Understanding Malicious Parent Syndrome in Ontario Family Law

What Is Malicious Parent Syndrome?

Malicious Parent Syndrome (MPS) is a term used to describe a pattern of behaviour where one parent, typically during or after a separation or divorce, deliberately attempts to punish or harm the other parent by manipulating the children and the legal system. While not a formal clinical diagnosis, it is recognized in family law proceedings as a serious concern affecting children’s wellbeing.

Signs of Malicious Parent Syndrome

Common behaviours associated with MPS include: deliberately denying court-ordered parenting time; making false allegations of abuse against the other parent; alienating children from the other parent; involving children in adult conflicts; and using litigation as a weapon rather than a dispute resolution tool.

How Ontario Courts Respond

Ontario courts take a dim view of behaviours that harm children’s relationships with either parent. Under the Children’s Law Reform Act and the Divorce Act, courts consider a parent’s willingness to facilitate the child’s relationship with the other parent as a key factor in custody and access decisions.

Where MPS behaviours are proven, courts may: change custody to the other parent; impose supervised access; make cost awards against the offending parent; and refer the matter to the Office of the Children’s Lawyer.

Parental Alienation vs. Malicious Parent Syndrome

Parental alienation refers specifically to a child’s unjustified rejection of one parent due to the influence of the other. MPS is broader and encompasses the full range of vindictive behaviours by one parent against the other, using the children and the legal system as tools.

What to Do If You Are a Victim

If you believe you are experiencing MPS behaviours from your co-parent, it is critical to: document all incidents carefully; comply with all court orders yourself; seek legal advice immediately; and consider requesting a Voice of the Child report or section 30 assessment.

How Tailor Law Can Help

Our experienced family lawyers understand the devastating impact of MPS on families. We can help you document the behaviour, seek appropriate court orders, and protect your relationship with your children.