Ontario directory

Business & Corporate Law Firms in Essex County (Windsor), Ontario

35 law firms.

What does a business lawyer in Windsor-Essex do?

A business lawyer in Windsor-Essex helps companies form, run, and change hands within the rules of Ontario and federal law. The everyday work is incorporating a company, drafting shareholder agreements, negotiating commercial contracts, and handling the sale or purchase of a business. A new company registers either federally through Corporations Canada or provincially through the Ontario Business Registry. If a commercial dispute can't be settled, it's heard in the Superior Court of Justice, which sits at the Windsor courthouse at 245 Windsor Avenue.

The client base here reflects the local economy. Windsor and Tecumseh carry a deep automotive and manufacturing base, while Leamington's greenhouse sector keeps agri-business files steady.

Federal or Ontario: how do you incorporate a business?

You can incorporate a company two ways, and the choice matters. Federal incorporation under the Canada Business Corporations Act, filed through Corporations Canada, protects your corporate name across the country and suits a business that operates in more than one province. Provincial incorporation under Ontario's Business Corporations Act, filed through the Ontario Business Registry, is often simpler for a company that stays in Ontario.

Either route asks you to sort out directors, share structure, and a registered address before you file. A lawyer will also raise the questions a template skips: how shares are split among founders, what happens if someone wants out, and how profits get paid. Those answers shape the incorporation, so settle them early.

What do shareholder agreements and business sales involve?

A shareholder agreement sets the rules between owners: who decides what, how shares can be sold, and how disputes get resolved before they reach court. For a family business in Essex or Amherstburg, it keeps a disagreement from becoming a lawsuit.

Buying or selling a business runs on the same care. The deal turns on due diligence, a clear purchase agreement, and terms that spell out what's included, from equipment to customer lists to contracts. Windsor-Essex sits across the river from Detroit, and cross-border trade is common, but the Ontario side of any deal still runs on Ontario and Canadian law. A local lawyer keeps the contract enforceable here.

How do you choose a business law firm in Windsor-Essex?

Start with a firm that has handled your kind of work, whether that's a straightforward incorporation, a shareholder dispute, or the sale of a going concern. Ask who will actually do the drafting, how they bill, and whether they know the local market from Windsor and Tecumseh out to Leamington. A firm that explains the trade-offs in plain terms beats one that only sends documents.

You can confirm any lawyer's standing on the Law Society of Ontario directory. Browse the business & corporate law firms in Windsor-Essex below.

Andary Carnevale Karry & Laba LLP is a full-service law firm with offices in Windsor and Kingsville, Ontario. It handles family law, civil litigation, criminal defense, real estate, corporate and commercial law, wills…

Family LawFamily LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionReal Estate LawReal Estate LawCriminal DefenceCriminal Defence

B Daniels Law

1 lawyer

B Daniels Law is a boutique law firm based in Amherstburg, Ontario, founded by Blessing T. Daniels. It practises business and corporate law, contract law, residential real estate, general litigation, family law, and e…

Business & Corporate LawBusiness & Corporate LawReal Estate LawReal Estate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionFamily LawFamily Law

Beluli Giannotti LLP is a boutique law firm in Windsor, Ontario, practising business and commercial law, injury law, real estate, litigation, wills and powers of attorney, wrongful dismissal and employment law, and en…

Business & Corporate LawBusiness & Corporate LawPersonal InjuryPersonal InjuryReal Estate LawReal Estate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute Resolution

Brian D. Collins

1 lawyer

Brian D. Collins is a sole-practitioner law firm in Leamington, Ontario, run by Brian D. Collins, a barrister and solicitor. The practice focuses on real estate, wills and estates, and corporate and commercial law. Co…

Real Estate LawReal Estate LawWills, Estates & TrustsWills, Estates & TrustsBusiness & Corporate LawBusiness & Corporate Law

