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A.R.S. § 14-8101

Adult Adoption in Arizona: Who Can Adopt and How It Works

Verified April 4, 2026 • 57th Legislature, 1st Regular Session

Arizona allows one adult to legally adopt another adult in specific circumstances. The adoption requires a written agreement, court approval, and in most cases, spousal consent from both parties. The court must determine that the adoption serves the best interests of everyone involved and the public.

Title 14, ADULT ADOPTION

azleg.gov

Who Qualifies for Adult Adoption

Adult adoption in Arizona is not open-ended. The statute limits who can be adopted to specific categories: adults between 18 and 21 who consent, or adults of any age who are a current or previous stepchild, niece, nephew, cousin, or grandchild of the adopting person. Foster parents may also adopt a former foster child if they maintained a continuous family relationship for five or more years.

Any adult person may adopt either another adult person who is at least eighteen years of age and not more than twenty-one years of age and who consents to the adoption or another adult person who is a current or previous stepchild or a niece, nephew, cousin or grandchild of the adopting person, by an agreement of adoption approved by a decree of adoption of the court in the county in which either the person adopting or the person adopted resides.

A.R.S. § 14-8101(A)

The written agreement must state that both parties agree to take on the legal relationship of parent and child, with all the rights and responsibilities that come with it.

Court Approval and Spousal Consent

Adult adoption is not automatic. Both parties must appear in court (or send an attorney with written authorization), and a court-designated investigator submits a written report on the welfare and best interests of everyone involved. The court then decides whether the adoption serves the best interests of the parties and the public.

A married person who is not legally separated from that person's spouse cannot adopt an adult person without the consent of the spouse of the adopting person if the spouse is capable of giving the consent.

A.R.S. § 14-8101(C)

One notable feature: the consent of the biological parents is not required. This distinguishes adult adoption from the adoption of minors, where parental rights are a central consideration. For estate planning purposes, adult adoption creates a legal parent-child relationship that can affect inheritance rights, making it an important tool in certain family situations.

14-8101. Adult adoption; agreement; consent of spouse; court procedure; petition A. Any adult person may adopt either another adult person who is at least eighteen years of age and not more than twenty-one years of age and who consents to the adoption or another adult person who is a current or previous stepchild or a niece, nephew, cousin or grandchild of the adopting person, by an agreement of adoption approved by a decree of adoption of the court in the county in which either the person adopting or the person adopted resides. A foster parent may adopt an adult who was placed in the foster parent's care when the adult was a juvenile if the foster parent has maintained a continuous familial relationship with that person for five or more years. B. The agreement of adoption shall be in writing, shall be executed by the person adopting the person to be adopted and shall state that the parties agree to assume toward each other the legal relation of parent and child and to have all of the rights and to be subject to all of the duties and responsibilities of that relation. C. A married person who is not legally separated from that person's spouse cannot adopt an adult person without the consent of the spouse of the adopting person if the spouse is capable of giving the consent. A married person who is not legally separated from that person's spouse cannot be adopted without the consent of the spouse of the person to be adopted if the spouse is capable of giving that consent. Neither the consent of the natural parent or parents of the person to be adopted, of the division nor of any other person is required. D. The adopting person and the person to be adopted may file in the court in the county in which either resides a petition for a decree of adoption. The court shall assign the case to a division of the superior court that shall fix a time and place for a hearing on the petition. Both the person adopting and the person to be adopted shall appear at the hearing in person. An attorney may appear on behalf of a person who is not able to appear if the attorney has that person's written authorization. The court may require notice of the time and place of the hearing to be served on any other interested persons. Any interested person may appear and object to the proposed adoption. Before the hearing, a person designated by the court shall submit a written report concerning information that person gathers by observation or investigation regarding the welfare, competency and best interests of the parties and the public. The court in its discretion may require additional investigation if it finds that the welfare of the proposed adoptee will be served or if additional information is necessary to make an appropriate decision regarding the adoption. E. At the hearing the court shall examine the parties or the attorney of any party who is not present. If the court determines that the adoption will be for the best interests of the parties and in the public interest, the court shall approve the agreement of adoption and make a decree of adoption declaring that the person adopted is the child of the adopting person. If the court determines that the adoption is not in the best interests of the parties and the public interest, the court shall deny the petition for adoption. F. The petition for adoption shall state: 1. The length and nature of the relationship between the person seeking to adopt and the proposed adoptee. 2. The degree of kinship, if any. 3. The reason the adoption is sought, together with a statement as to why the adoption would be in the best interests of the person seeking to adopt, the proposed adoptee and the public. 4. The names and addresses of any living parents or adult children of the proposed adoptee. 5. Whether the person seeking to adopt or that person's spouse has previously adopted any other adult person and, if so, the name of the person with the date and place of the adoption. G. In determining whether or not the adoption of any person is in the public interest or the best interests of the persons seeking the adoption, the court may consider evidence without regard to the rules of evidence.
View on azleg.gov

This page provides general legal information about Arizona statutes and is not legal advice. For guidance on how this law applies to your situation, speak with a qualified attorney.

Related Questions

What documents are included in a basic estate plan?

A basic estate plan in Arizona typically includes a Last Will or Living Trust, Financial Power of Attorney, Healthcare Power of Attorney, Living Will, and sometimes a Pour-Over Will.

How does estate planning work for blended families and second marriages?

Blended families need intentional planning because default legal rules often do not match your wishes. A trust can provide for a surviving spouse while protecting your children from a previous marriage.

What happens if I die without a will in Arizona?

Without a will in Arizona, your assets are distributed according to state intestacy laws. The court decides who receives your property using a fixed formula based on family relationships.

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