Osler’s Derivatives Advisory Group

Our core derivatives team - Osler partners Kashif Zaman, Lisa Mantello and Tim Hughes.

Our core derivatives team – Osler partners Kashif Zaman, Lisa Mantello and Tim Hughes.

Osler’s Derivatives Advisory Group has acted on some of the most complicated and creative derivatives trades in the industry. We are Canadian counsel to the International Swaps and Derivatives Association, Inc. (ISDA), the International Capital Markets Association (ICMA), and the International Securities Lending Association (ISLA). We are the only Canadian law firm offering a comprehensive, multi-disciplinary approach to structuring and negotiating derivative transactions.

We understand the business of derivatives. We are sought out for our commercially-minded approach and creativity in solving our clients’ most complex structural, regulatory, tax and risk management issues.

We are known in the marketplace among all industry participants and advise both Canadian and international “buy side” and “sell side” clients on the negotiation and structuring of derivatives trades.


Timothy Hughes

Partner, Taxation

Lisa Mantello

Partner, Banking and Financial Services

Kashif Zaman

Partner, Financial Services

The Canadian Legal Lexpert Directory, 2018, Toronto, Ontario, Osler ranked in the area of Derivative Instruments practice as Repeatedly Recommended

IFLR Americas Awards, 2018, Osler named “Capital Markets firm of the year”.

IFLR 1000: The Guide to the World’s Leading Financial Law Firms, ranked in the areas of Capital Markets, Banking and Financial Services Regulatory.

The Chambers Global: The World’s Leading Business Lawyers, 2018, Band 1, recognized in the areas of Capital Markets and Taxation.

International Tax Review, 2018, Tier 1, recognized as one of the Best Transactional Firms in Canada.