Petition for Annulment of Void Marriage — Sibling Relationship — Arizona
PETITION FOR ANNULMENT OF VOID MARRIAGE — SIBLING RELATIONSHIP
Before filing: Use this petition only when the spouses are brother and sister of the whole or one-half blood, have no common or adopted minor children, and have no property or debts requiring division. Arizona law treats this sibling marriage as void. Check the receiving superior court's current forms, filing, and service instructions; Maricopa County publishes an annulment packet.
| Court | Case |
|---|---|
| Superior Court of Arizona, [COUNTY] County | Case No. [____________________] |
| [PETITIONER FULL NAME], Petitioner | Petition for Annulment of Void Marriage |
| v. | |
| [RESPONDENT FULL NAME], Respondent |
Petitioner alleges:
Parties and marriage
- Petitioner is [FULL LEGAL NAME], whose address for court notices is [ADDRESS]. Respondent is [FULL LEGAL NAME], whose address or last known address is [ADDRESS].
- The parties participated in a marriage ceremony on [DATE] in [CITY, STATE OR COUNTRY]. The marriage record is [IDENTIFY RECORD OR EXHIBIT].
- This petition is filed in [COUNTY] County because [STATE FACTS SUPPORTING FILING IN THIS COUNTY].
Arizona jurisdiction
- For at least 90 days before filing this petition, ☐ Petitioner ☐ Respondent was ☐ domiciled in Arizona ☐ stationed in Arizona while a member of the armed services. The facts showing that domicile or military presence, including dates, are [STATE FACTS]. A.R.S. §§ 25-302(A), 25-312(A)(1).
Impediment that made the marriage void
- When the marriage ceremony occurred, Petitioner and Respondent were brother and sister of the ☐ whole blood ☐ one-half blood. Their common parent or parents are [IDENTIFY], and the supporting facts or records are [DESCRIBE].
- The sibling relationship existed at the time of the marriage and remains the ground asserted in this petition. A.R.S. § 25-101(A) makes a marriage between brothers and sisters of the whole or one-half blood prohibited and void. Under A.R.S. § 25-301, Petitioner asks the Superior Court to adjudge this marriage null and void because that relationship was an impediment rendering it void.
Children, property, and debts
- The parties have no common or adopted minor children and no pregnancy involving both parties. [STATE FACTS OR IDENTIFY ANY CORRECTION NEEDED BEFORE FILING].
- The parties have no property or debts requiring division in this action. [STATE FACTS OR IDENTIFY ANY CORRECTION NEEDED BEFORE FILING].
Relief requested
Petitioner asks the Court to:
- Find that the sibling relationship described above existed when the marriage ceremony occurred and made the marriage void under A.R.S. § 25-101(A).
- Enter a decree adjudging the marriage null and void under A.R.S. § 25-301.
- Grant only further relief supported by the facts pleaded here and applicable law: [SPECIFY OR WRITE “NONE”].
Respectfully submitted,
Signature: ________________________________________ Date: [__/__/____]
Printed name: [________________________________________]
Address for court notices: [________________________________________]
Telephone: [____________________] Email: [____________________]
Attorney and bar number, if represented: [________________________________________]
Sources and references
About this template
- Last updated
- October 16, 2026
- Citations checked
- October 16, 2026
- Jurisdiction
- Arizona
- Category
- Family Law
Legal authority
- A.R.S. § 25-101(A) (marriage between siblings prohibited and void)
- A.R.S. § 25-301 (annulment of marriage void because of an impediment)
- A.R.S. § 25-302 (annulment jurisdiction and procedure)
- A.R.S. § 25-312(A)(1) (Arizona domicile or military presence for 90 days)
Family law covers the paperwork that shapes divorce, custody, child support, adoption, guardianship, and other family matters. These filings are emotional and high-stakes, and they also have to meet strict procedural rules for service, financial disclosure, and parenting plans. Clean, accurate paperwork keeps the focus on getting a workable outcome for the family instead of getting derailed by technical problems that delay hearings or force amended filings.
Not legal advice
This template is provided for informational purposes. We recommend having an attorney review any legal document before signing, especially for high-value or complex matters.
Checked against the law it cites
A reviewer verified this template's legal citations against the official source on October 16, 2026.
A.R.S. § 25-101(A) (checked October 16, 2026): "Marriage between parents and children, including grandparents and grandchildren of every degree, between brothers and sisters of the one-half as well as the whole blood, and between uncles and nieces, aunts and nephews and between first cousins, is prohibited and void."
A.R.S. § 25-301 (checked October 16, 2026): "Superior courts may dissolve a marriage, and may adjudge a marriage to be null and void when the cause alleged constitutes an impediment rendering the marriage void."
A.R.S. § 25-302 (checked October 16, 2026): "The jurisdictional requirements and procedure for obtaining an annulment shall be the same as if the matter were one for dissolution of marriage."
A.R.S. § 25-312(A)(1) (checked October 16, 2026): "That one of the parties, at the time the action was commenced, was domiciled in this state or was stationed in this state while a member of the armed services and that in either case the domicile or military presence has been maintained for ninety days before filing the petition for dissolution of marriage."
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