YPDaily: Marc Richardson Arnould By Notable Life By Notable LifeView Author|March 5, 2013|Young ProfessionalsView Young Professionals Marc Richardson Arnould is an associate in taxation at Osler, Hoskin & Harcourt LLP, one of Canada’s leading law firms, playing an exciting role in some of the country’s most significant and complex transactions. In addition to that, he is... View this article.