R. MacMillan Prize in Forestry for graduating at the head of his class.
While in law school, Lucas served as VP Finance for both the Environmental Law Group and the Sport, Entertainment, and Law Society. He also represented the University of British Columbia at the 2022 BC Law Schools Competitive Moot.