Alternatives to Law Firms for Ontario Investigations

You just received a workplace complaint. Harassment, discrimination, a code of conduct breach — something that demands investigation. Your first instinct is to call a lawyer. Sometimes that instinct is exactly right. Often, though, what the matter requires is independent fact-finding rather than legal representation.

Some matters require employment counsel, particularly where litigation strategy or privilege is central. Others require independent fact-finding rather than legal representation. The intake process should identify which role the situation requires.

This guide lays out the alternatives to hiring a law firm for workplace investigations in Ontario, compares them honestly, and helps you decide which one fits your situation.

Key Takeaways

What you'll learn in this guide:

• When a law firm is the right call for a workplace investigation — and when it isn't
• Five alternatives to law firm investigations, with honest pros and cons for each
• A side-by-side comparison of the investigation approaches
• A decision framework to match your situation to the right investigation model
• When you should absolutely still hire a law firm (we're transparent about this)

Why Employers Look for Alternatives

Three forces drive employers to look at the full range of options.

Cost. Rates for investigation work vary widely by firm and matter complexity. Whatever model you choose, obtain a written quote and scope before work begins, so the spend is proportionate to the issue being investigated.

Speed. The OHSA requires investigations to be conducted in a timely manner. Employees wait for answers, witnesses forget details, and the workplace dynamic deteriorates while everyone waits for a report — so ask any prospective investigator how the expected timeline will be set out in the written scope, and what could extend it.

Fit of the deliverable. Some mandates call for a report written for legal proceedings; others call for a report the employer can act on — clear findings, plain language, and practical recommendations. Be clear at intake about which audience the report must serve.

None of this means law firms do bad work. They do excellent work — the question is whether the matter in front of you requires legal representation and privilege, or independent fact-finding.

Alternative 1: Independent HR Investigation Firm

This is the primary alternative for most Ontario employers, and it's where the market is moving.

What it is. An independent firm that specializes in workplace investigations, led by senior HR practitioners and investigation specialists rather than lawyers. The work covers the same ground a law-firm investigation covers — structured interviews, evidence analysis, credibility assessment, a written findings report — and is priced without a law firm's cost base. Credentials vary by firm and by investigator; ask who specifically will lead your matter, what training they hold, and who signs the report.

How it works. You engage the firm when a complaint arrives. They assess scope, propose an investigation plan with a written fee, conduct interviews, analyze evidence, and deliver a written findings report. The report uses the substantiated / not substantiated / partially substantiated framework, applying the balance-of-probabilities standard used in workplace investigations.

Pros:

• A written fee and scope before work begins, so cost is settled up front rather than accruing hourly
• Investigation is the core practice, not a sideline to a litigation caseload
• Reports written for the employer audience — clear language, actionable recommendations
• Practitioners with relevant HR experience may bring useful context about workplace dynamics and organizational culture; verify the proposed investigator's specific experience rather than relying on the firm label
• Post-investigation support — implementation help, retaliation monitoring, policy updates — is typically scoped separately after findings are delivered, which protects the investigator's independence

Cons:

• No solicitor-client privilege — investigation report could be disclosed in litigation or tribunal proceedings
• May not be appropriate if litigation is already filed or imminent
• Investigator cannot provide legal advice or represent the organization in court
• Smaller firms may have limited geographic reach for multi-location investigations

Best for: Harassment, bullying, discrimination, misconduct, code of conduct violations, and workplace violence complaints where litigation is not already underway and solicitor-client privilege is not essential.

What to look for: CHRP or CHRL certification, formal investigation training (not just HR generalist experience), trauma-informed interview methodology, a clear investigation plan before engagement, and a written fee and scope before work begins. See our guide on how to choose a workplace investigator for detailed evaluation criteria.

Alternative 2: Internal HR Investigation

What it is. Your in-house HR team conducts the investigation using internal resources.

How it works. An HR professional — ideally someone with investigation training — interviews the complainant, respondent, and witnesses, reviews evidence, and prepares a findings summary or report. The organization manages the entire process internally.

