I was just trying to find something about transfering out of state titles but im not sure. I would call the NYS DMV
Not sure if he signed the title to you and you came to NYS with it if they can cross check and do that.
I’d imagine it might be possible but I would transfer it to your name in NJ then transfer here in NYS… AFAIK titling an out of state vehicle in NYS just ends up being like any normal process, walk in… fill out paperwork , get registration and wait 4 weeks for a new title.