​​Justin Beirne was educated at St Joseph’s College Nudgee Junior, Brisbane Grammar School, the Queensland University of Technology and Griffith University. He graduated university with a Bachelor of Commerce and Bachelor of Laws. Since admission as a solicitor in 1997, Justin has specialised in insurance litigation and is a partner of Quinlan Miller & Treston Lawyers.

Justin has completed a 6 year tenure upon the Finance Committee of Brisbane Catholic Education and is a member of the Finance Council of The Cathedral of St Stephen, his parish. He is married to Justine, also a lawyer, and they have two children.