mechantaf law

commercial litigation | mediation | arbitration

Location
55 University Ave, Suite No. 1100, Toronto, ON M5J 2H7
Our hours
Monday - Friday 09:00 AM - 5:30 PM

About us

We advocate when needed. We resolve when possible.
At Mechantaf Law, we represent businesses, professionals, and individuals in complex disputes throughout the Greater Toronto Area and across Ontario. Our practice is built around a simple principle: the best outcome is not always achieved in the courtroom. We advocate when needed. We resolve when possible. And when mediation or arbitration offers a more effective path forward, we help our clients pursue it.
Our strength lies in merging the extensive experience typical of larger firms with the personalized attention of a boutique practice. This approach enables us to swiftly adapt to shifting legal environments and devise strategies to address our clients' ever-changing needs. Our practice focuses on commercial litigation, mediation, and arbitration, with experience across a range of business and civil matters, including corporate law, business disputes, construction law, real estate, professional liability, and personal injury. We understand that every dispute has legal, financial, and practical consequences. Our role is to identify those consequences, understand what matters most to our clients, and develop a strategy that serves their interests—whether that means negotiating a resolution, mediating a dispute, proceeding to arbitration, or vigorously advocating before the courts. Beyond representing clients, Mechantaf Law also provides mediation and arbitration services, serving as a neutral mediator or arbitrator to assist parties in resolving disputes efficiently, fairly, and thoughtfully.

Services

Commercial Litigation

Commercial disputes can affect a business far beyond the immediate legal claim. They can disrupt operations, strain business relationships and expose companies and individuals to significant financial risk. Mechantaf Law represents clients in commercial litigation in Toronto, the GTA and throughout Ontario, with a focus on complex contractual and business disputes. Matters may include: 1- Breach of contract and contractual disputes
2- Contract interpretation and enforcement 3- Commercial and business disputes
4- Shareholder and corporate disputes
5- Partnership and joint venture disputes
6- Commercial real estate disputes
7- Supplier and service-provider disputes
8- Payment and debt disputes
9- Misrepresentation and negligence claims
10- Commercial transaction disputes
11- Injunctions and urgent court applications
12- Claims for damages and other contractual remedies Every commercial dispute presents different legal and business considerations. The approach is to understand the client's objectives, assess the evidence and contractual framework, and develop a strategy designed to protect the client's position. Where appropriate, disputes may be resolved through negotiation, mediation or arbitration. Where court proceedings are necessary, Mechantaf Law provides focused litigation representation before the courts of Ontario.
Construction Litigation

Construction disputes can become complex quickly. Owners, developers, general contractors, subcontractors, consultants and other project participants may have competing contractual obligations and claims arising from the same project. Construction litigation is a core area of Mechantaf Law's practice. Khalil Mechantaf represents parties involved in construction and development disputes concerning projects in Ontario and beyond, including disputes involving: 1- Construction contracts 2- Construction deficiencies and defective work 3- Project delays and disruption 4- Change orders and variations 5- Scope-of-work disputes 6- Payment and non-payment claims
7- Contractor and subcontractor disputes
8- Construction damages
9- Contract termination
10- Negligence and professional liability
11- Construction lien-related disputes
12- Owner-contractor disputes
13- Contractor-subcontractor disputes
14- Commercial and infrastructure projects Construction disputes often require detailed analysis of contracts, project records, correspondence, schedules, payment documentation and technical evidence. Mechantaf Law combines legal analysis with an understanding of the contractual and commercial realities underlying construction disputes, with the objective of advancing the client's position efficiently and effectively.
Commercial and Construction Arbitration

Arbitration can provide an effective forum for resolving sophisticated commercial and construction disputes, particularly where a contract contains an arbitration clause or the parties have agreed to arbitrate. Mechantaf Law has handled commercial and construction arbitrations seated in Toronto and elsewhere across Canada, representing clients in disputes involving contracts, construction projects, commercial transactions, insurance and other complex business matters. Arbitration matters may involve: 1- Construction contracts, whether CCDC, FIDIC, or other standard forms
2- Commercial agreements
3- Breach of contract
4- Construction delays
5- Deficiencies and defective performance
6- Payment disputes
7- Project disputes
8- Contract interpretation
9- Commercial transactions
10- Insurance disputes
11- Damages claims Mechantaf Law can assist clients with arbitration proceedings from the initial assessment of the dispute through pleadings, procedural matters, evidence, hearings and resolution. Our broader arbitration experience also includes proceedings conducted under major institutional and ad hoc arbitration frameworks, providing clients with experience applicable to both domestic and cross-border disputes. For a dispute that could proceed through either arbitration or the courts, the firm can assess the advantages, risks and strategic considerations associated with each forum.


Insurance Litigation

Insurance disputes can involve substantial financial exposure, particularly where a claim arises from property damage, construction, commercial operations or other significant losses. Mechantaf Law represents clients in insurance litigation and insurance-related disputes, including matters involving: 1- Insurance coverage 2- Denied or disputed claims 3- Policy interpretation 4- Commercial insurance disputes 5- Property damage claims 6- Liability claims 7- Construction-related insurance disputes 8- Contractual insurance obligations 9- Insurance-related litigation Insurance disputes require careful consideration of both the policy language and the circumstances giving rise to the claim. The firm works to identify the relevant contractual obligations, assess the available evidence and determine an appropriate strategy for resolving or litigating the dispute.


