It is not a crime to date a girl over age 16, as that is he age of consent. If you commit a crime in her presence that is a different matter. As to what that state considers illegal, you should ask a lawyer in that state a more specific question. Her parents cannot just have you arrested because they do not approve of you, but they could still cause you trouble if they make a false complaint or if you commit a crime.
I suggest you repost in thee NH Avvo section.
I am a former federal and State prosecutor and now handle criminal defense and personal injury/civil rights cases. Feel free to check out my web site and contact me at (212) 577-9797 or via email at Eric@RothsteinLawNY.com. I was named to the Super Lawyers list as one of the top attorneys in New York for 2012. No more than 5 percent of the lawyers in the state are selected by Super Lawyers. The above answer is for informational purposes only and not meant as legal advice.
You won't fnd too many NY attorneys also license in NH, so try under that rubric.
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