What happens if several siblings all inherit equal shares in a family business in Ontario?

When several siblings inherit equal shares in a family business, the biggest structural risk is deadlock — with no one holding a majority, any decision that isn't unanimous, or backed by a tie-breaking mechanism, can grind to a halt. This is different from ordinary sibling disagreement about running the business day to day; it's a design problem built into equal ownership itself, and it tends to surface exactly when a decision actually needs to be made, such as whether to sell an asset, bring in new management, or take on debt.

If the parent's will or a pre-existing shareholders' agreement doesn't address how deadlocks get resolved, the siblings are left negotiating a solution after the fact, which is harder to do once positions have hardened. Common fixes include a shareholders' agreement with a buyout mechanism or a casting vote, bringing in an independent director or manager, or, where the business genuinely can't function, one sibling buying out the others. Courts can intervene through an oppression claim or a winding-up application in serious cases, but that's a last resort. Addressing equal ownership before it becomes a problem, through a shareholders' agreement put in place when the shares are inherited, heads off the deadlock rather than resolving it after the fact.