While there are places that a person can live fairly comfortably, year around but NY is not one of them. Very few RVs are well enough insulated to be warm in a NY winter and to keep one that warm will cost a great deal for propane and other expenses. Even the largest RV made will have less than 400 square feet of living space, including all of the inside storage. Only the most expensive RVs come even close to the insulation values of a typical home in NY. A large RV of highest quality can easily cost you $100,000 or more and annual maintenance is even more critical for one than for a house. To live in one spot in an RV is possible, but it will become a matter of survival and both difficult and expensive.
We took an early retirement, sold our house, and lived in our RV for the next 12 years but we did so by spending summers far to the north and winters in the deep south so that we were able to spend a great deal of our time outdoors, under the awning or doing outdoor activities. On the rare occasion that we experienced temperatures below freezing for more than an occasional night, we did burn a lot of propane as well as using an electric heater to keep things comfortable and plumbing from freezing. If weather stayed too cold or too hot, we simply moved somewhere with better weather. If you work for a living, that is not practical.