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Wills, Guardianship, and the Legal Side of New Parenthood

9 min read

A baby changes your legal picture more than almost any other life event. Before the birth, most couples own things jointly and answer for themselves. After it, a person exists who depends entirely on decisions you have written down, or have not. A small set of documents covers the gap: a guardianship nomination, a will, powers of attorney, advance directives, and the beneficiary forms attached to your accounts. None of them takes long. All of them work quietly in the background for decades. Done once, this paperwork is a gift to the people you love, stated plainly and then filed away. This guide explains what each document does and who ends up using it. It is information, not legal advice.

The guardianship nomination

This is the document parents care about most, and the one that only exists if someone writes it down. A guardianship nomination names the person you want to raise your child if both parents die before the child is an adult. In most cases, the nomination lives inside a will.

Here is the part that surprises people: the nomination is a nomination, not an appointment. A judge makes the final decision, and the judge's job is to protect the child's best interests. But the nomination carries real weight. Legal reference sources note that judges follow a parent's stated wishes in the vast majority of cases. The document turns your preference into evidence the court can act on.

Without a nomination, the court still appoints a guardian. It just does so without knowing what the parents wanted. Relatives can disagree about who steps in, and the disagreement itself becomes a court matter, at the worst possible time for everyone involved. A written nomination is the difference between a judge confirming your choice and a judge guessing at it.

A few mechanics worth knowing. Nominations commonly include a backup in case the first choice cannot serve. The named person's consent is not required in advance, though most parents ask first. And raising a child and managing a child's money are separable roles: some families name one person for the child's care and a different person, or a trust, for the finances. An attorney explains how those pieces fit together in your state.

Parents of minor children often name each other first, with the guardianship nomination covering the situation where neither parent survives. Each parent's will carries the nomination, so the two documents say the same thing.

This is general information, not legal advice. For decisions about your situation, consult a licensed attorney.

The will

A will is a legal document that states your wishes for how your property is managed and distributed after death. It also names an executor, the person who carries those wishes out, and for parents it holds the guardianship nomination described above.

The alternative to a will has a name: intestacy. Dying without a valid will means dying intestate. The estate then goes through probate court, and the state's intestacy rules, not the family's preferences, determine who inherits. Those rules follow a fixed formula based on surviving relatives. They do not know your situation, your relationships, or your intentions for your child.

Validity requirements are set by state law, and they vary. As a general pattern, a will is a written document, signed by the person making it, with the signing witnessed, commonly by two people. Some states add or relax formalities. A will that satisfies one state's rules can fail another's, which is one reason moving between states is a moment when families revisit their documents.

There are three broad routes to getting a will made.

An estate planning attorney. The attorney interviews you, drafts documents tailored to your state and your situation, and supervises the signing so the formalities are met. This route fits every family and is the standard answer for anything beyond the simple case: blended families, a child with a disability, a family business, significant or complicated assets, or parents who simply want questions answered by a person.

An online will service. These platforms use a structured questionnaire to generate documents intended to meet your state's requirements, at a lower cost than attorney drafting. They fit simpler estates. The signing and witnessing still happen in the physical world, under your state's rules, and the service does not review your individual situation the way an attorney does.

Self-prepared documents under state law. Every state defines what makes a will valid, and some publish forms or recognize specific formats. This route depends entirely on getting the state's own formalities right, because a defect in execution can leave the family in intestacy anyway.

Whichever route a family takes, each parent gets their own will. A will covers one person.

This is general information, not legal advice. For decisions about your situation, consult a licensed attorney.

Powers of attorney and advance directives

Wills only speak after death. A second set of documents covers the situations where you are alive but cannot act: a serious accident, an illness, an incapacity of any length.

A power of attorney is a document in which one person, the principal, authorizes another person, the agent, to act in their place. The agent does not have to be a lawyer. The scope can be broad or narrow. For financial matters, the version that matters here is the durable power of attorney, because durability is what lets the document keep working if the principal becomes unable to make decisions. A durable financial power of attorney is what allows a partner or trusted person to pay the mortgage, manage accounts, and handle benefits while the principal is incapacitated, without a court proceeding to get that authority.

