About Diana

Diana Tomazin is the sole practitioner of Tomazin Law Office in Arnprior, Ontario, where her main area of practice is family law. She's supported by an experienced law clerk and a process server. Tomazin earned her undergraduate degree in History and English from the University of Guelph, then graduated from law school at the University of Ottawa in 2003. She was called to the bar in 2004 and is licensed in Ontario as a barrister, solicitor and notary public. She belongs to the Law Society of Upper Canada, the Canadian Bar Association and the Renfrew County Law Association, and volunteers with the Arnprior Rotary Club and other local organizations.

Practice areas

Family Law Real Estate Law

Education & credentials

Law school
University of Ottawa
Undergraduate
University of Guelph, Bachelor of Arts in History and English

Listing compiled from public sources in July 2026. Confirm Diana Tomazin’s licence and standing in the Law Society of Ontario directory ↗