How do the terms we settled on actually become binding?

A separation agreement: writing, signature, witness

Section 55(1) of the Family Law Act makes a domestic contract, including a separation agreement, unenforceable unless it is in writing, signed by both spouses, and witnessed. A separation agreement can deal with property, support, decision-making responsibility and parenting time, and any other matter in the settlement of your affairs, under section 54.

Independent legal advice is not itself a formal requirement, but it is the accepted way to show, years later, that each of you understood what you signed — which matters because of what section 56 lets a court do afterward.

We draft the agreement, or review one your spouse's lawyer drafted, and witness the signature so it meets section 55's formal requirements.

A consent order: agreement inside a court case

If you have already started a court case, an agreement reached partway through can be put before the judge as a consent order rather than, or in addition to, a separate agreement. It has the same practical effect as an order made after a trial and can be enforced the same way, without the case needing to go any further.

Consent orders suit couples who are already in the court system and want the file closed cleanly, rather than running a separate agreement alongside a case that technically remains open.

A contested order: what a judge decides

If a case does not settle, a judge decides the outstanding issues after a trial and makes a final order. Unlike a negotiated agreement, an order is enforceable immediately on its terms and can be appealed, within strict time limits, if a party believes the judge made a legal error.

An order and an agreement can sit side by side — for example, a final order on parenting after a trial, alongside a separately negotiated property settlement reached once the emotionally harder issue was decided.

What a court can still change or set aside

Section 56 of the Family Law Act keeps three doors open regardless of what an agreement says: a court may disregard a parenting term that is not in the child's best interests, disregard a child support term that is unreasonable against the Guidelines, and set aside the contract or a provision under section 56(4) for non-disclosure, a lack of understanding, or ordinary contract-law grounds like duress or unconscionability. A court order can also be varied later where the Divorce Act or Family Law Act allows it, typically on a material change in circumstances.

Complete disclosure, independent advice and time to consider the terms are what closes those doors as far as they can be closed, for either an agreement or a consent order.

Filing support terms for enforcement

A separation agreement's support terms can be filed with the Ontario Court of Justice or the Superior Court of Justice under section 35 of the Family Law Act, after which they can be enforced and varied like a court order. A court order with support terms can be registered with the Family Responsibility Office directly. Either route means the office collects from the payor and pays the recipient, rather than leaving enforcement to the two of you.

Filing is optional for an agreement but is what allows the Family Responsibility Office's enforcement tools — garnishment, licence suspension, reporting to credit bureaus — to apply if support is missed.