About Greatrix Law

Greatrix Law is a family law firm in Guelph, Ontario. Its work centres on separation and divorce and everything that comes with them: parenting arrangements, child and spousal support, dividing property, and sorting out the matrimonial home. The firm also drafts marriage and cohabitation agreements, prepares wills, estates, and trusts documents, and offers notarizing and commissioning. Its principal, Sarah A. Greatrix, earned an honours psychology degree from the University of Waterloo and a law degree from the University of Windsor in 2007, and the firm describes nearly twenty years of experience in the field.

The practice leans toward settling matters outside court where it can, through collaborative family law, negotiation, and mediation. When a file needs it, the firm takes cases to the Ontario Court of Justice and the Superior Court of Justice. Alongside the principal, an associate lawyer and a senior law clerk with more than two decades in family law make up a small team, so clients tend to work with more than one person. Greatrix Law lists a set consultation fee and meets clients both in person and virtually.

Milestones & recognition

  • The founder, Sarah A. Greatrix, completed an honours Bachelor of Arts in psychology at the University of Waterloo, with a focus on sexuality, marriage, and family issues, before earning a law degree from the University of Windsor in 2007.
  • At law school the founder received the Joseph Micallef Memorial Award for the highest standing in family law and the Scotiabank Award for the highest standing in wills and succession law.
  • The team includes an associate lawyer who completed a law degree at Windsor in 2024, and a senior law clerk with more than twenty years in family law.

Good to know

A person using a wheelchairWheelchair accessibleA calendar with a checkmark beside a clockBy appointment

This firm’s lawyers at a glance

Law schools
University of Windsor (2), Osgoode Hall Law School 3 of 3 lawyers
Languages on the roster
English, Portuguese, Spanish

The neighbourhood

Greatrix Law works out of Woodlawn Park Plaza at 291 Woodlawn Road West, in Guelph's north end. Woodlawn is one of the city's east to west arterials, and the plaza sits among the shops and service offices strung along it, with parking on site. A short way toward Woolwich Street is Riverside Park, an 80 acre run of green along the Speed River that Guelph residents know for its 1919 carousel and its large floral clock. The spot is easy to reach from Highway 6 and the rest of the north end, which suits a practice that takes clients from across Guelph and Wellington County and out toward Cambridge, Kitchener, Waterloo, and Milton.

Frequently asked questions

Does Greatrix Law handle divorce and separation?
Yes. The firm's main focus is family law, which covers separation, divorce, parenting arrangements, child and spousal support, dividing property, and the matrimonial home.
Can the firm help settle a family matter without going to court?
Often, yes. Greatrix Law works through collaborative family law, negotiation, and mediation to reach a settlement where it can, and it goes to court when a file calls for it.
What does a consultation with Greatrix Law cost?
The firm lists a one-hour consultation for $300, including HST. It's best to bring your financial documents so the time is used well.
Can I meet with the firm virtually?
Yes. Greatrix Law offers both in-person and virtual appointments. Regular hours are Monday to Friday, 9 a.m. to 5 p.m., with evenings and weekends available by appointment.
Besides family law, what else does Greatrix Law do?
The firm prepares wills, estates, and trusts documents, drafts marriage and cohabitation agreements, and provides notarizing and commissioning services.
Which communities does Greatrix Law serve?
The firm is based in Guelph and takes clients from across Wellington County and nearby communities, including Fergus, Elora, Rockwood, Cambridge, Kitchener, Waterloo, and Milton.

Where to find them

291 Woodlawn Road West, Unit 10B, Guelph, Ontario, N1H 7L6 · 519-829-4853

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Listing compiled from the firm’s public website in July 2026. Verify licence status in the Law Society of Ontario directory ↗