Cheifetz Business Law is a Windsor, Ontario firm providing corporate, commercial, and tax legal services, run by a father-and-son team with more than five decades of combined experience. The firm's practice covers cor…

Business & Corporate LawBusiness & Corporate LawTax LawTax LawReal Estate LawReal Estate LawWills, Estates & TrustsWills, Estates & Trusts

Clark Law Office

1 lawyer · Est. 2005

Clark Law is a general practice law firm in Leamington, Ontario, led by sole practitioner Dean H. Clark. The firm serves residential, commercial, and industrial clients across Windsor-Essex County in wills, estates, f…

Wills, Estates & TrustsWills, Estates & TrustsFamily LawFamily LawReal Estate LawReal Estate LawCriminal DefenceCriminal Defence

Cohen Highley LLP

34 lawyers · Est. 1974

Cohen Highley LLP is a full-service law firm founded in London, Ontario in 1974. It practises across family law, personal injury, business law, real estate, wills and estates, employment, multi-residential housing and…

Family LawFamily LawPersonal InjuryPersonal InjuryBusiness & Corporate LawBusiness & Corporate LawReal Estate LawReal Estate Law

Cole Carosella is an Essex County, Ontario lawyer called to the Bar of Ontario in 2025, practising wills and estates, powers of attorney, business law, family law, civil litigation and small claims, tribunals and admi…

Wills, Estates & TrustsWills, Estates & TrustsBusiness & Corporate LawBusiness & Corporate LawFamily LawFamily LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute Resolution

Diamond & Diamond Lawyers LLP is a national personal injury firm headquartered in Toronto, with offices across Ontario, Alberta, British Columbia and Nova Scotia. Its main focus is personal injury and accident claims,…

Personal InjuryPersonal InjuryWills, Estates & TrustsWills, Estates & TrustsReal Estate LawReal Estate LawBusiness & Corporate LawBusiness & Corporate Law

Dickinson Wright

72 lawyers · Est. 1878

Dickinson Wright is a large North American law firm with more than 550 lawyers across roughly 40 practice areas, headquartered in Detroit and tracing its history to 1878. It has a Toronto office at Commerce Court West…

Business & Corporate LawBusiness & Corporate LawReal Estate LawReal Estate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionBankruptcy & InsolvencyBankruptcy & Insolvency

Elizabeth Papp Law Office

2 lawyers · Est. 1996

Elizabeth Papp Law Office is a law firm in LaSalle, Ontario, founded in 1996 by Elizabeth Papp. Its lawyers serve as barristers, solicitors, and notaries public practising estate law, real estate law, corporate law, a…

Real Estate LawReal Estate LawBusiness & Corporate LawBusiness & Corporate LawFamily LawFamily Law

GK Law Firm Professional Corporation is a full-service law firm based in Windsor, Ontario, with a second office in Lansing, Michigan. Founded by George Kyriazakos, who is licensed to practice in Ontario, Michigan, and…

Real Estate LawReal Estate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionWills, Estates & TrustsWills, Estates & TrustsBusiness & Corporate LawBusiness & Corporate Law

Holden & Moorhouse Professional Corporation is a Windsor, Ontario law firm established in 1999, previously known as Holden & Moorhouse Law Firm. It practises business law, real estate law, wills, powers of attorney an…

Business & Corporate LawBusiness & Corporate LawReal Estate LawReal Estate LawWills, Estates & TrustsWills, Estates & TrustsEmployment & Labour LawEmployment & Labour Law

John Paul Corrent

1 lawyer · Est. 1979

This site profiles John Paul Corrent, a Windsor, Ontario lawyer who founded Corrent & Macri LLP in 1979 and now practices with Mousseau DeLuca McPherson Prince LLP. He focuses on wills and estates, real estate, busine…

Wills, Estates & TrustsWills, Estates & TrustsReal Estate LawReal Estate LawBusiness & Corporate LawBusiness & Corporate LawAdministrative & Regulatory LawAdministrative & Regulatory Law

