Dear Rabbi Simon,
My wife is temporarily living in Florida. Do I have to light Shabbos candles in New York if my wife lights in Florida?
Thank you for your practical question.
The simple answer is yes, you should light in NY even though your wife is also lighting Shabbos candles where she is (in Florida).
However, there are several considerations which may be relevant or applicable, such as where you are eating the Friday night meal, whether you are on your own or with others for Shabbos, etc. Also note that the earliest time for lighting Shabbos candles (known as Plag ha-Minchah) is close to 6:40pm in NYC this time of year. This can give rise to nuanced halakhic considerations with regard to the timing of Mincha prayers in shul.
Rabbi Rashi Simon