A person can complain to the Law Society of Ontario about a lawyer or paralegal within three years of the conduct in question (no time limit for sexual abuse allegations). Roughly 15% of complaints are referred for investigation, where the licensee has a duty to cooperate — including producing records and answering questions. If the Proceedings Authorization Committee finds reasonable and probable grounds, the matter proceeds to a discipline hearing before the Law Society Tribunal, which can order fines, conditions, suspension, or revocation.
- Complainants generally have three years from the conduct (or discovery of it) to complain — with no time limit for sexual abuse allegations.
- About 15% of complaints are referred for a formal investigation; roughly two-thirds of those are resolved without a hearing.
- Lawyers and paralegals have a duty to cooperate with an LSO investigation — including producing records and answering questions, unlike a police investigation.
- The Proceedings Authorization Committee decides whether reasonable and probable grounds exist to authorize a discipline hearing.
- A discipline hearing before the Law Society Tribunal can result in costs orders, fines, licence conditions, suspension, or revocation.
- Straightforward complaints can close within 1 to 3 months; complex or serious matters can take a year or longer.
The Complaint Stage
Anyone — a client, opposing counsel, a judge, or a member of the public — can file a complaint against a lawyer or paralegal with the Law Society of Ontario (LSO). Complainants generally have three years from when the issue occurred, or was discovered, to file — except for complaints involving sexual abuse, which carry no time limit. Not every complaint proceeds far: many are resolved, closed, or dismissed at an early stage based on the LSO's initial review.
The Investigation — and Your Duty to Cooperate
Historically, roughly 15% of complaints filed are referred for a formal investigation. This is where LSO investigations differ sharply from a police investigation: lawyers and paralegals have a professional duty to cooperate, which means producing records on request, allowing LSO staff into their offices, and answering questions. Around two-thirds of complaints that reach the investigation stage are resolved without proceeding further.
Because you are required to cooperate — and because what you say becomes part of the permanent record — getting legal advice before you respond to an investigator is one of the most consequential decisions in the entire process.
The Proceedings Authorization Committee
Where an investigation raises serious concerns, the matter goes to the Proceedings Authorization Committee (PAC), made up of LSO benchers. The PAC decides whether there are reasonable and probable grounds to believe the lawyer or paralegal engaged in professional misconduct, conduct unbecoming, failed to meet standards of professional competence, or is incapacitated — and if so, whether to authorize a discipline hearing.
The Discipline Hearing
Most complaints never reach a discipline hearing — but where the PAC authorizes one, it is a formal proceeding before the Law Society Tribunal, where a Tribunal member decides the case based on the evidence and arguments presented by both sides. This is functionally similar to a court trial, including the ability to call and cross-examine witnesses.
Many matters that reach the discipline stage resolve through a negotiated settlement — an Agreed Statement of Facts and Joint Submission on Penalty — rather than a fully contested hearing. See our related guide on settlement agreements in Ontario regulatory proceedings.
Possible Outcomes
At the end of a discipline hearing, the Law Society Tribunal has the power to order the lawyer or paralegal to pay costs of the investigation and hearing, pay a fine, accept terms and conditions on their licence, or in serious cases, order a suspension or revocation of their licence to practise.
A Toronto paralegal receives notice of a client complaint about missed deadlines and poor communication. Because the duty to cooperate requires a full written response to the investigator, the paralegal retains regulatory counsel before responding — ensuring the explanation is accurate, complete, and framed appropriately, rather than risking an inadvertently damaging admission.
How Long It Takes
Straightforward complaints can close within 1 to 3 months. More complicated or serious matters can take a year or longer, particularly where the matter proceeds through a full investigation and contested discipline hearing. See our general guide on how long a professional discipline proceeding takes in Ontario for the stages common across all regulated professions.
Why Early Legal Advice Matters
Given the duty to cooperate and the permanence of the investigative record, the most consequential decisions in an LSO matter often happen well before any hearing is scheduled. Early legal advice on how to respond to a complaint or investigator's questions can materially affect where a matter ultimately lands on the range of outcomes.
Call our Toronto regulatory defence lawyers at 416-274-2222 for a confidential consultation about an LSO complaint or investigation.
Frequently Asked Questions
Generally three years from when the issue occurred or was discovered, except for complaints involving sexual abuse, which have no time limit.
Historically, around 15% of complaints filed are referred for a formal investigation — meaning most complaints are resolved or closed at an earlier stage without proceeding that far.
Yes. Unlike a police investigation, lawyers and paralegals have a professional duty to cooperate with an LSO investigation — including producing records upon request, permitting staff to enter their offices, and answering questions. This makes early legal advice especially important, since your own statements can shape the outcome.
It is a committee of LSO benchers responsible for deciding whether there are reasonable and probable grounds to believe a lawyer or paralegal engaged in professional misconduct, conduct unbecoming, or failed to meet competence standards — and if so, whether to authorize a discipline hearing.
A discipline hearing is a formal proceeding before the Law Society Tribunal, where a Tribunal member hears evidence and argument from both sides and decides the case. If misconduct is found, the Tribunal can order costs, fines, licence conditions, suspension, or revocation.
Straightforward complaints can close within 1 to 3 months. More complicated or serious matters can take a year or longer, particularly if they proceed all the way to a contested discipline hearing.
Ideally, involve a lawyer at the complaint and investigation stage, not just at a hearing. Given the duty to cooperate and produce records, how the investigation stage is handled often shapes — or entirely determines — the ultimate outcome.