Tahwila is an articling student at Shillington McCall LLP. She obtained a Bachelor of Arts from Western University, and a Master of Arts in Social Justice and Community Engagement from Wilfrid Laurier University. During her Masters, she did a ten-month placement with a legal clinic.

Tahwila completed her law degree at the University of Victoria. She summered with the British Columbia government in the Policy, Legislation and Litigation Division, as well as with the Ottawa Community Legal Services. At law school, Tahwila volunteered with the Pro Bono Students Canada, the British Columbia Human Rights Clinic, and the Appeal Law Journal. Further, she competed in moots and was awarded first place in The British Columbia Law Schools Competitive Moot, and a factum award at the Gale Cup Moot.