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Trusted Legal Services in Oakville
O'Connor Mac Leod Hanna, widely known as OMH, is the largest full-service law firm in Halton with over five decades of experience serving the Greater Toronto Area and beyond. Our client-focused team prioritizes understanding individual needs to deliver personalized legal solutions supported by exceptional service and a standard of excellence. We offer expertise in business law, real estate, litigation and dispute resolution, labour & employment, municipal & land development, expropriation, and wills, trusts & estates. Our team combines Bay Street-caliber lawyers with homegrown talent, providing top-tier legal services matched with value and results.

Whether assisting with real estate transactions, business structuring, or estate planning, our dedicated professionals work collaboratively to align legal strategies with client goals. We maintain a strong commitment to community involvement, demonstrated through sponsorships and participation in local initiatives like the United Way Plane Pull. Our lawyers are recognized for their specialized knowledge, innovative problem-solving, and dedication to achieving favorable outcomes across diverse legal matters.
Services
Business Law Real Estate Litigation & Dispute Resolution Employment & Labour Municipal Law Land Development Expropriation Wills & Estates
Highlights and features
  • We have over 50 years of combined legal experience across multiple practice areas
  • Our team includes Bay Street-caliber lawyers with specialized expertise in diverse legal fields
  • We provide personalized solutions tailored to individual client goals and circumstances
  • We maintain a strong commitment to community involvement and local initiatives
  • Our client-focused approach emphasizes clear communication and strategic legal planning
Services
Business Law
Our Business Law Group provides comprehensive legal support for corporations from start-ups to multinational entities. We handle business structuring, mergers & acquisitions, commercial contracts, and corporate governance matters. Our lawyers deliver strategic advice on employment law, franchise agreements, and private equity transactions while maintaining a client-focused approach to complex legal challenges.
Real Estate
OMH's real estate practice covers transactions, leases, financing, and disputes for residential and commercial properties. Our lawyers assist with land development, title registrations, and zoning compliance across Ontario. We provide tailored solutions for property owners, investors, and developers navigating complex real estate matters in both urban and rural settings.
Litigation & Dispute Resolution
Our litigation team handles business, real estate, and employment disputes through court proceedings and alternative dispute resolution. With decades of combined experience, we represent clients in appellate courts, arbitrations, and mediations. Our approach emphasizes risk assessment and proactive conflict prevention while maintaining strong advocacy in adversarial proceedings.
Employment & Labour
We provide comprehensive employment law services for employers and employees, including contract drafting, workplace policy development, and dispute resolution. Our practice covers wrongful dismissal claims, human rights issues, and labour relations matters. We offer strategic advice on compliance with employment standards and representation in tribunal proceedings.
Municipal, Land Development & Expropriation
Our municipal law practice advises on zoning regulations, land use planning, and development approvals. We represent clients in expropriation matters, ensuring fair compensation for property owners and businesses. The team provides strategic guidance on environmental compliance and administrative law issues affecting both public and private sector clients.
Questions
What areas of law does OMH specialize in?
We specialize in business law, real estate, litigation & dispute resolution, employment & labour, municipal law, land development, expropriation, and wills & estates.
Does OMH serve clients outside Oakville?
Yes, we serve clients throughout the Greater Toronto Area and beyond from our Oakville base.
What experience does OMH have in business law?
Our Business Law Group has decades of experience handling corporate structuring, mergers & acquisitions, and commercial contracts for local and multinational clients.
How does OMH approach community involvement?
We actively participate in local initiatives like the United Way Plane Pull and sponsor Oakville Chamber of Commerce events.