Experienced Toronto Business Lawyers

At Mills & Mills LLP, we pride ourselves on providing expert advice to businesses of all sizes. From small start-ups to large multi-national corporations, all of our clients benefit from our keen attention to detail and personalized service. Our clients know that by retaining us as their business lawyers, they will receive individual attention and establish meaningful relationships with our business law professionals, while benefiting from knowledge, expert skill and capabilities equal to the city’s largest corporate-commercial law firms.

Our lawyers are experienced business advisors, assisting clients in all matters of business law from formation to dissolution. We help to facilitate our clients’ day-to-day business needs, and we ensure that they are aware of their responsibilities under the relevant provincial and federal legislation. Our lawyers are also adept at advising on and overseeing more complex issues such as shareholder disputes, extra-jurisdictional expansion and mergers and acquisitions.

Accessibility, Professionalism and Integrity

While there are many business lawyers and law firms in Toronto, our clients choose us for our personalized service and expert knowledge of business law. Our clients appreciate having a primary contact within the firm who is always accessible to them, while also benefiting from the collective experience and skill of our entire team. Our clients also respect our honesty and integrity, which are demonstrated by our commitment to providing them with realistic expectations in all circumstances.

Business Transactions and Operations

Our Toronto commercial and corporate lawyers have extensive experience with:

As our clients come to know us and trust our skill and responsiveness, they often turn to us for legal services outside of business law, in areas such as estate planning, family law and real estate transactions.

Contact the Business Lawyers at Mills & Mills LLP

To benefit from the individual, customized service and the superior business law knowledge that Mills & Mills LLP offers, please contact us at 416­-863-0125 or send us an email.

Business Law Testimonials

I must tell you that I consider myself to have been extremely lucky to have had you for my lawyer for these many years. It has often been a source of considerable comfort to me.

— DM

Mills & Mills has represented Cornerstone for over 27 years. We use it not so much because of its legal expertise, which is considerable, but because of its wise and practical advice. I have no hesitation recommending Mills & Mills to any company or business person interested in results.

— O.H., President and CEO

The business lawyers at Mills & Mills have handled all the legal work for my company since our inception in 2001. They have dealt with everything from setting up our initial partnership agreement, to reviewing contracts, setting up our employee stock option plan, and negotiating legal matters on our behalf with huge corporations. Their advice has always served us well, and saved us from a number of problems that never would have even occurred to us to worry about. They are knowledgeable, professional, and reliable, and I highly recommend his work.

— M.T.

As an author and business owner, I have a never ending flow of questions and needs that David has been able to quickly resolve in a timely, professional manner. At the same time, David has a way of easing any situation with compassion for his clients. (A rare find!) I highly recommend David's outstanding services.

— J.J.

David consistently listens well, proposes well thought out solutions for current challenges and responds promptly. David has always shown a great depth of knowledge and understanding of current circumstances, their possible solutions and ramifications. I highly recommend David Mills.

— S.S.

David is a reliable and trustworthy lawyer and I would recommend him and his firm to anyone seeking legal advice.

— K.M.

Business Law Lawyers

  • David A.S. Mills

    David A.S. Mills

    Managing Partner

    David is proud to represent the fourth generation of Mills to practice at the firm. He is a great-grandson of Alexander Mills, K.C., one of the founders, grandson of Ralph S. Mills, Q.C., and a son of...

    416-682-7138 | Email
  • Geoffrey R. Cobham

    Geoffrey R. Cobham


    Geoffrey's practice primarily encompasses civil litigation, employment law, estate administration and estate planning. His litigation practice is comprised of several areas, including wrongful dismis...

    416-682-7109 | Email
  • J. Paul Mills, Q.C.

    J. Paul Mills, Q.C.


    Paul's practice is focused on assisting Estate Trustees with the administration of Estates and acting as Estate Trustee. Paul represents the third generation of lawyers in the Mills family at the f...

    416-682-7110 | Email
  • Denise E. Robertson

    Denise E. Robertson


    Denise joined Mills & Mills LLP in 2005. Denise's practice is focused on private business, corporate and regulatory law. Denise assists business owners through providing practical and valuable leg...

    416-682-7139 | Email
  • Paul J. Westlake

    Paul J. Westlake


    Paul served his articles with Mills & Mills and joined the firm in 1975. He became a partner in 1981. Paul advises business clients on all aspects of their operations including incorporations, acquisi...

    416-682-7118 | Email
  • Gordon A. Ullman

    Gordon A. Ullman


    Gordon received his undergraduate degree from Yale University and then obtained his Bachelor of Law from the University of Western Ontario. He was called to the Ontario. Bar in 1984. Gordon practic...

    416-682-7078 | Email
  • Heather Keachie

    Heather Keachie


    Heather practices in the areas of business law and charity and not-for-profit law. She provides corporate and commercial services to businesses, and acts as a general corporate counsel to charities an...

    416-682-7130 | Email
  • Michelle J. Santarossa

    Michelle J. Santarossa


    Michelle provides clients with general counsel and advice on legal issues relating to ongoing business activities. She assists clients that range from owner operated businesses to multinational corpor...

    416-682-7069 | Email
  • Daniel H. Thomson

    Daniel H. Thomson


    After practising for nearly a decade with Stikeman Elliott LLP, running a commercial business unit for a large multi-national insurance company for two years and starting up and building his own legal...

    416-682-7128 | Email

For over 130 years, Mills & Mills LLP has earned a reputation amongst our peers and clients for quality of service and breadth of knowledge. To learn more about our services and how we can put our knowledge to work for you, call us at 416-863-0125 or send us an email.

Latest Blog Posts


When explaining the purpose of various clauses in clients’ Wills with them, one clause that always seems to peak clients’ interest is the “Community of Property” clause. Essentially, this clause can help protect a beneficiary’s property from ending up in the hands of that beneficiary’s ex-spouse. This is understandably an important consideration for many clients…

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Three-month interest
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Many mortgagees will add a three-month interest penalty to their Discharge Statements delivered to mortgagors who are in default. Frequently those mortgagees will also deduct the three months’ interest penalty from proceeds of sale even if they are the ones who have caused the property to be sold by Power of Sale. Their entitlement to…

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The Better Local Government Act
Author: and

The August 14th passage of The Better Local Government Act (the “Act”), which reduces the number of wards for Toronto’s October Municipal election from 47 to 25 , triggered a cacophony of legal discourse concerning the impact of the legislation on municipal representation. On August 31st, several members of Mills & Mills LLP attended the…

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