Pros:

• Lowest direct cost — no external fees
• Fastest to initiate — no engagement process or onboarding
• Internal investigator understands organizational context, culture, and politics
• Maintains full control over process and timeline

Cons:

• Conflict of interest risk is significant — the investigator works for the organization, reports to leadership, and may have relationships with parties involved
• Perceived bias, even if the investigation is conducted fairly, can undermine credibility of findings
• Most HR generalists lack formal investigation training — interview technique, evidence handling, credibility assessment, and report writing are specialized skills
• If the investigation is later challenged at a tribunal or in court, an internal investigation faces higher scrutiny
• The investigator's other HR responsibilities create competing priorities and delays
• Investigating a complaint involving a senior leader or HR colleague is effectively impossible internally

Best for: Low-severity policy violations, situations where the facts are largely undisputed, and minor interpersonal conflicts that don't involve protected grounds under the Ontario Human Rights Code.

Critical consideration: The OHSA requires an investigation that is "appropriate in the circumstances," and Ministry of Labour guidance expects the investigator to be objective and uninvolved in the underlying incident. If your internal HR team lacks formal investigation training, conducting the investigation internally may create more legal risk than it avoids. The cost savings from doing it yourself are meaningless if the investigation doesn't hold up under scrutiny. For more on this distinction, see Am I Legally Required to Investigate?

Alternative 3: Solo Freelance Investigator

What it is. An individual — typically a retired HR executive, former labour relations specialist, or independent consultant — who conducts investigations on a contract basis.

How it works. You hire the individual directly. They conduct the investigation independently, typically charging by the hour or by the project.

Pros:

• Rates vary widely by practitioner; many charge less than an institutional provider — obtain a written quote
• Direct relationship with the person doing the work — no delegation
• Many have deep subject-matter expertise from careers in HR, labour relations, or compliance

Cons:

• No organizational backup — if the investigator is unavailable, sick, or has a scheduling conflict, your investigation stalls
• Quality varies enormously — no accreditation standard exists for workplace investigators in Ontario
• Limited liability protection — solo practitioners may carry minimal professional liability insurance
• No quality assurance process — no peer review of reports, no second opinion on credibility assessments
• May lack current knowledge of evolving case law, tribunal decisions, and best practices
• No post-investigation support infrastructure

Best for: Smaller organizations with established relationships with a known, trusted investigator, and where the investigation is straightforward.

Risk factor: The biggest risk with solo investigators isn't competence — many are excellent. It's the lack of a quality framework around them. A law firm or established investigation practice has internal review processes, professional standards, and institutional accountability. A solo operator has their own judgment, full stop.

Alternative 4: Mediation Instead of Investigation

What it is. A facilitated resolution process where a neutral third party helps the complainant and respondent reach a mutually acceptable outcome without a formal investigation.

How it works. A mediator meets separately with each party, identifies interests and concerns, and facilitates dialogue toward resolution. The outcome is typically a written agreement between the parties.

Pros:

• Faster resolution — often completed in days, not weeks
• Cost varies by mediator and scope, and is typically lower than a formal investigation — obtain a written quote
• Preserves relationships — investigation is inherently adversarial; mediation seeks common ground
• Higher satisfaction rates — parties have input into the outcome rather than having one imposed
• Confidential — mediation proceedings are private and without prejudice

Cons:

• Not appropriate for serious allegations — harassment, discrimination, violence, and criminal conduct require investigation, not negotiation
• Cannot be used when there's a power imbalance between parties (manager/subordinate, executive/employee)
• Does not create a documented record — if the same issue recurs, you have no findings to reference
• Does not satisfy the OHSA duty to investigate — mediation is not a substitute for investigation when investigation is legally required
• Requires voluntary participation from both parties — if the respondent refuses, mediation cannot proceed

Best for: Interpersonal conflicts, communication breakdowns, management style complaints, and situations where both parties want resolution rather than adjudication. Mediation works best when used proactively — before situations escalate to the point where investigation becomes necessary.

Warning: Some employers use mediation to avoid investigation. This is a mistake with serious legal consequences. Under the OHSA, complaints of harassment and violence require investigation — you cannot mediate your way out of a statutory obligation. See OHSA Employer Investigation Obligations for the specific requirements.

