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Working Hard for Every Victory

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We've earned our reputation

Cases

2,500+

In settlements & verdicts

$650M+

Years of experience

40

5-star ratings on Google

300+

Attorneys

23

Practice Areas

Our personal injury service offers legal representation for victims of accidents and negligence, including car accidents, slip and falls, medical malpractice, and product defects. We help clients recover compensation for medical bills, lost wages, pain, and suffering, ensuring they can focus on their recovery. This service operates on a contingency fee basis, meaning you only pay if we win your case, with the duration varying based on the complexity of each case. To book, contact us for a free consultation and bring any relevant medical records, accident reports, and insurance information.

Reviews

Geordie Tait

Thunder Bay

Mr. Tony Potestio is highly regarded as one marvelous lawyer. He's at his best when on my case and others. I don't know how he is able to do what it is he does, but I'm sure glad I have him on my side. The office is very clean and highly comfortable and efficient, and as for the rest of the people in office are very warm, friendly,and very welcoming I rate Tony Potestio, firm 5 out of 5 stars!!!!!!!

5 / 5

Sharon Groeneveld

Thunder Bay

Monica Zakhari recently represented me in an employment issue. She was very knowledgeable and readily available to speak with my husband and I whenever we needed to. I was happy with the outcome and would recommend her services to anyone who needs representation.

5 / 5

Lynn Parr

Toronto

Tony is beyond knowledgeable and makes you feel like your in good hands. " I got you..".... is the way he represents each issue. The best !

5 / 5

Our Services

01

Car Accident Claims

If you are a victim of a car accident, we offer dedicated representation to help you recover compensation for medical expenses, lost wages, and pain and suffering. In Ontario, motor vehicle accident claims comprise about 21% of general civil cases, and nearly 95% of such claims are settled before trial. Our data-driven approach ensures that your case is handled efficiently and that you receive fair, timely compensation.

02

Slip and Fall Claims

We assist individuals in claiming compensation for injuries resulting from slip-and-fall incidents caused by negligence. Understanding that personal injury claims often settle before trial, our team meticulously gathers evidence and reviews incident details to build a strong case on your behalf. Our aim is to secure compensation that covers your medical costs and lost income without unnecessary delay.

03

Municipal Governance

If you have been wrongfully terminated or unfairly dismissed, we are here to secure the justice and compensation you deserve. Drawing on precedents such as Wallace v. United Grain Growers and Honda v. Keays, our team carefully examines your employment documentation to ensure fair notice periods and proper severance are enforced. With data indicating that plaintiffs in employment disputes achieve favorable outcomes approximately 50–60% of the time, we leverage our expertise to maximize your chances of success.

05

Zoning and Land Use

Navigating the complexities of zoning regulations and land use planning in Ontario requires detailed knowledge and local insight. We offer tailored guidance to ensure that your projects comply with municipal and provincial laws. Aware that real estate and planning disputes form an important portion of commercial litigation, we work with your zoning plans and documents to protect your interests and facilitate a seamless development process.

07

Breach of Contract Disputes

We offer comprehensive legal representation in breach of contract disputes, whether it’s a failure to deliver goods, non-payment, or any violation of agreed terms. With commercial disputes representing about 14% of Ontario’s civil litigation, our approach is informed by landmark decisions—such as Bhasin v. Hrynew, which emphasizes the duty of honest performance. We review your contracts in detail during our consultation, ensuring that your rights are enforced and that you obtain the compensation or remedy you deserve.

08

Partnership Disputes

Disagreements between business partners can be both disruptive and costly. We specialize in resolving conflicts over operations, profit distribution, and even business dissolution. Recognizing that business disputes form a significant segment of Ontario’s litigation, we use our expertise to negotiate solutions that preserve your company’s continuity and financial well-being. Our process involves a thorough review of your partnership agreements and a tailored strategy to achieve a swift resolution.

10

Divorce Proceedings

We offer compassionate legal assistance for both contested and uncontested divorces, focusing on equitable division of assets and fair custody or support arrangements. Recognizing that family law matters constitute nearly one-third of civil cases in Ontario—and that most settle without a lengthy trial—we guide you through every step of the process. By carefully reviewing marriage certificates, financial records, and all relevant documentation, we strive to achieve an outcome that respects your rights and secures a stable future.

11

Adoption Services

Navigating the adoption process requires both legal precision and sensitivity. We provide comprehensive legal guidance to help you meet all requirements for a successful adoption. Our team is well-versed in the nuances of family law in Ontario and works diligently to ensure that every step of the process—from documentation to finalization—is handled with care and expertise.

