Tierney Stauffer

What Tierney Stauffer does

Tierney Stauffer LLP is an Ontario-based full-service law firm founded in 1982 and headquartered in Ottawa, with a 51-100 employee team operating across four offices in Ottawa, Cornwall, Kingston, and North Bay. Its practice spans personal injury, civil litigation, business law, employment law, family law, residential and commercial real estate, wills/estates/trusts, administrative law, alternative dispute resolution, construction law, and commercial landlord-tenant matters, serving a mixed client base of individuals and businesses across eastern Ontario. The firm was co-founded by Stephen Tierney and Ian Stauffer (both now retired) and is currently led by Managing Partner Susan D. Mitchell.

Revenue is generated through a combination of hourly billing, block fees, contingency fees (capped at 30%), and retainers, with the mix varying by practice area. Go-to-market is sales-led and supplemented by client referrals, community involvement, and organic search visibility — a conventional profile for an established regional law firm with no disclosed technology platform or external funding. The firm has earned peer recognition including "Best Law Firms Canada" status since 2025, UN Women WEP signatory status, and individual "Best Lawyer of the Year" recognition for Managing Partner Susan Mitchell.

The firm's strategic posture is that of a privately held regional incumbent: organic, multi-office, multi-disciplinary, with stable headcount, planned leadership succession, and ongoing reputational investment rather than acquisitive or technology-driven expansion. No AI/ML capabilities, technology platform ownership, or M&A activity is disclosed.

Name

Tierney Stauffer

Legal name

Tierney Stauffer LLP

Website

https://tslawyers.ca

Company type

Private

Founded year

1982

Operating status

Operating

Headcount range

51–100 employees

Short description

Tierney Stauffer LLP is an Ottawa-headquartered full-service Ontario law firm founded in 1982, serving individuals and businesses across four eastern Ontario offices through litigation, business, real estate, family, and estate law practices.

Ownership category

akta.pro rank

Headquarters

HQ city

Ottawa

HQ country

Canada

HQ region

North America

Offices4 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Revenue model

1. Hourly Billing: Time spent by lawyers, articling students, and law clerks tracked and recorded. Billing includes conferences, telephone calls, correspondence, emails, and travel time.
2. Block Fees: Fixed fees for routine work such as real estate transactions, routine wills, incorporations, and similar matters.
3. Contingency Fee Arrangements: Fees consisting of a percentage of the amount recovered. Maximum percentage rate is 30% of total recovery, though it may be less depending on the nature of the case. Used in civil litigation cases such as personal injury, wrongful death, and medical and professional malpractice.
4. Retainers: Deposit placed in trust account prior to beginning work, dependent on file type. Applied following client review and approval of statement of account.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels5 records

Core offering

Tierney Stauffer LLP is a full-service Ottawa law firm founded in 1982 that provides legal representation across personal injury, business law, civil litigation, employment law, family law, wills and estates, real estate (residential and commercial), administrative law, alternative dispute resolution, construction law, and commercial landlord and tenant matters. The firm serves both individual clients (e.g., accident victims, families, homebuyers) and corporate clients (e.g., businesses, financial institutions, employers) through four offices in Eastern Ontario.

Product overview

Tierney Stauffer LLP is a full-service law firm founded in 1982, offering a comprehensive portfolio of legal services across multiple practice areas. The firm operates as a unified legal services platform with core service lines including Business Law, Civil Litigation, Personal Injury, Employment Law, Family Law, Real Estate Law (both residential and commercial), Wills and Estates, and Administrative Law. The practice is structured around specialized teams that work collaboratively on matters intersecting multiple legal areas, such as construction disputes, commercial leasing, and estate litigation. The firm also supports the legal community through an annual Articling Student Program and a Lawyer Referral Program for peer-to-peer referrals. Tierney Stauffer serves clients across four locations in Ontario (Ottawa, Cornwall, Kingston, and North Bay) and employs contingency fee arrangements for personal injury matters with a maximum rate of 30%.

