David acts for domestic and international business enterprises on the resolution of income tax controversies and commodity tax disputes. He advises clients on the management of Canadian tax audits and pursues objections and appeals with federal and provincial tax authorities across a wide range of issues. David has appeared frequently before the Tax Court of Canada and the Federal Court of Appeal and acted as counsel on the first GST appeal heard by the Supreme Court of Canada. He also assists taxpayers in preparing and filing large voluntary disclosure applications and applications for taxpayer relief and has settled significant disputes with the tax authorities on a favourable basis at the pre-assessment, objection and trial stage.
Chambers Global 2013: The World's Leading Lawyers for Business quotes sources who say he is "fair-minded and intelligent – an outstanding young lawyer." One client added: "He does a good job on preparation and is excellent in the courtroom." David has achieved an “AV” Peer Review Rating from Martindale-Hubbell. AV Preeminent is a significant rating accomplishment - a testament to the fact that a lawyer's peers rank him or her at the highest level of professional excellence.
David is also recognized for his expertise in tax litigation by the Eighth Edition of Best Lawyers in Canada, International Tax Review's World Tax 2013, The 2013 Lexpert/American Lawyer Guide to the Leading 500 Lawyers in Canada, International Tax Review's Tax Controversy Leaders (Canada) 2013, and The 2013 Lexpert Guide to the Leading US/Canada Cross-Border Litigation Lawyers in Canada. His expertise has been sought by the House of Commons Standing Committee on Finance who, on November 25, 2013, asked David to give evidence on the loophole-closing provisions of Bill C-4, Economic Action Plan 2013 Act No. 2.
David is a member of the editorial board of Tax Litigation, The Advocates’ Society, Canadian Tax Foundation, International Fiscal Association, Canadian Bar Association and American Bar Association. He is a past Co-Chair of the Toronto Centre Canada Revenue Agency & Professionals Group and founding Chair of the Tax Litigation Skills Certificate Program at The Advocates’ Society. David is a former member of the Minister's Advisory Committee on Appointments for the Tax Court of Canada and the Tax Court Bench and Bar Committee.