Alternative 5: HR Consulting Firm with Investigation Practice

What it is. A generalist HR consulting firm that offers workplace investigations as one service among many — alongside recruitment, compensation, training, and organizational development.

How it works. Similar to an independent investigation firm, but investigations are a secondary offering rather than a core specialization.

Pros:

• Bundled services — the same firm handling your investigations may also handle your HR projects, creating a single vendor relationship
• Moderate cost — typically between solo investigator and law firm rates
• Organizational understanding — if they're already your HR consultant, they know your policies and culture

Cons:

• Investigation is not their primary expertise — the same consultant who ran your compensation review last month is now conducting your harassment investigation
• Potential conflict of interest — if the firm provides ongoing HR services to your organization, their independence as investigators is compromised
• Quality depends entirely on the individual assigned, and rotation is common at larger consulting firms
• May lack specialized investigation training, trauma-informed methodology, or current knowledge of investigation case law

Best for: Organizations that already have a trusted HR consulting relationship and are facing a low-complexity investigation where specialized expertise isn't critical.

Comparison Table: All Options Side by Side

Factor	Law Firm	Independent HR Investigation Firm	Internal HR	Solo Investigator	Mediation	HR Consulting Firm
Cost	Varies; typically the highest	Varies by scope; written quote	Staff time only	Varies by practitioner	Typically lowest of the external options	Varies by scope
Timeline	Set by counsel's caseload and process	Set in the written scope	Depends on internal capacity	Depends on availability	Often days	Depends on assignment
Solicitor-Client Privilege	Possible when structured by counsel	No	No	No	Without prejudice	No
Independence	High	High	Low	High	N/A	Moderate
Post-Investigation Support	Limited	Separately scoped after findings	N/A	Limited	Limited	Moderate
Billing Model	Typically hourly	Written fee and scope	N/A	Hourly or project	Flat fee	Hourly or project
Best For	Litigation, criminal, privilege-required	Independent fact-finding	Minor policy issues	Simple, known investigator	Interpersonal conflict	Low-complexity, existing relationship

Decision Framework: Which Option Is Right for You?

Use this framework to match your situation to the right investigation approach.

Choose a law firm if:

• Litigation has already been filed or a demand letter has been received
• The allegations involve potential criminal conduct (assault, theft, fraud)
• You need solicitor-client privilege to protect the investigation from disclosure
• A regulatory body is already involved (Ministry of Labour order, Human Rights Tribunal application)
• The respondent is a C-suite executive or board member with significant legal exposure

Choose an independent HR investigation firm if:

• You have a harassment, discrimination, bullying, misconduct, or violence complaint
• No litigation is currently filed
• You need independent, documented fact-finding at a proportionate cost
• Your organization doesn't have in-house investigation capacity
• You want a written fee and scope before work begins
• You want the expected timeline set out in the written scope
• You want post-investigation support (policy review, remediation guidance, follow-up monitoring), separately scoped after findings

Handle internally if:

• The issue is a minor policy violation with undisputed facts
• No protected grounds are implicated
• Your HR team has formal investigation training
• There's no conflict of interest in who would investigate
• The matter doesn't involve a manager investigating their own direct report

Use mediation if:

• The issue is interpersonal conflict, not misconduct
• Both parties are willing to participate voluntarily
• There's no OHSA obligation to investigate
• No protected grounds under the Human Rights Code are involved
• Preserving the working relationship is a priority

Engage a solo investigator if:

• You have an established, trusted relationship with a specific investigator
• The investigation is straightforward (single allegation, few witnesses)
• You're comfortable with no institutional backup or quality framework

When You Should Absolutely Still Use a Law Firm

We'd be doing you a disservice if we positioned alternatives as universally better. They aren't. Law firms are the right choice in specific, important situations.

Active or imminent litigation. If you've received a Statement of Claim, a Human Rights Tribunal application, or a demand letter, you need legal counsel directing the investigation. The investigation findings will be scrutinized in legal proceedings, and solicitor-client privilege may be essential to your defense strategy.

