Paternity Fraud in New Mexico: How to Rescind an Acknowledgment of Paternity (AOP)

Signing an Acknowledgment of Paternity (AOP) at the hospital is a profound and joyous moment. However, discovering later that the child is not biologically yours is devastating. Paternity fraud occurs when a mother knowingly misleads a man into believing he is the biological father so that he signs the AOP and takes on legal and financial responsibilities. Disestablishing paternity in New Mexico is a complex legal battle with very strict deadlines. If you suspect you are the victim of paternity fraud, it is crucial to act immediately. We recommend utilizing our directory of US Lawyers to find a seasoned local attorney who can guide you through the process of challenging an AOP.

The 60-Day Rescission Window in New Mexico

New Mexico law is very rigid regarding voluntary acknowledgments. Under N.M. Stat. Ann. § 40-11A-307, any signatory to an AOP (either the mother or the man who signed as the father) has the right to rescind the acknowledgment within 60 days of the effective date of the document, or before the date of the first court hearing relating to the child, whichever happens first. Unlike states that offer an administrative withdrawal form, New Mexico requires you to initiate a judicial proceeding in District Court to rescind the AOP. During this 60-day window, you do not need to prove fraud, duress, or mistake of fact.

Statute of Limitations for Paternity Fraud (After 60 Days)

Once the 60-day window expires, the AOP becomes a binding legal judgment of paternity under state law. You can no longer simply fill out a form to back out. Instead, you must file a formal lawsuit to challenge the acknowledgment under N.M. Stat. Ann. § 40-11A-308.

Proving Fraud, Duress, or Material Mistake of Fact

To successfully disestablish paternity after the 60 days have passed, you carry the burden of proof. You must prove to a judge in a court like the Third Judicial District Court, Las Cruces or the Fifth Judicial District Court, Roswell that your signature was obtained through:

• Fraud: The mother knew you were not the father but intentionally lied to you to secure your signature.
• Duress: You were forced or severely threatened into signing the document against your will.
• Material Mistake of Fact: Both you and the mother genuinely believed you were the father, but later DNA evidence proved otherwise.

Crucially, under N.M. Stat. Ann. § 40-11A-308, a challenge to an AOP after the 60-day rescission period must be commenced within two years after the acknowledgment is filed with the vital statistics bureau. Precedents such as Tedford v. Gregory, 125 N.M. 206 (NM Court of Appeals 1998) highlight how strictly New Mexico courts evaluate statutory standards and timelines when parties seek to challenge or reopen established parentage determinations.

How to File a Motion to Disestablish Paternity

If you have missed the 60-day window, you will need to engage in litigation to remove your name from the birth certificate and stop child support obligations.

Step 1: Gather Evidence of Fraud

Before heading to court, compile any evidence suggesting deceit. This includes text messages, emails, or witness testimonies where the mother admits another man might be the father. If you have obtained a private DNA test, include those results, even though you will need a court-ordered test later.

Step 2: File the Petition in District Court

Your attorney will draft and file a formal legal proceeding to challenge the acknowledgment under N.M. Stat. Ann. § 40-11A-308 in the local District Court, typically using Form 4A-402, New Mexico, District Court, Petition to Establish Parentage or a motion for relief from judgment under Rule 1-060(B) NMRA. The mother will be served and given an opportunity to respond.

Step 3: Attend the Hearing and Mandate DNA Testing

At the hearing, your lawyer will argue that fraud occurred. The judge will typically order a legally binding, chain-of-custody DNA test. If the results prove a 0% probability of paternity, the judge may issue an order disestablishing you as the legal father, effectively ending your future legal obligations to the child.

Can You Get a Refund for Past Child Support?

A common and painful question for victims of paternity fraud is whether they can recoup the thousands of dollars paid in child support. Unfortunately, in New Mexico, courts generally do not order retroactive refunds for past child support paid before the AOP was officially challenged. The legal reasoning is that child support is intended for the immediate benefit and survival of the child, and that money has already been spent on the child's care. However, successfully disestablishing paternity will stop all future child support payments.

Costs and Timelines

Filing a challenge based on fraud is a full civil litigation process.

The entire timeline, from filing the petition to receiving the final judge's order disestablishing paternity, can take anywhere from 4 to 8 months, heavily depending on how fiercely the mother contests the fraud allegations.

Frequently Asked Questions (FAQ)