Grinhaus Law Firm
10 lawyers · City of Toronto, Metro Vancouver, Calgary Region, Québec
One of 2,345 law firms listed in Toronto, and one of 764 handling Business & Corporate Law.
About Grinhaus Law Firm
Grinhaus Law Firm is a small, business focused firm headquartered in Toronto, at 234 Eglinton Avenue East. The firm built its practice around corporate and commercial law, tax and estate structuring, and real estate, later adding a niche in blockchain, cryptocurrency, and Web3 advisory that set it apart from most Canadian firms doing this kind of work.
Founder Aaron Grinhaus holds an LL.B. from the University of Ottawa, a J.D. from Michigan State University College of Law, and an LL.M. in Tax from Osgoode Hall Law School. Grinhaus now works as an adjunct professor of international tax law at Osgoode and co directs its certificate program in Web3, Metaverse, and Blockchain Law. In 2019 Grinhaus wrote a LexisNexis textbook on smart contracts and blockchain law, and in January 2022 the firm opened a virtual office in the Decentraland metaverse, described on the firm's site as a first for a Canadian law firm.
For family law, commercial disputes, intellectual property, and some matters outside Ontario, the firm works alongside independent lawyers in British Columbia, Alberta, and Quebec who run their own practices under the NorthShield Legal Group name rather than as Grinhaus branch offices.
Practice areas
Milestones & recognition
- Grinhaus Law Firm was established in Toronto as a small business and tax practice.
- In January 2022 the firm opened a virtual office in the Decentraland metaverse, which its site describes as the first such office for a Canadian law firm.
- Founder Aaron Grinhaus wrote A Practical Guide to Smart Contracts and Blockchain Law in Canada, published by LexisNexis in 2019, which the firm's site describes as the world's first legal textbook on the subject.
- Aaron Grinhaus co directs Osgoode Hall Law School's Certificate Program in Web3, Metaverse and Blockchain Law and teaches international tax law there as an adjunct professor.
- Aaron Grinhaus has sat on the Governing Council of the Ontario Bar Association since 2007.
In the community
- Aaron Grinhaus has served as General Counsel to the Mississauga Real Estate Board since 2017.
- Aaron Grinhaus is a founding member and executive director of the Metaverse Bar Association.
- The firm runs a student articling program that gives law students hands on experience with corporate, estate, and real estate work, with the chance of an articling offer at the end of the term.
Good to know
Wheelchair accessibleLawyers 10
Aaron Grinhaus
Founder
Business & Corporate LawTax Law
Edward A. Mancinelli
Intellectual Property Counsel, Practicing in Association
Intellectual PropertyHealth Law
Jason Lee
Commercial Litigation Counsel, Practicing in Association
Civil Litigation & Dispute Resolution
Jeffrey Pariag
Employment Law Counsel, Practicing in Association
Employment & Labour LawLandlord & Tenant
Kathleen Danganan
Associate Lawyer
Business & Corporate LawWills, Estates & Trusts
Kenyah Coombs
Real Estate Counsel, Practicing in Association
Real Estate Law
Matthew Pike
Family Law Counsel, Practicing in Association
Family Law
Scott Nicol
Alberta Counsel, Practicing in Association
Business & Corporate LawCivil Litigation & Dispute Resolution
Steve Parr
British Columbia Counsel, Practicing in Association
Wills, Estates & TrustsBusiness & Corporate Law
Yves Picard
Quebec Counsel, Practicing in Association
Business & Corporate LawEmployment & Labour Law
This firm’s lawyers at a glance
- Law schools
- Osgoode Hall Law School (2), Laval University, University of Alberta, University of Ottawa, University of Victoria 6 of 10 lawyers
Who handles what
Offices 4
The neighbourhood
Grinhaus Law Firm's Toronto office sits in a compact, eight storey office building at 234 Eglinton Avenue East, in the Sherwood Park area of Midtown Toronto, just east of Mount Pleasant Road. It's a modest, low rise setting for a firm whose client work reaches all the way to a virtual office in the metaverse, and that contrast says something about how the firm operates: a small in person Toronto base paired with a client base that has grown well beyond it.
For work outside Ontario, the firm doesn't open its own branches. Instead it coordinates with independent lawyers in Vancouver, Calgary, Quebec City, and Montreal who practice under the NorthShield Legal Group name, so clients in those cities deal with local, separately run firms rather than a Grinhaus satellite office.
Frequently asked questions
- Does Grinhaus Law Firm handle cryptocurrency and Web3 legal matters?
- Yes. The firm has advised on blockchain, cryptocurrency, and Web3 issues for years, and founder Aaron Grinhaus wrote a 2019 LexisNexis textbook on smart contracts and blockchain law. In January 2022 the firm opened what its site describes as the first Canadian law firm office in the Decentraland metaverse.
- Can Grinhaus Law Firm help me buy a home or investment property with cryptocurrency?
- The firm's real estate practice includes structuring property purchases funded with cryptocurrency, alongside standard residential and commercial real estate transactions and the tax and estate planning that often goes with them.
- I want to incorporate a business in Ontario. Can Grinhaus Law Firm help?
- Incorporation and business structuring for tax efficiency are core parts of the firm's corporate practice. It also does dedicated work for regulated professionals, such as helping physicians, veterinarians, and accountants set up professional corporations.
- Does Grinhaus Law Firm prepare wills and powers of attorney?
- Yes, the Toronto team prepares wills, powers of attorney, and both simple and offshore trusts, and can guide an estate through probate. Estate planning is also folded into other work, such as real estate purchases and business succession.
- Does Grinhaus Law Firm handle family law or intellectual property matters?
- The firm's site describes family law, intellectual property, and commercial dispute services, though unlike its corporate, tax, and real estate work these areas aren't tied to named in house lawyers on the site.
- Where is Grinhaus Law Firm located, and does it have offices outside Ontario?
- The firm's own office is in Toronto, on Eglinton Avenue East near Mount Pleasant Road. It also works with independent, affiliated lawyers in British Columbia, Alberta, and Quebec who run their own practices under the NorthShield Legal Group name.
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Wills, Estates & TrustsListing compiled from the firm’s public website in August 2026. Verify licence status in the Law Society of Ontario directory ↗