Top 5 Mistakes That Can Ruin Your Personal Injury Case in Ontario

This is the most common and most devastating mistake. We cannot overstate its importance: if you delay seeking medical attention after an accident, you are handing the insurance company their strongest argument against your claim. Every day between the accident and your first doctor visit is a day the insurer will use to argue that your injuries were not caused by the accident or are not as serious as you claim.

Insurance defence lawyers love to cross-examine plaintiffs with questions like: "If your injuries were so severe, why did you wait two weeks to see a doctor?" or "Isn't it true that you went grocery shopping and attended a family barbecue before visiting a physician?" These questions create doubt in the minds of judges and juries, regardless of the medical reality that adrenaline masks pain and many injuries have delayed onset.

The fix is simple: visit a hospital emergency department or walk-in clinic within hours of the accident — the same day, ideally. Tell the doctor about every symptom, no matter how minor it seems. Follow up with your family doctor within the first week. Follow every referral and attend every appointment. This creates an unbroken medical paper trail from accident to recovery that is extremely difficult for insurers to attack.

Social media has become the insurance industry's most powerful surveillance tool. It is free, it is public, and injured people hand over damaging evidence voluntarily. In Ontario, courts have ordered plaintiffs to produce their entire social media history — including deleted posts and private messages — when relevant to a personal injury claim.

A photograph of you smiling at a birthday party, a check-in at a fitness class, a video of you dancing at a wedding, or even a seemingly innocent status update like "Feeling better today!" can be weaponized by defence lawyers. They will present these posts alongside your claim that you suffer from chronic pain, depression, and inability to enjoy life, and argue to the judge or jury that you are exaggerating.

Our advice to every client: deactivate or privatize all social media accounts (Facebook, Instagram, TikTok, Twitter/X, LinkedIn) for the duration of your claim. Do not post anything — not even on private accounts. Do not let friends tag you in photos or posts. Do not join online support groups using your real name. Insurance investigators routinely create fake profiles to monitor claimants. The safest post is no post at all.

Within days of your accident, you will receive a call from an insurance adjuster — often from the at-fault driver's insurer, but sometimes from your own. They will sound friendly, sympathetic, and helpful. They may say they just need to "get your side of the story" or "process your claim quickly." Then they will ask to record the conversation.

This recorded statement is not to help you. It is a carefully orchestrated interrogation designed to lock you into statements that undermine your claim. The adjuster will ask leading questions that minimize your injuries ("So you're feeling better today?"), establish potential comparative fault ("Were you checking your phone at all before the collision?"), and create inconsistencies that can be exploited at trial.

You are under no legal obligation to provide a recorded statement to the at-fault driver's insurance company. For your own insurer, while you must cooperate in the investigation of your claim, you can — and should — have your lawyer present during any recorded interview. At Kanevsky Law, we handle all insurance communications for our clients, ensuring that nothing you say can be twisted against you.

Insurance companies make early settlement offers for one reason: they know the offer is far less than the claim is worth. Early offers typically arrive when you are at your most vulnerable — in pain, unable to work, facing mounting bills, and desperate for financial relief. The insurer is counting on your desperation to accept a fraction of your claim's true value.

We have seen cases where the initial insurance offer was $15,000, and the final settlement — after proper legal representation and negotiation — was $350,000. We have seen offers of $40,000 that ultimately settled for $800,000. In one brain injury case, the insurer offered $50,000; our client eventually received over $1.2 million. Early offers almost always undervalue your future medical costs, future lost earnings, future pain and suffering, and the long-term impact of your injuries.

The critical issue is that once you accept a settlement and sign a release, it is final. You cannot go back and ask for more money, even if your injuries turn out to be far worse than initially thought. Before accepting any offer, consult a personal injury lawyer who can evaluate whether the offer is fair based on the full scope of your injuries, losses, and future needs. At Kanevsky Law, consultations are free, and our honest assessment may save you hundreds of thousands of dollars.

Many accident victims believe they can handle their own insurance claim and save on legal fees. While you have every right to represent yourself, the statistics tell a different story. Studies consistently show that claimants represented by personal injury lawyers receive settlements 3 to 5 times higher than unrepresented claimants — even after legal fees are deducted.

Why? Because personal injury law in Ontario is complex. The interplay between the Insurance Act, the Statutory Accident Benefits Schedule, the Health Insurance Act, the Limitations Act, the threshold for pain and suffering in motor vehicle accidents, and the rules around collateral benefits requires specialized knowledge. Insurance companies have teams of lawyers. You should too.

Hiring a lawyer late — after you have already given a recorded statement, accepted partial benefits, missed limitation deadlines, or gaps have appeared in your medical records — means your lawyer is working from a weakened position. The earlier you engage a personal injury lawyer, the stronger your case will be. At Kanevsky Law, we work on a contingency fee basis: you pay nothing upfront, and we only get paid if we win your case. There is literally zero financial risk to consulting a lawyer immediately after your accident.

While not among the "top 5," this mistake deserves special mention because it undermines claims more subtly. Insurance companies track your medical appointments. If your doctor prescribes physiotherapy three times a week and you attend only sporadically, the insurer will argue: "If the plaintiff's injuries were truly severe, they would have attended all prescribed treatments."

Missing appointments, cancelling specialist referrals, or discontinuing medication without your doctor's approval creates a "non-compliance" narrative that defence lawyers exploit mercilessly. Even if you have valid reasons for missing treatments — transportation issues, financial constraints, scheduling conflicts — the optics are damaging.

Follow your treatment plan consistently. If you cannot attend an appointment, reschedule rather than cancel. If cost is a barrier, speak with your lawyer — personal injury law firms can often arrange medical treatment that is deferred until settlement. Maintaining a consistent, documented treatment record is one of the strongest things you can do to support your claim.