Michel Lajoie holds an associate degree from Southern Maine Technical College and has completed additional leadership training at Central Maine Vocational Technical Institute and the Androscoggin Leadership Development Institute. He spent over three decades in public safety, culminating in his role as the chief of the Lewiston Fire Department. Lajoie has also served as a member of the Maine Fire Protection Services Commission and the Maine Fire Service Institute Advisory Board. His experience includes leadership roles in local government, having served as a Lewiston City Councilor and council president.

Michel Lajoie's political identity is shaped by his long-standing commitment to local governance and public safety, underpinned by a background in firefighting and small business ownership. His legislative focus on criminal justice and public safety, combined with his roles in fire safety and emergency services, reveals a deeply rooted dedication to community protection and resilience. Lajoie's strategic approach often merges traditionally opposing viewpoints, as seen in his nuanced stance on environmental regulations, suggesting a calculated method to balance regional industrial interests with broader policy goals. His rhetorical style likely emphasizes personal experience and community-centric solutions, making his policy positions both relatable and pragmatically driven.