Leigh Crestohl > Zaiwalla & Co > London, England > Lawyer Profile

Zaiwalla & Co




Leigh has 20 years of experience advising clients across a broad range of commercial disputes including: contact claims; shareholder remedies and joint venture agreements; property disputes; international sales and distribution agreements; construction and engineering; intellectual property and banking and financial regulatory matters. He practiced for several years with Ogilvy Renault (now Norton Rose Fulbright Canada), followed by seven years in the Paris and London offices of international law firm Clifford Chance. He is qualified as an English solicitor and admitted as a lawyer in Quebec and Ontario. 

In addition to international and cross-border disputes, Leigh’s practice also includes a focus on the international commercial arbitration and investment disputes. He represents client in proceedings before the arbitration tribunals constituted either ad hoc or under the auspices of arbitration institutions. He is a member of the London Court of International Arbitration (LCIA; Chartered Institute of Arbitrators and he is on the panel of arbitrators of the ICC Canada National Committee.


  • English
  • French (fluent)
  • Polish (intermediate)


  • London Court of International Arbitration
  • Chartered Institute of Arbitrators
  • Barreau du Quebec
  • Law Society of Upper Canada


  • B.A. Joint Hons. (McGill, Canada, 1990)
  • B.C.L (McGill, Canada, 1994)
  • LL.B (McGill, Canada, 1994)

Lawyer Rankings

London > Dispute resolution > International arbitration

Zaiwalla & Co undertakes complex and high-value international arbitrations, which often emanate from developing and high-growth economies, particularly India, Russia and the Middle East; the team also consistently receives instructions from Iranian companies. Leigh Crestohl leads the international arbitration department, and Sarosh Zaiwalla has over 40 years’ arbitration experience.

London > Dispute resolution > Commercial litigation: mid-market

Zaiwalla & Co is well-known for its involvement in substantial, multijurisdictional commercial litigation, much of which originates from developing and high-growth economies, such as India, Russia and the Middle East. Sarosh Zaiwalla, who has over 40 years of commercial litigation experience, has a strong track record in precedent-setting cases. Leigh Crestohl oversees the litigation department’s work.

London > Dispute resolution > Banking litigation: investment and retail

Excellent boutique firmZaiwalla & Co‘s litigation team has particular expertise in banking disputes relating to developing and high growth economies such as India, Russia, Iran, Venezuela and the Middle East. It is developing a niche in banking disputes involving international sanctions and public international law issues. Sarosh Zaiwalla and Kartik Mittal jointly lead the three-partner team which includes Leigh Crestohl and senior solicitor Rohit Ralleigh.