John Andrew Olthuis is one of the founding partners of OKT. His practice includes litigation, comprehensive and specific land rights, self-government, and impacts and benefits agreements. John was on the legal team of the Assembly of First Nations in negotiations with Canada and the provinces lending to the inclusion of "Section 35" in Canada’s repatriated Constitution in 1982. John was legal counsel to Chiefs of Ontario and table negotiator at the Aboriginal Government table for the Assembly of First Nations in the Charlottetown Accord Constitutional negotiations. He has appeared as counsel in environment cases and before various federal boards, commissions, and agencies across Canada, including the National Energy Board, the Berger Commission, and federal and provincial environmental assessment panels. John has been selected annually by his peers for inclusion in directories of leading lawyers in the area of Aboriginal Law, including in The Best Lawyers in Canada 2014 and The Best Lawyers in America 2008. He has consistently been listed as Most Frequently Recommended by The Canadian Legal Lexpert® Directory. In 2010, John was selected as Lawyer of the Year – Aboriginal law by The Best Lawyers in Canada. John was admitted to the Alberta Bar in 1965 and the Ontario Bar in 1987.