How to Name a Guardian for Your Children in Your Will

7 min read · Updated June 13, 2026

For parents of young children, the guardian designation is the single most important clause in a will. If both parents die without naming a guardian, a probate court decides who raises the children — with no guidance from the people who knew them best. The process is painful, slow, and may produce an outcome the parents would never have chosen.

Naming a guardian takes less than an hour and costs nothing beyond the broader cost of writing a will. Yet millions of parents with young children have no estate plan at all.¹

What a Guardian Does

A guardian of the person is the individual responsible for the day-to-day care and upbringing of a minor child — where they live, what school they attend, their medical care, and all the decisions that a parent would otherwise make.²

A guardian of the property (also called a conservator in many states) manages any assets the child inherits until they reach the age of majority. This is a distinct role that requires accounting for the child’s assets, filing annual reports with the court in most states, and exercising fiduciary judgment in managing investments.³

These two roles can be — and often should be — held by different people.

The Legal Mechanism: It Must Be in Your Will

A guardian nomination is only legally recognized when it is made in a valid, executed will.⁴ A letter, a conversation, a text message, a note left in a drawer, or even a notarized document outside of a will is generally not enforceable. Courts have repeatedly held that informal expressions of a parent’s wishes — however sincere — are not binding guardianship nominations.⁵

The nomination of a guardian in a will is not automatically final. Under the Uniform Guardianship, Conservatorship, and Other Protective Arrangements Act (UGCOPAA), adopted in several states, and under common law in others, a court must still approve the nominated guardian and determine that the appointment serves the child’s best interests.⁶ However, courts give parents’ written nominations very strong weight in the absence of evidence that the nominee would harm the child.

What Happens Without a Guardian Nomination

If both parents die without naming a guardian, the court will determine who should raise the child. In practice, this typically means:

1. A family member files a petition with the probate court to be appointed guardian
2. Competing family members may also file, creating contested proceedings
3. The court conducts hearings, potentially including a guardian ad litem appointed to represent the child’s interests
4. The process takes months and can cost thousands of dollars in legal fees
5. The outcome is uncertain — courts generally prefer relatives, but are not required to choose one

Children may be placed in temporary foster care during contested proceedings if no family member is immediately available and suitable.⁷

Choosing the Right Guardian

There is no universally right answer, and many parents find this the most emotionally difficult part of estate planning. Consider these factors:

Values and Parenting Style

Will this person raise your children with values consistent with your own? Consider religion, education priorities, discipline approach, and life philosophy. A guardian you deeply trust as a person but who has very different values about how children should be raised may not be the right choice.

Existing Relationship with Your Children

Children adjust better to guardianship when they already have a strong relationship with the guardian. An aunt or uncle they see frequently is typically a better choice than a distant relative who is more financially stable but barely knows them.

Age, Health, and Life Circumstances

A guardian who is 75 years old may not be the best long-term choice for a toddler. A sibling who travels frequently for work, has a difficult marriage, or lives abroad presents practical challenges. Consider the guardian’s own family situation — do they have children of their own, and how will your children integrate into that family?

Willingness

Never name a guardian without having an explicit conversation first. Many people are honored to be named; others are genuinely not in a position to take on the responsibility. Someone who is unwilling will still be recognized by the court as the nominated guardian and will then need to decline, potentially creating uncertainty during an already difficult time.

Geographic Considerations

Moving children away from their school, friends, extended family, and community adds additional trauma to an already devastating loss. A guardian who lives nearby — or who is willing to relocate — minimizes this disruption.

Naming Separate Property and Personal Guardians

Many estate planners recommend separating the guardian of the person from the guardian of the property (trustee/conservator). The strongest caregiver — perhaps a loving sibling who is great with children — may not have the financial literacy or temperament to manage a trust or investment portfolio.

A common structure is:

• Guardian of the person: A sibling, close friend, or relative who will provide the day-to-day care
• Trustee: A financially sophisticated family member, a trusted friend with professional experience, or a corporate trustee at a bank or trust company

If you establish a testamentary trust in your will (a trust that comes into existence at your death), you can name a trustee who controls the assets while a separate guardian handles the parenting.⁸

Naming Successor Guardians

Always name at least one successor guardian in case your first choice is unable or unwilling to serve when the time comes. Circumstances change — people die, become ill, move abroad, or face situations that make guardianship impossible. Without a successor nomination, the court reverts to its own selection process.

Standby and Temporary Guardianship

Some states allow parents to designate a standby guardian — someone who can immediately assume care of a child if both parents become incapacitated without dying. This is especially important for single parents or families with special medical circumstances.⁹ Standby guardianship statutes exist in about 40 states and allow the designation to take effect automatically upon a triggering event (hospitalization, incapacity), without waiting for probate court action.

Guardianship for Children with Special Needs

For children with disabilities who will require support beyond age 18, the guardianship conversation requires additional planning. A child who receives Medicaid, SSI, or other means-tested benefits will lose those benefits if they inherit more than $2,000 in countable assets.¹⁰ Guardianship for an adult with a disability is a separate legal process from the minor child guardianship in a will.

Consider:

• A special needs trust (third-party SNT) to hold inherited assets without disqualifying the child from benefits¹¹
• A guardian or trustee experienced in special needs planning
• A Letter of Intent describing the child’s medical history, daily routine, preferences, and care needs — not legally binding, but invaluable guidance for a future guardian

Making It Official

1. Draft your will (or amend it with a codicil) with a specific guardian nomination clause
2. Have the will properly witnessed and executed per your state’s requirements
3. Tell the nominated guardian where the original will is kept
4. Review the designation after major life changes — if your nominated guardian moves, marries, has their own children, or has a falling-out with you, it may be time to update

References

1. Caring.com, “2024 Wills and Estate Planning Study,” caring.com/caregivers/estate-planning/wills-survey/
2. Cornell Law School Legal Information Institute, “Guardianship,” law.cornell.edu/wex/guardianship
3. Cornell Law School Legal Information Institute, “Conservatorship,” law.cornell.edu/wex/conservatorship
4. Uniform Probate Code § 2-501 et seq., uniformlaws.org
5. In re Guardianship of Browning, 568 So. 2d 4 (Fla. 1990); general treatment of informal nominations across jurisdictions
6. Uniform Guardianship, Conservatorship, and Other Protective Arrangements Act (2017), uniformlaws.org/committees/community-home?CommunityKey=2eba8654-8871-4905-ad38-aabbd573911c
7. Child Welfare Information Gateway, “Kinship Caregivers and the Child Welfare System,” childwelfare.gov/topics/outofhome/kinship/
8. American Bar Association, “Testamentary Trusts,” americanbar.org/groups/real_property_trust_estate/resources/estate_planning/
9. National Conference of State Legislatures, “Standby Guardianship,” ncsl.org/research/human-services/standby-guardianship.aspx
10. Social Security Administration, “SI 01110.003 — What Is a Resource?” ssa.gov; SSI resource limit: $2,000 for an individual
11. Special Needs Alliance, “What Is a Special Needs Trust?” specialneedsalliance.org/the-voice/what-is-a-special-needs-trust/

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