Allan founded Donovan & Company in 1996, after practicing at a prominent litigation boutique firm for eight years. He received his law degree from the University of Calgary in 1986 and was called to the bar in British Columbia in 1989. Allan received his Masters of Laws from the University of Cambridge in June 1987.
Allan has practiced aboriginal law and represented First Nations for over 20 years. Allan has worked extensively in all areas of aboriginal law including aboriginal rights and title, negotiations, litigation,
specific claims, residential schools, taxation and business development, and aboriginal governance. He has represented First Nations and aboriginal people at the Supreme Court of Canada, the British Columbia Court of Appeal, the British Columbia Supreme Court, the Federal Court of Appeal, the Federal Court of Canada, the Tax Court of Canada, the British Columbia Provincial Court and the Indian Claims Commission.
Allan is recognized by the Canadian Legal Lexpert Directory as "Consistently Recommended" and one of the Leading Practitioners in the area of Aboriginal Law. He was voted as one of the leading lawyers in Canada in the area of Aboriginal Law in a peer-reviewed survey published in the inaugural edition of The Best Lawyers in Canada published in June 2006 and every year since.