An older man and a younger man sit at a desk in a warm, sunlit office, smiling while discussing legal options for adulthood. The older man points to a whiteboard illustrating a flowchart of paths labeled "Options,"

March 23, 2026

Author: 

Liz Yoder, CFP®

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Caring for Your Adult Child: How to Navigate the Legal Guardianship Process

As a Special Needs Certified Financial Planner®, I often walk with families through the many milestones of life. One of the biggest transitions happens when your child turns 18. In the eyes of the law, 18 is the "magic number" where every individual—regardless of their disability—becomes a legal adult. This means that, suddenly, parents no longer have the automatic right to make medical, legal, or financial decisions for their child.

If your adult child has a disability that prevents them from making safe or informed choices, you may need to look into legal guardianship. This is a court process that gives another person (the guardian) the authority to act on their behalf.

Why Does Age 18 Change Everything?

When your child is a minor, you are their natural guardian. You sign for their doctor visits and manage their school plans. However, once they hit adulthood, those rights stop. Doctors may tell you they cannot share information because of privacy laws (HIPAA), and banks may not let you access their accounts.

This can be a scary realization for parents. To keep protecting your child, you must prove to a court that your child needs help managing their life. This is where the legal process of guardianship comes in.

If you are approaching your child's 18th birthday and feel unprepared for this shift, I am here to help. Please contact me today for a CFP® consultation so we can ensure your child’s transition to adulthood is smooth and secure.

Looking for the "Least Restrictive" Option

Before a judge grants guardianship, they want to know if there is a simpler way to help. Guardianship is a big deal because it takes away a person’s right to make their own choices. Courts prefer using the "least restrictive alternative" whenever possible.

Power of Attorney and Healthcare Proxies

If your adult child can understand what it means to sign a contract, they might be able to sign a Power of Attorney (POA). This allows them to choose you to help with money or health decisions without a court getting involved.

Supported Decision-Making

This is a newer idea where your child keeps all their rights but has a team of "supporters" (like you) to help them understand choices. It’s like having a group of advisors for life’s big decisions.

Deciding between a Power of Attorney and full Guardianship is a major financial and legal choice. Let's discuss which path fits your child’s abilities and your family's long-term goals.

The Step-by-Step Guardianship Process

If alternatives won't work and your child needs the protection of a guardian, you will need to go through the court. While every state is a little different, the steps usually look like this:

  1. Filing the Petition: You (or a lawyer) file paperwork with the court asking to be the guardian.
  2. The Medical Evaluation: A doctor or psychologist must examine your adult child and write a report explaining why they cannot make their own decisions.
  3. The Court Representative: The court will often appoint a "Guardian ad Litem" or a court visitor. This person meets with your child to make sure their rights are being protected.
  4. The Hearing: A judge will listen to the evidence. If the judge agrees that guardianship is necessary, they will sign an order naming you as the guardian.

Life as a Legal Guardian

Once you are appointed, your job is to act in your child’s best interest. However, you aren't just "the parent" anymore; you are an officer of the court. This means you have ongoing responsibilities:

  • Annual Reports: Most states require you to send a report to the court every year. You might have to explain how your child is doing, where they are living, and how you spent their money.
  • Court Permission: For very big decisions, like selling your child’s property or moving them to a different state, you might need to ask the judge for permission first.

As a financial planner, I help my clients organize their records so these annual reports are easy to finish. Keeping clean financial records is essential when you are managing someone else’s money.

Becoming a guardian is a powerful way to protect your adult child, but it is just one part of a complete special needs plan. Click here to schedule a meeting with a Special Needs Certified Financial Planner® so we can coordinate your legal protections with your financial future.

Contact Our Special Needs Certified Financial Planners® Professionals