Differentiator

Problem solved

Functional benefit

Products and services

• Personal Injury Practice Comprehensive personal injury representation for individuals who have suffered injuries due to accidents, negligence, or misconduct, including motor vehicle accidents, medical malpractice, slip and falls, wrongful death, premises liability, product liability, nursing home negligence, dog bites, historic sexual abuse, professional negligence, and denial of benefits cases.
• Business Law Services Corporate and commercial legal services for family-owned businesses, corporations, financial institutions, startups, and entrepreneurs, including acquisitions, financing, franchising, incorporations, shareholder agreements, business succession planning, and commercial disputes.
• Civil Litigation Trial and appellate advocacy in all court levels, representing clients in complex disputes including personal injury, commercial, and contractual matters.
• Employment Law Services Representation for both employers and employees on wrongful dismissal, constructive dismissal, employment contracts, human rights, workplace harassment, employment standards compliance, and non-competition agreements.
• Family Law Services Legal services for individuals and families navigating separation, divorce, child custody, child and spousal support, property division, prenuptial agreements, and family dispute resolution through negotiation and litigation.
• Wills, Estates, Trusts and Elder Law Estate planning, will drafting, powers of attorney, estate administration, probate, trust planning, estate litigation, and elder law services for individuals planning their estates, families administering estates, and clients facing estate disputes.
• Residential Real Estate Law Residential property transactions including purchases, sales, refinances, estate conveyancing, and lease-to-own arrangements, serving first-time homebuyers, families, and investors.
• Commercial Real Estate Law Commercial property transactions for businesses including purchases, sales, mortgage loans, leasing, development, and title insurance.
• Administrative Law Services Legal representation before administrative tribunals, boards, agencies, and commissions at municipal, provincial, and federal levels, including judicial review proceedings and statutory appeals.
• Alternative Dispute Resolution (ADR) Mediation and arbitration services providing cost-effective, confidential dispute resolution alternatives to traditional litigation.
• Construction Law Legal services for construction industry stakeholders including contract formulation, construction liens, ODACC adjudication, and dispute resolution.
• Commercial Landlord and Tenant Commercial lease drafting, review, and dispute resolution for retail, office, industrial, and ground leases.
• Motor Vehicle Accident Claims Representation for car, truck, ATV, motorcycle, bicycle, pedestrian, snowmobile, boating, and bus/OC Transpo accidents, including distracted driving cases.
• Medical Malpractice Claims against medical professionals including hospital malpractice, misdiagnosis, and surgical errors.

Quantifiable outcome

• Ranked in Best Law Firms Canada since 2025
• +2 more outcomes

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators7 records

Recent moves8 records

Expansion highlights4 records

Broad incumbents

• McCarthy Tétrault LLP: Leading Canadian national law firm with full-service offerings including business law, litigation, real estate, and personal injury. Overlapping practice areas but substantially larger scale and national reach.
• Borden Ladner Gervais LLP: Largest full-service Canadian law firm with national footprint. Comparable in practice scope (personal injury, business law, real estate, litigation) but operates at significantly greater scale across Canada.
• Cassels Brock & Blackwell LLP: National Canadian full-service law firm with comparable practice areas including business law, litigation, real estate, and employment. Larger scale but overlapping full-service model.

Direct peers

• Fogler, Rubinoff LLP: Ontario-based full-service law firm with similar practice areas including business law, real estate, litigation, and employment law. Comparable in mid-market full-service positioning.
• Kelly Santini LLP: Ottawa-based full-service law firm offering personal injury, civil litigation, real estate, family law, and business law services. Comparable in size and regional scope.
• Nelligan O'Brien Payne LLP: Ottawa-based full-service law firm with comparable headcount and similar practice area mix including personal injury, business law, employment, family law, and real estate. Directly comparable as a similarly-sized Ottawa competitor.
• Mann Lawyers: Ottawa-based full-service law firm with similar practice areas including personal injury, family law, business law, and real estate. Directly comparable regional competitor with similar mid-market positioning.
• Emond Harnden LLP: Ottawa-headquartered law firm focused on employment law and labour relations, serving employers across Ontario. Comparable in size and regional focus to the subject firm's employment practice.
• Aird & Berlis LLP: Toronto-based full-service law firm with business law, real estate, litigation, and employment practices. Comparable in practice scope though larger in scale and broader geographic reach.
• Perley-Robertson, Hill & McDougall LLP/sadvinas: Long-established Ottawa law firm with full-service offerings including business law, litigation, real estate, and personal injury. Comparable in size, longevity, and practice scope.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/TSLawyers
• Facebookfacebook.com/tierneystauffer
• LinkedInlinkedin.com/company/tierney-stauffer

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Tierney Stauffer