About Ambrosino Law Group

Ambrosino Law Group works only in family law, and has for more than 20 years. It takes on every kind of family case, from negotiating and drafting a marriage contract to running a high-conflict court battle, and it represents clients wherever the matter is heard, whether that's a boardroom table or a courtroom.

Valois Ambrosino earned an LL.B. at Osgoode Hall Law School in 1994 and was called to the Ontario Bar in 1996. Val has extensive experience with high-conflict files: fiercely disputed custody and access cases, and complicated property and support claims. Val is also certified to act as a family law mediator and arbitrator.

Amy Voss came to the firm as an associate in 2018, the year Amy was called to the Bar of Ontario, with a Juris Doctor from Osgoode Hall Law School earned in 2017. Amy articled at a legal clinic in downtown Toronto that serves survivors of gender-based violence, and while there helped staff counsel with a Supreme Court of Canada intervention in a complex family case about international relocation. At Osgoode, Amy worked in the family law division of the Community and Legal Aid Services Programme (CLASP), assisting and representing family law litigants.

The lawyers settle clients' legal issues through negotiation, mediation, arbitration or litigation, depending on the case. The office is in Suite 1200 at 45 St. Clair Avenue West in Toronto, and consultations are confidential.

Practice areas

Parenting, support and changing orders

Ambrosino Law Group takes on custody and access claims brought by parents and by other family members, as well as mobility rights. Support work covers child and spousal support, including disputes over how income is determined. The firm resolves difficult custody and access disputes both in court and through alternative dispute resolution, and it handles applications to change existing court orders or agreements.

Our guide: How to Hire a Family Lawyer in Toronto

Property claims and domestic contracts

The firm advances equitable claims against property that come out of common-law relationships. It drafts, negotiates and executes cohabitation agreements, marriage contracts and separation agreements, and its lawyers can design a process meant to protect a contract's enforceability and make it less likely to be set aside later. It also has significant experience bringing and defending applications to vary or set aside a domestic contract.

Divorce

Ambrosino Law Group handles every part of a divorce, whether that means filing an uncontested one, reaching a settlement in mediation or getting a result from the court.

Appeals and contested hearings

Valois Ambrosino and Amy Voss have each appeared at every level of court in Ontario. For Val, that includes the Divisional Court and the Ontario Court of Appeal; for Amy, it includes the Court of Appeal.

Good to know

A person using a wheelchairWheelchair accessible

How Ambrosino Law Group works

Ambrosino Law Group takes a practical, common-sense approach to legal problems, on the understanding that clients come looking for simple answers rather than complicated ones. Its lawyers work with clients to set goals, weigh the risks, plan a strategy and reach a resolution, and the firm commits to keeping clients informed and advised at every stage. It aims to be approachable and available to clients, and favours efficiency and simplicity over complexity.

Reported cases

  • Ruffolo v. David, 2019 ONCA 385

    Valois P. Ambrosino and A. Voss acted for the appellant, who appealed a motion judge's three findings of contempt of access provisions in a court order. The Court of Appeal allowed the appeal and set the findings of contempt aside.

Decisions where the firm's lawyers appeared as counsel, from public court records. Past cases don't predict future results.

Milestones & recognition

  • In 2019 Law Times quoted Valois Ambrosino, senior counsel at the firm, on a Court of Appeal for Ontario decision holding that a mother shouldn't be found in contempt for not enforcing a son's visits with the father.
  • Valois Ambrosino has taught in the Law Society of Upper Canada's Bar Admission Course for law school graduates and has mentored articling students.
  • Val has written for publications on business and family law, and has been a member of bar groups including The Advocates' Society, the Canadian Bar Association and the Canadian Italian Advocates' Organization, as well as the Toronto, Peel and York Region law associations.

In the community

  • Valois Ambrosino has given family law talks at seminars and has spoken with high school law students about careers in law.
  • Amy Voss volunteered with the Pro Bono Students Canada Family Law Project and the Family Law Rotation Project, helping self-represented litigants prepare their court documents.

