Sarah Mumtaz Law Offices
Automatically compiled listing. Details may contain errors.1 lawyer · City of Toronto, Waterloo Region
One of 2,276 law firms listed in Toronto, and one of 423 handling Family Law.
About Sarah Mumtaz Law Offices
Estates are at the heart of Sarah Mumtaz Law Offices. The firm does estate planning, drafting wills, setting up trusts and preparing powers of attorney, and it takes on estate litigation when an administration runs into trouble. It also handles family matters like uncontested divorces, separation agreements and cohabitation agreements, plus some corporate law. Clients come from Toronto, Etobicoke, Kitchener-Waterloo and Guelph.
Sarah Mumtaz is the firm's founder and principal lawyer, with more than nine years of experience practising law. Before opening the firm in 2023, Sarah Mumtaz spent about six years at a Cambridge law firm and then worked at a Bay Street firm in Toronto. A mentor, Robert McMaster, taught Sarah Mumtaz much of what goes into running a business and was the inspiration for starting an independent practice. Sarah Mumtaz earned a J.D. from the University of Windsor in 2016.
Two associate lawyers work alongside the founder. Rida Raza was called to the bar in 2026. Blaine Speck was called to the Ontario bar in 2025, holds a J.D. from Robson Hall at the University of Manitoba, and built litigation experience with a small Winnipeg team before joining.
With offices in Toronto, Etobicoke and Waterloo, clients don't have to travel far to meet with the firm. The practice operates as Sarah Mumtaz Professional Corporation, and its services are offered in Ontario unless otherwise indicated.
Practice areas
Domestic contracts and family court
The firm prepares cohabitation and prenuptial agreements, marriage contracts and separation agreements, each tailored to the client. When a separation ends up in court, it represents clients there, advocating on property division, equalization of net family property, and spousal and child support.
Our guide: How to Hire a Family Lawyer in Toronto
Estate administration
The firm advises executors, trustees and beneficiaries on issues that come up while an estate is being administered. For estate trustees, it helps get the certificate of appointment, works out probate fees, explains what the role involves and supports the trustee through the duties that follow.
Estate litigation
On the contentious side, the firm's estate litigation list includes will challenges and defences, trust and capacity questions, undue influence and passing of accounts.
Incorporations and corporate upkeep
When it incorporates a business, the firm coordinates with tax advisors, accountants and Ontario's Ministry of Public and Business Service Delivery so the required government filings get made. It also helps maintain corporate records, sets up ownership arrangements and guides companies through changes like a rebrand or a wind-up.
Civil and administrative matters
Beyond those areas, the firm handles a range of civil and administrative matters, including resolving coverage and professional disputes, representing individuals before tribunals such as the Consent and Capacity Board, and authenticating or legalizing documents for international use.
Our guide: How to Get a Divorce in Ontario
Good to know
Accessible parkingHow Sarah Mumtaz Law Offices works
Family clients get representation shaped around them, and since affordability counts, the firm commits to keeping its handling of each family matter flexible while staying accessible and in regular contact. Across the practice, clients get direct access to their lawyer, remote and virtual meeting options, and flexible appointment times.
Sarah Mumtaz aims for a more compassionate, human way of practising law, and the firm uses virtual meetings and virtual signings to make certain processes easier.
Milestones & recognition
- October 2023: the Greater Kitchener-Waterloo Chamber of Commerce profiled Sarah Mumtaz, partner and founder of Sarah Mumtaz Law Offices.
- By 2023, Sarah Mumtaz had won the Readers Choice Awards in Waterloo Region a few times.
- As of 2023, Sarah Mumtaz was a member of the Ontario Lawyers Association, the Waterloo Law Association and the Women's Law Association of Ontario, and a student member of STEP (Trust and Estate Practitioners).
- Associate Rida Raza holds a dual J.D. in Canadian and American law from the University of Windsor and the University of Detroit Mercy, and received the Book Award in Litigation Technology there.
In the community
- In June 2026, Sarah Mumtaz published a case comment on Madhani v. Fast, 2025 ONSC 4100, which looks at how hard it is to prove intention when a court is asked to approve an unsigned draft will after the testator has died.
- A March 2026 article written by Rida Raza and Sarah Mumtaz covers intellectual property in estate planning, including the interest an estate may hold in a deceased person's personality.
Affiliations & connections
- Pro Bono Ontario: Sarah Mumtaz volunteers with Pro Bono Ontario, providing legal help to vulnerable people who need it.
Who handles what
Offices 3
The neighbourhood
The head office is on the 16th floor of 401 Bay Street in Toronto, the Simpson Tower. The 33-storey building was finished in 1968 by John B. Parkin Associates and Bregman & Hamann as the headquarters of the Simpsons department store company. It's home to the Arcadian Court event venue and links to the Eaton Centre across Queen Street.
In Etobicoke, the office is on the 10th floor of 10 Four Seasons Place, a high-rise in the west of Etobicoke's suburbs that's a short drive from the airport and the city centre.
The Waterloo office is in unit 4 on the first floor of 180 Northfield Drive West. Sarah Mumtaz was born and raised in Waterloo, back when it was a small town where everyone knew each other, before it grew into a big city.
Frequently asked questions
- If I inherit a rented property, has Sarah Mumtaz Law Offices written about what happens to the tenancy?
- Yes. In February 2026, Sarah Mumtaz and Vy Tran wrote an article for the firm about inheriting a property when the landlord has died. Under the Residential Tenancies Act, a landlord's death doesn't end an existing tenancy.
- Does Sarah Mumtaz Law Offices arrange forensic writing analysis in estate matters?
- Yes. Contracting forensic writing analysis is one of the firm's estate administration services. A June 2023 firm article on fraudulent wills points to one way to reduce the risk: a will drafted, properly executed and stored by an estate lawyer, so the original can't be challenged on the basis of forgery or alteration.
- Will the firm deal with the Office of the Children's Lawyer while an estate is being administered?
- Yes. Liaising with the Office of the Children's Lawyer is part of the firm's estate administration work, as is locating missing and unascertained beneficiaries.
- Does the family practice at Sarah Mumtaz Law Offices prepare travel consent forms?
- Yes. Travel consent forms and notary services are part of the family law practice, alongside simple, uncontested and contested divorce applications.
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Real Estate LawBusiness & Corporate LawWills, Estates & TrustsThis 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 ↗
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