Resolving Partner Disputes in Ontario: Your Options and Legal Remedies

A dispute between business partners is one of the most stressful situations an entrepreneur can face. The business you built together is at risk. Trust has broken down. Daily operations are caught in the crossfire. And the legal options available to you depend heavily on whether you have a written partnership agreement, what it says, and how badly the relationship has deteriorated.

In Ontario, partner disputes can be resolved in a range of ways — from quiet negotiation all the way to court-ordered dissolution. Understanding the landscape before things escalate gives you the best chance of protecting both your business and your own interests.

Start With Your Partnership Agreement

The partnership agreement is your first port of call in any dispute. A well-drafted agreement typically includes:

• A dispute resolution clause setting out a tiered process (negotiation → mediation → arbitration or litigation).
• Deadlock provisions explaining what happens when partners cannot agree on a major decision.
• An expulsion clause describing when and how a partner can be removed.
• A buyout mechanism with an agreed valuation formula or process.

If your agreement addresses the dispute, the path forward is relatively clear. If your agreement is silent — or if you have no written agreement — you fall back on the Partnerships Act defaults, which are rarely designed for conflict situations.

Step 1: Direct Negotiation

Before engaging lawyers or courts, most dispute resolution clauses (and most common sense) require the partners to attempt resolution directly. This means:

• A structured conversation, ideally in writing so there is a record.
• A willingness to articulate the specific problem and what resolution looks like.
• A defined timeline (e.g., 30 days to reach an agreement before moving to the next step).

Many disputes that feel intractable resolve at this stage simply because putting the issues in writing clarifies them. Sometimes a partner who felt ignored simply needs their concerns acknowledged.

Step 2: Mediation

Mediation is a structured negotiation facilitated by a neutral third party — the mediator. Unlike arbitration or court, mediation is:

• Voluntary and confidential: nothing said in mediation can be used against either party later.
• Non-binding: the mediator does not make a decision; they help the parties reach their own agreement.
• Faster and cheaper than litigation: a one-day mediation session typically costs a fraction of what a court proceeding costs.

In Ontario, experienced commercial mediators — including former judges and senior lawyers — are available for business disputes. For many partner conflicts, mediation is where resolution actually happens.

If mediation succeeds, the settlement is documented in a written agreement that is legally binding.

Step 3: Arbitration

If your agreement includes an arbitration clause, unresolved disputes go to a private arbitrator rather than a court. Arbitration in Ontario is governed by the Arbitration Act. It is:

• Binding: the arbitrator's award has the same force as a court judgment.
• Faster than litigation: parties control the timeline more directly.
• Private: hearings are not public, unlike court proceedings.
• Limited appeal rights: arbitral awards are difficult to appeal, which is both an advantage (finality) and a risk (errors are harder to correct).

Arbitration is particularly valuable in partnership disputes where the partners want confidentiality about the business's financial details and internal affairs.

Step 4: Court Proceedings

If the dispute cannot be resolved through negotiation, mediation, or arbitration, court proceedings become the option. In Ontario, partnership disputes can be brought in the Superior Court of Justice.

Claims for Breach of the Partnership Agreement

If one partner has breached their obligations — misappropriating funds, violating a non-compete, failing to contribute capital, acting outside their authority — the aggrieved partner can sue for damages.

Accounting and Financial Disclosure

A partner is entitled to inspect the partnership's books at any time. If a partner suspects financial misconduct or a failure to properly account for profits, they can bring an action for an accounting — requiring the partnership's financial affairs to be examined and any misapplied funds to be repaid.

Oppression Remedies

While the statutory oppression remedy in Ontario applies most directly to corporations, equitable principles that protect minority partners from oppressive, unfairly prejudicial, or unfairly disregarding conduct can be pursued in court.

Court-Ordered Dissolution

A partner can ask the court to dissolve the partnership on grounds including:

• Another partner's incapacity or misconduct.
• The business can only be carried on at a loss.
• It is just and equitable to wind up.

Courts can also order that one partner buy out the other at a judicially determined price, in lieu of full dissolution — preserving the business while ending the conflict.

Appointment of a Receiver

In extreme cases — where the dispute is so severe that assets are at risk — a court can appoint a receiver to manage the partnership's affairs pending resolution. This is rare but is an option when one partner's conduct is causing irreparable harm.

The Shotgun Clause: The Nuclear Option in Your Agreement

If the partnership agreement contains a shotgun buy-sell clause (also called a "pistol clause"), either partner can trigger it at any time by naming a price at which they will either:

• Buy the other partner's interest at that price, or
• Sell their own interest to the other partner at that same price.

The other partner must choose. The elegance of the mechanism is that the offering partner has an incentive to name a fair price — because they do not know which role they will end up in. Shotgun clauses resolve deadlocks efficiently but require the partners to have access to capital to complete the purchase if chosen as the buyer.

Practical Considerations

Document everything. From the moment a dispute begins, keep records of communications, decisions, and the other partner's conduct. This is critical if the matter proceeds to litigation.

Do not drain assets. Withdrawing money or transferring assets during a dispute can constitute a breach of the partnership agreement and may be subject to reversal as a fraudulent preference.

Get legal advice early. The options available to you narrow over time. Early legal advice about your rights and what your agreement says can change the trajectory of the dispute significantly.

Frequently asked questions