Lauren Tomasich, is a Partner in the Osler litigation group and a key contact for the Commercial Arbitration and ADR Group. Her corporate litigation practice has particular emphasis on class action defence, securities litigation, regulatory investigations and international commercial arbitration. She represents various companies facing class actions in a variety of circumstances, including claims of environmental property damages, securities, product liability and pensions and beneﬁts. She has experience at all stages of a class proceeding, including certiﬁcation motions, various procedural motions, a large common issues trial and appeal, and costs proceedings. In the regulatory sphere, Lauren has experience with securities regulatory investigations involving multiple Canadian jurisdictions, and also in the cross-border context. Lauren’s international commercial arbitration work has been primarily focused on the mining and resource industries. Lauren has experience with arbitrations under a variety of procedural rules, including as well as in ad hoc arbitrations.