Nassif is a barrister and solicitor, and a partner in Clyde & Co's Middle East dispute resolution group based in the Dubai office. He is the lead partner of Clyde & Co's Middle East arbitration group.
Nassif practises corporate and commercial litigation and arbitration with an emphasis on shareholder, agency, management, distribution, banking, finance and real estate disputes, and financial crimes. Nassif represents a wide range of businesses, including financial institutions and leading multinational companies in the leisure and hospitality, energy, transport and defence logistics sectors.
In 2017, Nassif was one of 12 members of the task force that advised the Sharjah International Commercial Arbitration Centre (Tahkeem) on the reform of its arbitration rules. In November 2017, Nassif was named to the executive committee of the Sharjah International Commercial Arbitration Centre (Tahkeem).
Nassif has appeared as party counsel in over 35 international arbitration proceedings administered under a wide range of rules, including the AAA, DIAC, DIFC-LCIA, ICC, LCIA and UNCITRAL. He has been appointed as sole arbitrator or chairman of the tribunal in a number of DIAC and DIFC-LCIA proceedings.
The Legal 500 ranks Nassif one of seven leading individuals for dispute resolution in the United Arab Emirates and reports that he is "excellent in dispute strategy".
Nassif was listed among Asian-MENA Counsel's External Counsel of the Year 2013 for the United Arab Emirates as voted by the in-house community, where in-house counsel is reported to have said "[Nassif] is the best arbitration lawyer".
Nassif is a Canadian national. He is fluent in English and French, and speaks Arabic.