It depends on when the sale takes place. If you sell so that you will have used the home for at least two years within the five years before the sale, you will be able to take the exclusion. If it takes a long time to sell and you are no longer using the New York home as your residence, you may be out of luck.
Casualty losses such as from a storm, in areas declared by the President to warrant federal assistance. An election may be made to deduct the loss in the year before the loss or the year of the loss.