How Do I Get Guardianship of an Elderly Parent?

By Chad Foster, Family Law Attorney · Updated July 16, 2026

Watching a parent lose the ability to manage their own affairs is painful, and the instinct to step in and protect them is a good one. In Washington, though, taking over legally is a court process with a high bar, and it is not always the right first step.

What Guardianship Means

Guardianship is a legal arrangement in which a court gives one person the authority to make decisions for an adult who can no longer make those decisions safely. In Washington, this falls under the Uniform Guardianship, Conservatorship, and Other Protective Arrangements Act, chapter 11.130 RCW, which took effect on January 1, 2022. It is a serious step, because it involves a court removing decision-making rights from an adult and handing them to someone else. For that reason, the law surrounds the process with protections.

It also helps to know at the outset that guardianship is not a single, all-or-nothing thing. The law allows for limited guardianships tailored to what the person actually needs, and it favors preserving as much of the person's independence as possible. So even when some help is clearly warranted, the court aims to restrict only what must be restricted.

Guardian of the Person Versus Conservator of the Finances

One of the first distinctions to understand is between a guardian and a conservator, because families often need one, the other, or both. Under RCW 11.130.010, a guardian is a person appointed by the court to make decisions about an individual's personal affairs, things like housing, medical care, and daily living. A conservator, by contrast, is a person appointed to make decisions about an individual's property and financial affairs, such as managing bank accounts, paying bills, and handling assets.

An aging parent who can no longer manage either area might need both a guardian and a conservator, and the same person often serves in both roles. But the two appointments answer different questions, one about the person and one about the money, and a court considers each on its own terms.

Guardian, Conservator, or Neither?

Washington favors the least restrictive path (Ch. 11.130 RCW).

Guardian

The person

Decisions about housing, medical care, and daily living for a parent who cannot make them safely.

Conservator

The finances

Managing bank accounts, bills, and assets. Often the same person serves in both roles.

Less restrictive

Try this first

A durable power of attorney signed while your parent still has capacity can avoid a court case entirely.

The High Bar the Court Must Find

If you petition to become guardian of an elderly parent, you are asking the court to make specific findings, and the standard is demanding. Under RCW 11.130.265, a court may appoint a guardian for an adult only if it finds, by clear and convincing evidence, three things. First, that your parent lacks the ability to meet essential requirements for physical health, safety, or self-care because they are unable to receive and evaluate information or make or communicate decisions, even with appropriate supportive services, technological assistance, or supported decision making. Second, that the appointment is necessary to prevent significant risk of harm to your parent's physical health, safety, or self-care. Third, that your parent's needs cannot be met by a less restrictive alternative.

"Clear and convincing evidence" is a high standard, above the ordinary standard used in most civil cases. The statute goes further to protect against overreach: it states plainly that age, eccentricity, poverty, or a medical diagnosis alone are not enough to justify appointing a guardian. A determination that guardianship is warranted is a legal decision, not simply a medical one, and it must rest on a demonstration of management difficulties over time. In other words, the fact that your parent is elderly, or forgetful, or has received a particular diagnosis, does not by itself open the door to guardianship. The court needs real evidence that your parent cannot safely manage and that significant harm is at risk.

The Process in Broad Strokes

Pursuing guardianship starts with filing a petition in the superior court, which for local families would typically be the Snohomish County Superior Court. Your parent, referred to in the statute as the respondent, is entitled to notice and to a hearing, and the court will often appoint a court visitor to look into the situation and report back. Your parent has rights throughout, including rights concerning representation. The court then holds a hearing and, only if the demanding findings are met, appoints a guardian with the specific powers that the situation actually requires, no more. After appointment, the guardian remains subject to ongoing court oversight.

This is a deliberate, careful process, and it can take time and expense. That is by design, because the stakes for your parent's autonomy are high. But it also means guardianship is not a fast fix, which is exactly why the law wants families to consider whether a lighter-touch option would work first.

The Less Restrictive Alternatives to Consider First

The same statute that sets the bar for guardianship requires the court to consider whether a less restrictive alternative would meet your parent's needs, and to decline guardianship if one would. RCW 11.130.010 spells out that less restrictive alternatives include supported decision making, appropriate technological assistance, appointment of a representative payee, and the appointment of an agent under a power of attorney for health care or for finances.

This last point is the one families most often wish they had known sooner. If your parent, while still capable, signs a durable power of attorney naming you or another trusted person as agent, that document can let you manage their affairs without any guardianship at all. It is faster, less expensive, more private, and less intrusive than a court proceeding. When a parent still has the capacity to sign such documents, exploring that route first is very often the wiser path. Guardianship then becomes the tool for situations where capacity has already declined too far for planning, or where no adequate alternative exists.

Getting Guidance for Your Family

Deciding whether to pursue guardianship, or whether a power of attorney or other alternative would better serve your parent, is a decision that benefits from careful, individualized advice. Every family's situation is different, and the right answer depends on your parent's condition, the documents already in place, and what protection is genuinely needed.

If you are worried about an aging parent in Snohomish County and are not sure what step to take, the Law Office of Chad Foster can help you understand your options and choose the least intrusive path that keeps your parent safe. Reach out whenever you would like to talk it through.