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Aaron Grinhaus’ practice focuses on business law, tax and estate planning, including commercial transactions, corporate  reorganization, professional corporations and asset protection and securitization.

Mr. Grinhaus is also an experienced business, tax and Fintech consultant, who advises clients on Fintech strategies, including the use of Blockchain technology, smart contracts and cryptocurrency to reduce business costs, hedge institutional friction and expedite capital raises and cross-border wealth transfer transactions. He is a recognized Fintech expert, and is program director and faculty at Osgoode Hall Law School’s “Blockchains, Smart Contracts and the Law” Certificate program. He is also the author of the textbook “A Practical Guide to Smart Contracts and Blockchain Law” (LexisNexis: 2019).

Mr. Grinhaus frequently gives presentations on a variety of business, Fintech and tax law related topics and has acted as chair, presenter and lecturer through a number of organizations including the Ontario Bar Association (OBA), RBC Dominion Securities, Osgoode Hall Law School of York University and Michigan State University College of Law, among others. He is also heavily involved in the legal community having served on the Governing Council and several section executive boards of the OBA for over a decade and having served as Director and General Counsel for several not-for-profit and charitable organizations.

Mr. Grinhaus holds law degrees from the University of Ottawa (LL.B.), Michigan State University College of Law (J.D.) and a Masters in Tax Law from Osgoode Hall Law School of York University (LL.M.)


Associate Lawyer

Alex is an Associate Lawyer with Grinhaus Law Firm. His focus is on business and corporate-commercial legal issues, including asset and share sale transactions, corporate structuring and reorganization, contract negotiation and drafting, and advising businesses in emerging industries.

Alex’s entrepreneurial experience puts him in an excellent position to aid start-ups and small businesses. As the founder of a blockchain start up, he understands the issues pertaining to business owners not only as a lawyer, but as a business owner.

Alex’s entrepreneurial experience also gives him a unique perspective into the needs and issues which arise in business. He has experienced first-hand the challenges in navigating corporate and securities legislation and regulations.

In order to further meet the needs of clients in these areas he has become a candidate in the Canadian Securities Institute’s Chief Compliance Officer Qualifying Exam course and the IFSE’s Exempt Market Proficiency Course.

Alex received his H.BA from York University and his Juris Doctor from the University of Ottawa.

In his spare time (and when the weather permits) you might find Alex cruising through the city on his vintage motorcycle. His other interests include travelling, blockchain, and playing tennis.


Family Law Counsel, Practicing in Association

Matthew practices exclusively in Family Law. Matthew provides advice and represents his clients in all areas of family law, including divorce; parenting issues such as custody and access; financial issues related to the division of property and support; and child protection matters involved the children’s aid society. Matthew regularly attends court proceedings before the Superior Court of Justice in Toronto, Brampton and Newmarket, and before the Ontario Court of Justice in Toronto.


Intellectual Property Counsel, Practicing in Association

For 20 years, Edward A. Mancinelli has assisted entrepreneurs, innovators, content creators and health providers grow their businesses from the ground up. In both private practice and as in-house counsel, he has served his intellectual property (IP) clients in the areas of trademark, copyright, domain names, trade secret and patent matters, including the filing of applications, copyright and trademark clearance, IP enforcement and litigation matters, preparation of assignment and licensing transactions, IP acquisition and portfolio management and legal opinions. He also assists various health providers with health regulatory matters.

Prior to establishing his current practice, Edward worked as in-house IP counsel for a North American developer of early-stage technology and Internet companies. He is also active in the healthcare sector, volunteering for not-for-profit health organizations, boards and committees, and assisted to establish a publicly-funded interdisciplinary health clinic in the Greater Toronto Area.


Should you Incorporate a Federal or Provincial Corporation?

By Aaron Grinhaus and Scott Kastelic Should you Incorporate a Federal or Provincial Corporation? By: Aaron Grinhaus and Scott Kastelic Incorporation offers liability protection, continuity and tax benefits for people looking to start their own business. Once you have determined...

Working from Home during Covid-19: Are You Becoming an Independent Contractor?

By Aaron Grinhaus and Marisa Lau One of the most profound results of the Covid-19 pandemic has been the effect it has had on the composition of the workplace. Working remotely has forced employers to move to a task-based measure of...

Business Leases in the Time of Covid: What you Need to Know!

By Aaron Grinhaus and Alexander Di Giovanni Even with the “work from home revolution” caused by the Covid-19 pandemic, many businesses still need space for inventory, operations, retail facilities and for a plethora of other reasons. The Ontario Commercial Tenancies Act,...


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