Advance directives are the health care side. They are legal documents that record your medical decisions ahead of time, and they typically come in two parts. A living will states which treatments you do and do not want if you are dying or permanently unconscious. A durable power of attorney for health care names a health care proxy: the person who makes medical decisions for you when you cannot make them yourself.

For new parents, these documents answer a practical question: if one of you is in a hospital bed, who keeps the household running and who speaks to the doctors. The documents name those people in advance, in writing, in a form institutions recognize. Forms and requirements for directives vary by state, and hospitals and attorneys both work with the state-specific versions.

This is general information, not legal advice. For decisions about your situation, consult a licensed attorney.

Beneficiary designations

This section contains the single most misunderstood fact in family estate planning: for many of your largest assets, the will is not the controlling document.

Life insurance policies, 401(k)s, IRAs, and accounts with transfer-on-death registrations pass by beneficiary designation, the form on file with the insurer or account custodian. Those assets go to the named beneficiary directly, outside the will and outside probate. And when the designation and the will disagree, the designation wins. Investor-education material from FINRA, the securities industry regulator, states it directly: a transfer-on-death plan or other beneficiary document supersedes your will. Its example is blunt. A will that divides brokerage assets equally between two children does nothing if the account's form names only one child; that child alone receives the assets and has no obligation to share.

The practical consequence: a beautifully drafted will sitting on top of stale beneficiary forms produces the stale result. This is why a new baby triggers a sweep of every designation on file, typically covering employer life insurance, any private life insurance, 401(k) or similar workplace retirement accounts, IRAs, HSAs, and any account with a payable-on-death or transfer-on-death registration.

Two specifics matter for parents.

Spouses have protected status in workplace retirement plans. Under federal law, in a 401(k) type plan, the account generally goes to the surviving spouse. Naming anyone else requires the spouse's written consent, signed before a notary or plan representative. Department of Labor guidance also flags the transition case: someone who enrolled while single and later married updates the plan, because the old paperwork no longer matches the law's default.

Minor children cannot receive proceeds directly. Insurance companies do not pay life insurance benefits straight to a minor. A payout naming a young child can sit until a court appoints a custodian to manage the money, which delays the funds precisely when the family needs them. The common structures instead route the money through an adult, such as the other parent, or through a trust with a named trustee who manages it for the child. Which structure fits a given family is exactly the kind of question an attorney resolves alongside the will.

Designations are checked, not just set. Insurers and custodians act on the form they have, so the sweep ends with confirmation copies or screenshots showing what is actually on file.

This is general information, not legal advice. For decisions about your situation, consult a licensed attorney.

Keeping documents findable

A document nobody can find does very little. The executor needs the original will; courts commonly require it. The agent under a power of attorney needs the signed document to show a bank. The health care proxy needs the directive to show a hospital, quickly.

The working pattern is simple. Originals live in one known place: a fireproof box at home, an attorney's vault, or wherever the family chooses, with a note about access. A bank safe deposit box has a known catch: if the only key holder is the person who died, getting the box opened can take time. Copies go to the people named in the documents, so the executor, the nominated guardian, the agents, and the proxy each know they were named and know where the originals are. Health care directives also go to your doctors and, where available, your hospital system's records.

Then the set gets a review rhythm. Births, deaths, marriages, divorces, moves between states, and significant changes in assets are the standard prompts for rereading the documents and confirming the beneficiary forms still match. The documents are built to be boring for years at a stretch. The review is what keeps them that way.

Where the plan comes in

Mothers Plan treats this as what it is: a finite set of tasks with owners and dates. The plan schedules the will and guardianship conversation in the third trimester, lists the beneficiary sweep as its own item with every account type named, and files the "who has copies, where are the originals" note next to your other permanent records. The legal work belongs to a licensed attorney. The tracking, so it actually gets done between now and the birth, is the plan's job.

Sources

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Program details checked against official government sources; last reviewed August 2026. Mothers Plan provides information and organization, not legal, tax, financial, or medical advice.