Karry & Laba

3 lawyers

Karry & Laba is a Windsor-Essex law firm with more than 40 years of combined experience, practising employment law, family law, estate planning, real estate law, and corporate and commercial law. Its lawyers are Micha…

Employment & Labour LawEmployment & Labour LawFamily LawFamily LawWills, Estates & TrustsWills, Estates & TrustsReal Estate LawReal Estate Law

Kirwin Partners LLP

14 lawyers

Kirwin Partners LLP is a Windsor, Ontario law firm with more than 30 years in the community and a combined 265+ years of legal experience among its lawyers. The firm practices corporate law, real estate law, civil lit…

Business & Corporate LawBusiness & Corporate LawReal Estate LawReal Estate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionFamily LawFamily Law

Mariana Samaan Law Firm is a Windsor, Ontario law firm serving Windsor, Essex, Tecumseh, LaSalle, and other nearby communities. It focuses on wills and estate law, real estate law, contract law, and corporate law for …

Real Estate LawReal Estate LawWills, Estates & TrustsWills, Estates & TrustsBusiness & Corporate LawBusiness & Corporate Law

Mariotti Law Group

Est. 1965

Mariotti Law Group is a Windsor, Ontario firm founded in 1965 by Anthony 'Tony' Mariotti. It practises wills and estate planning, estate administration, mortgage enforcement, private lending, real estate transactions …

Wills, Estates & TrustsWills, Estates & TrustsBusiness & Corporate LawBusiness & Corporate Law

McGregor, Sims, Schmoranz, Hart Professional Corporation is a small-town law firm in Kingsville, Ontario, serving Kingsville and Essex County since 1968. It practises real estate, wills and estates, business and corpo…

Real Estate LawReal Estate LawWills, Estates & TrustsWills, Estates & TrustsBusiness & Corporate LawBusiness & Corporate LawFamily LawFamily Law

McTague Law Firm LLP

21 lawyers · Est. 1920

McTague Law Firm LLP is a full-service law firm in Windsor, Ontario that has served Windsor-Essex since 1920. It practises corporate and commercial law, commercial and civil litigation, employment and labour law, esta…

Business & Corporate LawBusiness & Corporate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionEmployment & Labour LawEmployment & Labour LawWills, Estates & TrustsWills, Estates & Trusts

Miller Canfield Canada

8 lawyers · Est. 1852

Miller Canfield Canada is the Windsor, Ontario office of the Michigan-based firm Miller Canfield, which became the first US-based firm to open a Canadian office in 2002 when it merged with Windsor's Wilson Walker Hoch…

Business & Corporate LawBusiness & Corporate LawEmployment & Labour LawEmployment & Labour LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionWills, Estates & TrustsWills, Estates & Trusts

Mousseau, DeLuca, McPherson, Prince LLP

11 lawyers · Est. 2001

Mousseau, DeLuca, McPherson, Prince LLP is a full-service law firm in Windsor, Ontario, with a second office in Belle River. It traces its roots to two predecessor firms, one founded in 1961 by Max N. Mousseau and the…

Business & Corporate LawBusiness & Corporate LawWills, Estates & TrustsWills, Estates & TrustsFamily LawFamily LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute Resolution

Nanda & Associate Lawyers

16 lawyers · Est. 2003

Nanda & Associate Lawyers is a full-service firm founded in 2003, with its main office in Mississauga and additional locations in Toronto and Windsor, Ontario. Its lawyers cover real estate, immigration, family, perso…

Real Estate LawReal Estate LawImmigration LawImmigration LawFamily LawFamily LawPersonal InjuryPersonal Injury

Ohler Wydrzynski Barristers & Solicitors is a Windsor, Ontario law firm practising business and corporate law, civil litigation, wills and estates, and real estate law.

Business & Corporate LawBusiness & Corporate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionWills, Estates & TrustsWills, Estates & TrustsReal Estate LawReal Estate Law