Jonathan Born

Melissa is a partner in our commercial leasing department and has dedicated her career to representing commercial landlords and tenants in a variety of commercial leasing matters. She has expertise in managing commercial lease transactions for all types of properties, including office, retail, industrial and mixed-use. Melissa's practice includes the interpretation of commercial leases and the coordination of major projects, including multi-location deals and due diligence on acquisitions. He...

Nicole Sigouin practises in all areas of banking and finance. She has extensive experience acting for financial institutions and borrowers in connection with domestic and cross-border debt financing transactions, asset-based lending, project finance, acquisition financings and complex financial restructurings (including the ground-breaking $32 billion restructuring of third-party asset-backed commercial paper in Canada). She is a member of our special situations team, applying her experience ...

As a partner in the Firm, Sarah acts for employers in both the federal and provincial jurisdictions. Her clients operate in a range of industries, including manufacturing, telecommunications, retail, financial services and pharmaceutical. Before joining Filion, Sarah practiced management-side labour and employment law with a global firm. Sarah provides practical and strategic advice to employers on all aspects of labour and employment law. She regularly acts as counsel in wrongful dismissal l...

Described by his peers as ‘the gold standard in this space, a phenomenal litigator’, for more than thirty years Jonathan has won landmark decisions across a broad variety of subject matter including competition law, constitutional law, liability of public authorities, professional liability, criminal law, financial services, franchise law and contract disputes. He has tried over 90 cases to judgment and argued over 55 appeals in provincial appellate courts and the Supreme Court of...

Paul Hancock is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law. Paul, who practices law in Toronto, Ontario, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Paul is held by other top lawyers in the same geographic and legal practice area.

Michael Winterstein is a top attorney recognized by Best Lawyers in the practice area(s) of Labour and Employment Law. Michael, who practices law in Toronto, Ontario, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael is held by other top lawyers in the same geographic and legal practice area.

Biography David Gadsden represents global clients in complex commercial disputes. He is the Chair of Baker McKenzie's Canadian Class Actions Group and is known for his sound advice on commercial class actions, competition and antitrust matters, arbitration, fraud cases and product liability matters. Clients value David's pragmatic and determined approach to disputes and have described him as "absolutely terrific at bringing across the finish line the most complex and multidimensional issues"....

Jackie VanDerMeulen practices all aspects of labour, employment and human rights law. She is a skilled advocate who regularly represents employers in labour arbitrations, interest arbitrations, federal and provincial labour board matters, human rights proceedings (including pay equity), employment litigation and applications for judicial review. She also supports employers with collective bargaining and day-to-day employment advice. Jackie has gained valuable experience in pay equity, employm...

Sloan Mandel was called to the Ontario Bar in 1996 and is certified by the LSO as a specialist in Civil Litigation. He is a partner at the law firm Thomson Rogers. He attended Cornell University and graduated from Osgoode Hall Law School in 1994. His practice focuses exclusively on personal injury and medical malpractice litigation on behalf of plaintiffs. Sloan is one of only 14 plaintiff-side personal injury lawyers in the province to have been concurrently listed in The Canadian Legal Lexp...

Alf earned his JD from the U of T in 1970. He and Morris Singer founded the firm in 1974. He has appeared at all court levels including the Supreme Court of Canada, where he appeared on behalf of the successful plaintiff in the landmark decision of Oldfield v. Transamerica Insurance. Alf has achieved some of Canada’s largest jury awards for punitive damages against an insurer. He acted for the plaintiff in the milestone case of Kamin v. Kawartha Dairy, which reduced the onus on plaintif...