Mitchell graduated from the University of New Brunswick in 2007 and 2010 with his Bachelor of Business Administration and Bachelor of Law, respectively.
Mitchell articled with Barbara Hughes Campbell from July 2010 to August 2011 and was admitted to the New Brunswick bar on August 2, 2011. He enjoyed working as a team with Barbara Hughes Campbell and Heather Ann Berry so much that he didn't want to leave; he has continued to work in the office as a lawyer ever since.
Like Barbara Hughes Campbell, Mitchell's practice is general with an emphasis on divorce and family law, real estate, wills and estates, personal injury, and corporate/small business law. He also does work as an Agent for the Federal Crown.
As a hobby, Mitchell plays the strategy card game Magic: The Gathering competitively. He has been the Provincial Champion of New Brunswick multiple times and he has also played on the Pro Tour.