The Homesteads Act, 1989 requires written consent from both spouses to sell the family home regardless of whose name sits on title, and where both names are already on the deed that consent is usually straightforward to document once both parties sign the listing agreement.
The Family Property Act governs how the proceeds eventually get divided, which is a separate question from the decision to sell, so agreeing on a price range and a rule for deciding between offers before listing avoids relitigating both issues at once during a live negotiation.
Where one spouse will not cooperate, the other can apply to the Court of King's Bench for an order permitting the sale, which adds real weeks and legal fees of roughly $800 to $1,500 on top of the usual timeline. Get your hand-reviewed valuation from Joel Dyck.