Can I adopt my stepparent as an adult in Arizona?

If you mean “Can my stepparent become my legal parent now that I am an adult?”, your stepparent is the adopting person and you are the proposed adoptee. If you literally mean that you would adopt your stepparent, those roles reverse. Arizona eligibility must be checked against the relationship of the person being adopted to the proposed adopter; the two requests are not interchangeable.

Put the roles in writing

Apply the eligibility categories in the right direction

A.R.S. §14-8101(A) includes an adult who is a current or previous stepchild of the adopting person. In the ordinary first scenario, that describes you in relation to your stepparent. It does not automatically describe your stepparent in relation to you when the roles are reversed.

The statute also lists other relationship categories, an age-based category for a consenting person aged 18 through 21, and a specified former-foster-child route. It does not list “stepparent of the adopting person” as a separate qualifying category. Obtain legal advice if you intend the literal reversed arrangement; do not assume the ordinary stepchild rule authorizes it or that every conceivable arrangement is categorically forbidden.

Use the Arizona eligibility guide to organize the actual facts. An older adult stepchild's age does not by itself exclude the person from the stepchild category.

Understand the relationship you are creating

Section B requires a written agreement to assume the legal relation of parent and child, with its rights, duties and responsibilities. The court approves the agreement through a decree. This is a legal change, not just a certificate honoring a longstanding bond.

Identify the effects you want to achieve. Review existing wills, trusts, beneficiary arrangements and care authorizations with an appropriate professional. Do not assume an adoption automatically gives every desired medical or financial power or rewrites every existing document.

Check agreement, spouse consent and notice

The adopting person and proposed adoptee sign the agreement. Section C separately addresses applicable consent from the spouses of both parties. Natural-parent consent is unnecessary, but section D permits court-ordered notice and objections by interested people. Read the consent-and-notice guide before relying on a “no other involvement” promise.

If someone cannot consent or an existing order creates uncertainty, obtain legal help. Do not simply switch the adopter and adoptee labels to avoid a requirement.

Follow the actual court review

The petition identifies the relationship and reasons, relevant family information and prior adult adoptions. The court-designated report, possible additional investigation, hearing and best-interests decision remain important. The Arizona process guide explains those stages without promising a fixed finalization time.

The Maricopa County court's adult-adoption forms identify the adopter and adoptee separately and include both parties' agreement signatures. Keep the correct roles consistent in the agreement, petition, consents and proposed order. Ask about any conflicting record before filing instead of assuming a later signature will fix it.

Describe the intended result before ordering

Write one sentence naming who would become whose legal parent. Bring that sentence, both parties' ages, the actual relationship and marital circumstances to the preparer or attorney. Use the representation guide if the legal basis is uncertain, or start the Arizona adult questionnaire for the ordinary eligible arrangement. A different jurisdiction needs its own law, such as the Texas adult-adoption process.