Criminal allegations. Allegations involving assault, sexual assault, theft, or fraud may require parallel investigations — one for employment purposes, one for law enforcement. Legal counsel coordinates this effectively. Criminal matters also raise self-incrimination considerations that HR investigators aren't trained to navigate.

Regulatory enforcement. If the Ministry of Labour has issued an order, or if a regulatory body is actively investigating your organization, legal counsel should be involved from the outset.

Executive-level respondents. When the person being investigated is a CEO, CFO, or board member, the political dynamics, media exposure risk, and potential personal liability are significant enough to warrant legal guidance alongside the investigation.

Unionized grievance arbitration. If the investigation will feed into a grievance arbitration process, legal counsel familiar with labour arbitration should be involved to ensure the investigation methodology and report meet arbitral standards.

In these situations, the cost of legal counsel isn't an unnecessary expense — it's a proportionate investment in organizational protection.

FAQ

How is an investigation by an HR consultant assessed on review?

The standard for workplace investigations in Ontario looks at the quality of the investigation — not the professional designation of the investigator. An investigator with formal investigation training can run a documented process designed to support fair decision-making and independent review, and there is no licence required to conduct a workplace investigation in Ontario. The key factors reviewers assess are methodology, impartiality, and thoroughness — not whether the investigator has a law degree. No provider can promise how a tribunal, arbitrator, or court will treat a particular report.

Will I lose solicitor-client privilege if I don't use a law firm?

You can't lose what you don't have. Solicitor-client privilege generally attaches only when the investigation is directed by legal counsel for the purpose of providing legal advice; an investigation by a non-lawyer investigator is not privileged. Whether privilege matters for your situation — and whether a particular structure would actually attract it — depends on the specific facts and the advice of your counsel. Confirm before relying on it. Many matters resolve through workplace remediation and never require privilege, but that is a judgment to make at intake with counsel where litigation is plausible.

Can I switch from a law firm to an independent investigator mid-process?

Generally, yes — though it depends on how far the investigation has progressed. If you're still in the planning stage, switching is straightforward. If interviews have already been conducted, a new investigator would typically need to re-interview witnesses to maintain investigation integrity. The key consideration is whether the change creates a perception of investigator-shopping. Consult with your new investigator about the cleanest handoff approach.

What if the investigation findings are challenged at a tribunal?

Investigation findings can be challenged in Human Rights Tribunal and labour arbitration proceedings, regardless of who conducted them. Tribunals evaluate investigations based on methodology — was it timely, thorough, fair to all parties, and based on evidence? What matters is the investigation process, not the investigator's professional title: the file should be documented so an independent reviewer can follow the evidence to the findings.

How do I explain to my board that we didn't use a law firm?

Frame it as responsible stewardship. You assessed at intake whether the matter required legal representation and privilege or independent fact-finding, and you engaged an independent investigator with formal investigation training, under a written fee and scope, using a documented investigation process designed to support fair decision-making and independent review. You right-sized the response to the situation. If the board asks whether the investigation will hold up, the answer is the same as it would be for a law firm investigation: it depends on the quality of the methodology, not who signed the engagement letter.

Take the Next Step

If you are considering external support, review our employer-side Ontario workplace investigation fit and process. We reply to enquiries within one business day. A mandate is accepted only after fit, conflicts, jurisdiction, the proposed practitioner's authorization and insurance, and capacity are confirmed; an enquiry does not reserve a call or mandate.

---

Related reading:

• The Complete Guide to Workplace Investigations in Ontario
• Law Firm vs. HR Consultant — Which Do You Need?
• How to Choose a Workplace Investigator
• Am I Legally Required to Investigate?
• OHSA Employer Investigation Obligations
• Independent Workplace Investigations — Our Service

---

Where 1205 may fit. 1205 Consulting accepts enquiries about employer-side Ontario workplace matters. If the acceptance gates are met, the written scope identifies the proposed practitioner, role, method, reporting responsibility, timing, and fee. 1205 is not a law firm and does not provide legal advice.