Who stays in the house during separation?
The default: both have the right to stay
The starting point under Canadian family law for married couples is that neither spouse can force the other out of the matrimonial home without either the other's agreement or a court order. Both have the right to remain regardless of whose name appears on the title. It ensures equal rights to possession in the matrimonial home, even if the person who wants to stay is the one who moved in after the other bought it.
In practice, many couples work out who stays and who goes through negotiation, sometimes with the help of a family lawyer or a mediator. That agreement is usually documented in a written separation agreement. The person who moves out does not lose their property rights by doing so; their financial entitlement to the home's equity is determined by law, not by physical presence. However, if you move out voluntarily, it can be harder to return later, and the living arrangements you establish during separation can create a status quo that influences future decisions.
What about the children?
A common fear is that moving out of the family home means losing child custody. This is a misconception. Parenting arrangements are determined by the best interests of the child, not by who stayed in the house. A parent who moves out is not disadvantaged in parenting decisions simply because they live elsewhere, but continues to share decision making responsibility and maintains regular parenting time.
That said, if you move out and the children remain with the other parent, a status quo begins to form. Courts are generally reluctant to disrupt arrangements that are working reasonably well for children. The practical advice: if you move out, maintain your parenting time consistently and document that involvement.
Exclusive Possession Orders
When mutual agreement isn't possible and one spouse needs the other to leave, the legal mechanism is an exclusive possession order. This means a court order granting one spouse the exclusive right to remain in the matrimonial home while excluding the other from entering it. Violating an exclusive possession order is contempt of court.
These orders are not granted automatically or easily. Courts analyze the situation carefully, and make their decision based on the presence of domestic violence or safety concerns (the strongest basis for an order), the best interests of the children, which parent is the primary caregiver, each party's financial ability to maintain the home and find alternative housing, and the level and nature of conflict between the spouses.
Source: Ontario Family Law Act – Exclusive Possession of Matrimonial Home