Affiliations & connections

  • ADR Institute of Ontario: The ADR Institute of Ontario has certified Valois Ambrosino to conduct family law arbitrations.
  • Conrad Grebel University College: Valois Ambrosino holds a certification from the college's Institute of Peace and Conflict Studies for undertaking family law arbitrations in Ontario.

This firm’s lawyers at a glance

Called to the bar
1996–2018 · median 19 years in practice 2 of 2 lawyers
Law schools
Osgoode Hall Law School (2) 2 of 2 lawyers

The neighbourhood

Ambrosino Law Group works from Suite 1200 at 45 St. Clair Avenue West, an office building put up in 1969 with an exterior of acid etched precast concrete and deeply set windows. The surrounding Yonge and St. Clair area holds many large corporate offices along with plenty of restaurants and shops, and the St. Clair subway station is in the area too, as are theatres and a major post office.

Frequently asked questions

Can Ambrosino Law Group take a family law appeal to the Court of Appeal for Ontario or the Supreme Court of Canada?
Ambrosino Law Group does appellate work. Valois Ambrosino is often hired as counsel on appeals raising complex issues in both of those courts.
Can Valois Ambrosino serve as the mediator or arbitrator in our family dispute?
Ambrosino Law Group's Valois Ambrosino holds certification as a family law mediator and arbitrator, and parties can retain Val to run the mediation or arbitration of a family dispute.
Does Ambrosino Law Group take on child protection cases involving the Children's Aid Society?
Ambrosino Law Group handles child protection matters, including cases that involve the Children's Aid Society.
Does Ambrosino Law Group deal with support enforcement issues involving the Family Responsibility Office?
Ambrosino Law Group handles enforcement issues, such as child or spousal support claims, including matters that involve the Family Responsibility Office.
Can Ambrosino Law Group give an opinion on a foreign marriage or divorce?
Ambrosino Law Group provides opinions on foreign marriages and divorces, and its work also extends to inter-jurisdictional and foreign family matters.
Will Ambrosino Law Group file my cohabitation agreement or marriage contract with the court?
Ambrosino Law Group can file your agreement with the court, which lets the court enforce the contract's terms.
Does Ambrosino Law Group handle freezing orders and exclusive occupancy of the matrimonial home?
Ambrosino Law Group's services cover temporary orders, among them restraining orders, freezing orders and orders granting exclusive occupancy of the matrimonial home.

Where to find them

45 St. Clair Ave. W., Suite 1200, Toronto, Ontario M4V 1K9 · 416-929-0233

Is this your firm?

Fix or remove this listing, or add a free listing badge

Something wrong with this listing? Tell us and we’ll hide it right away while we review your request, then correct it or take it down.

Add your free listing badge

Add the free LawOnline listing badge to your website. It tells visitors you’re listed in an independent Canadian lawyer directory and links back to this profile. Being listed isn’t a certification or an endorsement, and the badge doesn’t mean we’ve checked your credentials.

LawOnline.ca Canadian Lawyer Directory listing badge

Similar firms in City of Toronto

Featured

Conroy Scott LLP

5 lawyers · Est. 1958

Conroy Scott LLP is a northern Ontario law firm based in Sudbury, with additional offices in Chelmsford and Toronto. Founded in 1958, it's practised real estate, corporate and commercial law, civil litigation, wills a…

Civil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionConstruction LawConstruction LawBusiness & Corporate LawBusiness & Corporate LawFamily LawFamily Law

Steinbergs LLP

8 lawyers · Est. 1972

Steinbergs LLP is a Toronto law firm founded in 1972 by Irwin Steinberg, serving clients from small owner-operated businesses to large multi-national corporations. The firm practises business law, real estate, litigat…

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

Farrell & Boyle LLP is a Toronto law firm practicing employment law and family law. The firm represents clients in matters including wrongful dismissal, severance, discrimination, divorce and separation, custody and a…

Employment & Labour LawEmployment & Labour LawFamily LawFamily Law

This listing was generated by AI from public sources in October 2026. It may contain errors, and we can’t guarantee it’s accurate or complete. Before you rely on anything here, verify it on the firm’s own website. Verify licence status in the Law Society of Ontario directory ↗

How this data is compiled and checked · Correct or remove this listing