Can my preferential rent be taken away?

I have lived the basement apt of a rent stabilized building for 8 years. The apt I occupy is intended for the super of the building but the previous landlord placed the super inside one of the apts inside the building. When I signed my first least it came with a rider saying I would keep my preferential rent because of the agreement I was signing and it was legally the supers apt. I now have a new landlord and he not only has raised my rent retroactively which he is not supposed to do but he is telling me that he can take my preferential rent from me because the amount of rent i pay is extremely low for my size apartment that today goes for $1600.00. I live in Morris Heights Bronx NY, which is not the best part of the Bronx. It is a small 2 br basement apartment which is supposed to be occupied by the super according to the building. I currently am paying $1195 with his retroactive rent raise AND this year it is at a 0% increase for 1 year lease he is trying to raise my rent again.