Legal Guardianship Responsibilities

A child must have a legal guardian until they reach the age of majority (18 or 19 depending on the province). Before that, they are considered a minor. A legal guardian has many responsibilities when it comes to the child’s care and well-being and is the one to make decisions for them.

If you are a parent, you are your child’s legal guardian, which means you have the legal authority and responsibility to care for them. Children often have more than one legal guardian. For example, if a child has two parents, both are usually legal guardians.

If one legal guardian dies, but the other is still alive, then the surviving guardian remains the children’s sole guardian. If both parents die and the parent who most recently passed away had a legally-binding Will, the children’s guardian is the person appointed in the Will.

When someone dies without a Will — or if you have not appointed a legal guardian for your children in your Will — then the court steps in and appoints one. Someone must apply to the court and request that the role of guardianship be given to them. In this situation, the court won’t have any information from you as the parent or know whether you may have wanted a particular person to be your child’s legal guardian. More than one person may also apply to the court to be named guardian, creating a very stressful situation.

What are a legal guardian’s responsibilities?

As legal guardian of your minor child, this person will ultimately be responsible for your child’s care and assume the role of a parent. They will make decisions for your child and have responsibilities varying from small everyday occurrences to life-altering events.

These decisions and responsibilities include:

  • What your child eats every day
  • Where your child lives and who they live with
  • Who your child interacts with
  • Where your child goes to school
  • How your child gets to and from school
  • What language(s) your child speaks
  • The type of medical treatment your child receives
  • The activities your child participates in
  • If your child attends religious events

The guardian of your children will also be responsible for a variety of things, including:

  • Nurturing your child’s mental, emotional, and physical development
  • Providing a safe place to live
  • Providing food and clean clothes
  • Getting your child ready for school every day
  • Receiving information from others about your child (such as their teacher or doctor)
  • Applying for passports
  • Handling any legal matters

Who is the right guardian for my children?

Since your child’s guardian will have a substantial impact on their life, think long and hard when choosing the best person for this role.

There are many factors to consider when making this decision on guardianship, such as:


How well does your child know this person? And how well does this person know your child?


How old is this person? Will they be able to care for your child if something were to happen in the near future? For instance, you may think that the child’s grandparents may be a good fit to become guardians of a teenager, but not a toddler.


Where does this person live? Would your child need to move to a new neighborhood, or would they move into your home?

Keeping your children together

If you have more than one child, can this person care for all of them under one roof?

Personal situation

Does this person have their own family? If so, are they able to take care of your children as well? What is this person’s work situation? Would they be able to balance a family and work?

Social views

Does this person share your values on important issues like family, religion, and education? If not, could their opposing views affect your children?


Does this person make enough money to support your children? Have you considered how much money you will leave behind for your minor children to inherit once they reach the age of majority (or another age you specify in your Will)? Considering the cost of raising kids, how much money would you need to leave the child’s guardian?

Please note: If you leave the bulk of your assets in your Will to your children and you pass away while they are still minors, those assets are held in trust until they reach the age of majority (or a later age if specified in your Will). If the trust is a discretionary trust — meaning the trustee has some ability to distribute assets earlier — these funds can go towards the cost of living, education, health care, etc.

Suppose you and the other parent are your minor child’s guardians. In that case, it’s redundant to name the other parent as guardian in your Will because if they outlive you, they will continue to hold guardianship.

It’s better if you and the other parent agree to appoint the same person as your child’s guardian in your Wills in the unlikely event you both die at the same time. If this happens and both parents have a Will, the appointments will only hold up in court if both parents name the same guardians in their Wills.

Should I appoint more than one guardian?

You certainly can name multiple guardians in your Will, but should you? It may seem like naming more than one person to be your children’s legal guardians — like your parents or in-laws, or a sibling and their spouse/partner — is the right thing to do. But consider what your wishes would be if that couple gets divorced or if one person predeceases their spouse/partner. Would you want to give legal guardianship to a brother-in-law or sister-in-law to act alone? Maybe, but maybe not. If you wouldn’t, it’s probably best to name one person, like a sibling, as the guardian and exclude their spouse/partner.

It’s also a good idea to name an alternate guardian if the person you choose is unable or unwilling to take on the responsibilities associated with raising your child.

Do I need consent from the guardian?

Being in charge of the personal care of someone else’s children is a huge responsibility. So you must talk to the person you wish to be your children’s guardian in the event of your death. After all, you must make sure they are up to the task. Don’t be offended if they turn down the appointment of guardianship; it’s better to find out now.

Also, depending on where you live, a guardianship appointment in your Will may only be temporary. In Ontario, for instance, the appointment of the person you name as guardian in your Will is only valid for 90 days. During that period, that person must apply to the court for permanent guardianship, making it critical to know ahead of time whether they are willing to take that crucial step.

Upon reviewing the application, the court will appoint a permanent guardian based on the child’s best interests. The wishes outlined in your Will play a significant role in the court’s ultimate decision.

You may also like to write a letter of wishes that sets out some guiding principles that you would like the guardian to use when raising your children. It may contain information pertaining to your intentions around education and religion, some career advice, and any goals you have for your children.

Remember: Review your Will regularly

At any point, while you are alive and not incapable, you can make changes to your Will. Granted, choosing who should be the guardian of your children is a huge decision, but you can rest easy knowing it’s not written in stone.

Choose whoever you think would be the best person for the job right now. You can, and should, make changes as your child gets older or if the guardian you selected no longer feels like the right choice.

Let’s face it, most of us would rather not think about our own death. And the thought of leaving young children behind in the event of a death is almost unimaginable — but it’s critical to have a plan. Understandably, you’ll want to make sure that you are the one looking out for their best interests, not a court of law.