Legal residency means moving to a place with an intention to remain there. So - you move, you get accounts such as Con Ed and telephone there, get a drivers license showing an address...
Under the rules governing the conduct of attorneys in New York it may be necessary to remind you that this answer could be considered attorney advertising.
You pretty much answered your question. If you have state issued identification reach out to DMV and file an address change reflecting your current NYC address. Contact your son's landlord or building manager and get added to the lease. Since the first of the month is nearing you may want to start today. If you're registered to vote, update your voters registration it's not hard to do.
As we don't know enough about your case, you should not consider my answer to be legal advice. You would need to consult with an attorney at length and include details about what has occurred in order to adequately assess your criminal exposure. Also, I am licensed in the state of New York only. If this is a federal case, provided more information were given, we could give you a better idea of the sentencing range. If it is state only, you will need an attorney licensed in your jurisdiction to address this.
Simply moving to NYC will allow you to change your "venue" to NYC. Residency is more a matter of what state you reside in, rather than which city in that state. You can work with a NYC attorney whether you reside in NYC or not. However, the question is whether you can file an enforcement proceeding against your ex in a county other than the one you were divorced in. Unless, of course, this suit you are planning against your ex has nothing to do with your divorce, in which case you can file in the county in which you reside.
I am an attorney with over a decade of experience in Matrimonial and Family Law with offices in Brooklyn and Manhattan. I have experience in all five boroughs as well is Nassau and Suffolk County. The opinion expressed in this ad based upon the limited information provided and do not indicate an attorney-client relationship
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