Arbitrator & Mediator Appointments

In addition to representing clients in litigation and arbitration, Khalil Mechantaf is available for appointment as an arbitrator or mediator in appropriate commercial, construction and contractual disputes. His experience as counsel in complex disputes provides a practical understanding of the legal, contractual and commercial issues that often arise in these matters. This perspective can be valuable when acting as a neutral to help parties resolve a dispute efficiently and fairly. Arbitrator Appointments Khalil may be considered for appointment as an arbitrator in commercial and construction disputes, including matters involving: 1- Construction contracts and project disputes 2- Contract interpretation and breach of contract 3- Construction delays and deficiencies 4- Payment and change-order disputes 5- Contractor, subcontractor and owner disputes 6- Commercial agreements 7- Business and shareholder disputes 8- Commercial damages claims 9- Insurance and contractual indemnity disputes Depending on the nature and complexity of the matter, an arbitration may be conducted in Toronto or elsewhere in Canada. As an arbitrator, Khalil approaches each appointment independently and impartially, with careful attention to the applicable arbitration agreement, procedural framework, evidence and issues in dispute. Mediator Appointments Khalil is also available for appointment as a mediator in commercial and construction disputes. Mediation can provide parties with an opportunity to resolve a dispute without the time, expense and uncertainty associated with a contested hearing or trial. His experience in commercial and construction disputes allows him to engage with the legal and practical issues that can make these disputes difficult to resolve, while maintaining the neutrality required of a mediator. Mediation appointments may be appropriate for disputes involving: 1- Construction projects and contracts 2- Payment disputes 3- Delays and deficiencies 4- Commercial contracts 5- Business disputes 6- Contractual claims 7- Insurance-related disputes 8- Commercial damages claims
Khalil is available to be considered for arbitrator and mediator appointments in Ontario, Canada, and internationally. Parties, counsel and institutions seeking an experienced neutral for a commercial or construction dispute may contact Mechantaf Law regarding availability and potential appointment.
Khalil Mechantaf, Q.ArbAdmitted to the Law Society of Ontario and Senior Courts of England & Wales
Khalil Mechantaf (He/Him)Ph.D., LL.M., Q.Arb
Called to the bar in 2009, Khalil Mechantaf is a bilingual, dual-qualified lawyer based in Toronto, with 16 years of experience advising and representing clients in complex commercial, construction, contractual, insurance and dispute-resolution matters. Before founding Mechantaf Law in 2024, Khalil practised at leading English, U.S., and Canadian law firms, acting for businesses, Fortune 100 companies, public-sector bodies, and other institutional clients in high-value commercial disputes. Khalil has represented clients across the business and construction supply chains in matters involving a broad range of project delivery models, contractual frameworks, and institutional arbitration rules. His work combines strategic advisory support with advocacy before courts, arbitral tribunals, mediators, dispute adjudication boards, and other decision-makers. Khalil serves clients throughout Toronto and the Greater Toronto Area (GTA), as well as clients and disputes elsewhere in Ontario and Canada. In addition to his counsel practice, Khalil sits as an arbitrator and mediator. He holds the Q.Arb designation from the ADR Institute of Canada and regularly speaks at legal and industry conferences in Canada and internationally. Through Mechantaf Law, Khalil provides clients with focused, senior-level advocacy, practical judgment, and direct client attention in complex commercial disputes.
Khalil speaks English and French, and is happy to serve clients in either language. 
EDUCATION
University Paris-1, Panthéon Sorbonne, 2019Ph.D. in International Arbitration
University College London, 2011LLM in International Business Law magna cum laude
University Paris 11, 2005Masters Diplomacy & Strategic Negotiations magna cum laude
University La Sagesse, 2003Bachelor of Laws (LL.B.) cum laude
MEMBERSHIPS
ADR Institute of Canada roster of arbitrators
Vancouver International Arbitration Centre panel of arbitrators
CBA ADR section, Secretary 


Testimonials

When we found ourselves in a complex shareholder relationship, Mechantaf Law provided invaluable counsel and guidance. They took the time to understand the full scope of the situation, including the nuances of our shareholder agreements and business structure. The legal opinion they provided was not only precise but also offered creative solutions that helped us in finding different perspectives. We greatly appreciate their expertise and highly recommend their services.
I cannot thank Mechantaf Law enough for their expert guidance in navigating the complexities of recovering our assets. Their strategic approach in negotiating with the relevant parties was invaluable. Their dedication, clear communication, and commitment to securing the best possible outcome have been truly commendable.
Zander Trottier, CEO
Grafe LibaoGB Systems
Sawssan Alayche, CEOLouis Le Grand
Khalil combines sharp legal analysis with practical commercial judgment. He is strategic, responsive, and highly effective in guiding clients through complex disputes.