Multiple Executors in Canada — How Co-Executor Decisions Actually Work

A retired teacher in Kingston names her three adult children as co-executors of her will, thinking it's fair. After her death, the eldest wants to sell the family cottage; the middle wants to keep it as a shared property; the youngest is undecided. Six months later the estate has not moved — no cheque can be signed without all three siblings agreeing, no bank account can be closed, no certificate of appointment of estate trustee can be applied for because the application requires all three signatures. The lawyer the family eventually hires explains the default rule. The teacher's will didn't override it.

This guide walks through how Canadian co-executor decision-making actually works, the clauses that can change the default rule, and when multiple executors are worth the cost. For broader context, see our pillar guide on what does an executor do in Canada and the related how to choose an executor.

The default rule — unanimity #

The starting point in every Canadian common-law province is that co-executors must act unanimously. The rule is centuries old, inherited from English equity. It exists to protect beneficiaries — if any single executor could bind the estate, beneficiaries would have to deal with whichever executor moved fastest, and bad decisions would be impossible to constrain.

In practice, unanimity means:

• Every cheque signed by all executors (or by the estate's bank with all executors' authorizations on file)
• Every contract for sale of estate property signed by all executors
• Every transfer of estate property executed by all executors
• Every release given by beneficiaries signed by all executors
• The probate application itself signed by all proposed executors
• The final accounting and distribution signed off by all executors

The Trustee Acts in each province^[1][2][3] set out the powers and duties of trustees and executors; the unanimity rule is overlaid on those powers by the common law.

The clauses that change the default #

Three patterns are commonly used to override unanimity. Each has trade-offs.

Majority-rules clause. The will explicitly authorizes decisions to be made by majority vote among the co-executors. Works for groups of three or more (any odd number is cleanest). Doesn't work for two co-executors — no majority is possible. The minority executor remains liable for actions taken without their agreement, which can create personal exposure if the majority makes a bad call.

Casting vote / chair clause. One co-executor is designated as the lead, with a casting vote in case of deadlock. Useful for two-co-executor structures. Can create resentment if the casting voter consistently overrules the other.

Joint and several authority. Each co-executor can act alone, binding all of them. Convenient but risky — any one executor's mistake or unauthorized action binds the others. Rarely used in Canadian wills outside special-purpose contexts.

Specific-task divisions. The will assigns specific tasks to specific co-executors — for example, "my son shall manage the sale of the family business; my daughter shall manage the family home and personal effects." This works in narrow circumstances but creates ambiguity at the seams.

In the absence of any of these clauses, the default unanimity rule applies. The drafting moment to override it is when the will is signed — not after death.

Why most lawyers prefer one executor #

The pros and cons of multiple executors break down predictably.

Arguments for multiple executors:

• Splits the workload
• Provides backup if one co-executor becomes unavailable
• Balances different perspectives (financial vs. family-relationships) in complex estates
• Reassures different beneficiary groups in blended families that "their side" has representation
• Adds checks against single-executor self-dealing

Arguments against:

• Coordination friction adds time and cost
• Unanimity requirement means any one executor can block any decision
• Disagreements among siblings or adult children are common and damaging
• Geographic separation (one in Toronto, one in Vancouver, one in London) compounds the friction
• More signatures means more delay at every bank, registry, and brokerage
• Inter-executor disputes can require court applications costing tens of thousands

The balance for most estates leans toward one executor with one or two named alternates. The exceptions are real but specific:

• Complex estate with distinct asset categories — a CPA might be ideal for the financial side, a sibling for the family-belongings side
• Blended family with adult children from prior relationships — naming one executor from each family branch can reduce the perception that one branch will favour itself
• High-stakes business succession — a corporate executor (trust company) plus a family executor can combine expertise with relational continuity
• Special-needs beneficiaries — co-trustees with different perspectives can protect against unilateral decisions affecting a vulnerable beneficiary's interests

For most estates, the cleanest structure is one primary executor with one or two thoughtful alternates. See naming alternate executors for the alternates side of this decision.

What happens when co-executors deadlock #

Three escalation paths exist.

Negotiation. The lowest-friction path. Most disputes between co-executors are resolvable with patient discussion, especially when the underlying disagreement is about communication or perceived fairness rather than substance.

Mediation. A neutral mediator can help co-executors reach agreement on contested decisions without litigation. Mediation is cheaper and faster than court, and the result is usually a written agreement the co-executors can act on. Some provinces require mediation before contested estate matters can reach trial.

Court application. Any interested party (a co-executor, a beneficiary) can apply to the provincial superior court for directions or for removal of one or more executors. Removal is possible under the Trustee Act^[4] and provincial estates legislation on grounds of misconduct, conflict, hostility, or inability to act. The leading Canadian case on executor removal is Hauck v. Schmaltz^[5] — courts are reluctant to override the testator's choice of executor without evidence of real harm to the estate.

The legal cost of court applications is meaningful — $10,000 to $50,000+ depending on contested issues, paid by the estate (which means by the beneficiaries collectively). The deadlock that goes to court costs the family more than the underlying disagreement was worth in most cases.

What this means at the will-drafting stage #

The unanimity rule is the silent assumption in every Canadian will that names multiple executors and doesn't say more. The drafting decisions that matter:

• Name one primary executor where the choice is clear; reach for multiple only where the case is specific
• If you name multiple, decide explicitly: unanimity, majority, casting vote, or joint and several
• If you name multiple, consider whether they live in compatible jurisdictions and whether they can practically work together
• Always name an alternate (or two), even with a single primary

The drafting moment is the moment to think this through. The estate is the wrong place to discover the testator hadn't.

For more on the executor decision, see how to choose an executor in Canada and the pillar guide what does an executor do in Canada.

What we focus on at It's Simple Will #

It's Simple Will guides testators through the executor decision with the unanimity rule built into the explanation. Our default approach is one primary executor with thoughtful alternates; the platform supports multiple executors with explicit decision-making clauses where the testator wants them. See our pillar guides on what probate is in Canada and what does an executor do in Canada, and visit It's Simple Will to start your own document set.