There is nothing you can do at this point. The law presumes a child born to a married couple is the husband's. A challenge to this presumption must occur within the first few years of the child's life.
If the child knows your the biological parent, and since child is an adult you can reach out to the individual on your own. If the individual is willing you can establish a relationship moving forward. There is no legal restriction for you to re unite with the child.
This communication is not intended as legal advice. A local attorney should always be consulted for legal advice. No client/attorney relationship is intended or created by this communication.
She has no control over whether you contact the boy. This is now between you and your alleged son. She said she knew when the boy was 10. The only way to know for sure is a DNA test. What you really have is a strong suspicion at this point. I know this is difficult, but would you have insisted on a paternity test illegitimizing him when he was 10. The man that raised him would not have willingly given him up.
DISCLAIMER: Answers from Experts on JustAnswer are not substitutes for the advice of an attorney. JustAnswer is a public forum and questions and responses are not private or confidential or protected by the attorney-client privilege. The Expert above is not your attorney, and the response above is not legal advice. You should not read this response to propose specific action or address specific circumstances, but only to give you a sense of general principles of law that might affect the situation you describe. Application of these general principles to particular circumstances must be done by a lawyer who has spoken with you in confidence, learned all relevant information, and explored various options. Before acting on these general principles, you should hire a lawyer licensed to practice law in the jurisdiction to which your question pertains.
The responses above are from individual Experts, not JustAnswer. The site and services are provided “as is”. To view the verified credential of an Expert, click on the “Verified” symbol in the Expert’s profile. This site is not for emergency questions which should be directed immediately by telephone or in-person to qualified professionals. Please carefully read the Terms of Service (last updated February 8, 2012).