12

Child Custody and Support

We represent clients in child custody and support disputes with a primary focus on the best interests of the child. Acknowledging that nearly 74% of family cases in Ontario settle within the first year, we strive for collaborative solutions that minimize conflict and ensure stability for your family. Our detailed review of custody agreements and support arrangements is designed to protect both your rights and the welfare of your child.

13

Business Formation

Starting a new business is an exciting venture, and we are here to help you lay a solid legal foundation. We advise on selecting the optimal legal structure and ensuring full regulatory compliance, tailoring our guidance to Ontario’s dynamic business landscape. Our consultation process is designed to understand your initial plans and ideas so that your new venture is built on secure legal ground.

14

Contract Drafting and Review

We draft and review business contracts to ensure that your interests are clearly defined and legally protected. In a jurisdiction where contract disputes account for a significant share of litigation, our careful, detail-oriented approach incorporates key legal precedents and the duty of honest performance. Our consultations ensure that every term is enforceable and aligned with your business goals.

15

Purchases and Sale of Business

In the realm of high-stakes business transactions, we provide comprehensive legal support for mergers, acquisitions, and sales. Ontario’s commercial landscape is marked by complex deals that demand thorough due diligence. We work closely with you to review every transaction detail, ensuring a smooth process and safeguarding your business interests throughout the entire deal.

16

Probate Administration

We specialize in managing probate administration and resolving disputes related to estate settlement. Recognizing that probate cases require careful attention to detail, we review trust documents and estate plans to ensure that the distribution of assets adheres to both legal standards and the decedent’s true intentions. Our goal is to streamline this often intricate process while safeguarding your interests.

17

Trust Disputes

Trust disputes can be particularly challenging, involving sensitive matters of beneficiary rights and trust administration. We work diligently to resolve these conflicts by reviewing all relevant trust documents and applying current legal standards. Our expertise in this area helps ensure that trust management reflects the intentions behind its creation and that your interests are fully protected.

18

Will Contests

When disputes arise over the validity of a will, we step in to ensure that assets are distributed in accordance with the true wishes of the deceased. In Ontario, where will contests can be both emotionally and legally complex, our team provides compassionate guidance and vigorous representation. We begin by examining the will and all related documentation, building a case that aims for a fair and just resolution.

Values

Potestio Law, founded by Tony Potestio, has over 40 years of experience providing quality, compassionate legal representation across Ontario. Our firm specializes in various practice areas including personal injury, corporate law, family law, and more, ensuring comprehensive and expert legal counsel for our clients. We are committed to upholding the values of integrity, respect, service, compassion and justice, making us a trusted choice for navigating the legal system​.

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Our 5-values Flag

Compassion

Integrity

Justice

Respect

Service

The Legal Team

Meet the Potestio Law team, dedicated attorneys committed to exceptional legal service. Our culture emphasizes integrity, respect, and collaboration. Led by Tony Potestio, with over 40 years of experience. We provide compassionate, personalized counsel to achieve the best outcomes for our clients. Connect with us to experience our unique approach to legal representation.

Tony Potestio

Tony Potestio

Managing Partner

Monica Zakhari

Monica Zakhari

Associate

Alia Khan

Alia Khan

Associate

Rod Johansen

Rod Johansen

Associate

Latest Cases
& Legal Insights

"At Potestio Law, we believe in justice and fair representation for all. Our commitment to integrity and legal excellence drives us to advocate tirelessly for our clients."

Tony Potestio, Founder of Potestio Law

40 Years of Trusted Legal Service

For over 40 years, Potestio Law has served Ontario with quality legal representation from offices in Thunder Bay, Vaughan, and Toronto, specializing in general litigation and various practice areas. We deeply value our community connections and actively participate in local events.

Community Involvement

Potestio Law is deeply committed to supporting the communities it serves, both locally in Thunder Bay and beyond. In Thunder Bay, the firm has actively contributed to the Minkiinakoos Children's Fund, a charity that addresses poverty among remote First Nations children by providing essential amenities. The firm has also supported the Dew Drop Inn, an organization that has been feeding the hungry for 39 years, by sponsoring a meal day that provided 200 take-home lunches. In addition, Potestio Law has taken part in local events such as the Camp Quality Trivia Night and the TELUS CUP 2019 Championship, further showcasing its dedication to community engagement. Extending its impact to Toronto, the firm participated in the "Toronto Lawyers Feed The Hungry" initiative in 2018, underscoring its commitment to making a positive difference across regions.

Experience Matters

Solving legal challenges in Ontario since 1986

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