first time buyer can not transfer title

hello everybody . i bought a used truck from owner operator in new jersey last week. i wend to motor vehicle commission(dmv) , the lady at the desk told me i can't transfer the title under my name yet , because it still show IRP in the system under the title . so i called the owner he said he already returned his plated and he faxed to irp office to cancel his IRP. today i went to dmv again its still shown IRP Under the title, i have no xxxxxxxx clue whats going on . im really getting frustrated. so my fellow drivers can u guys help me out here whats going on here . and how can i transfer the title ASAP. THANKS IN ADVANCE. KEEP TRUCKING

 

i heard that as long as the irp account is not canceled from previous owner it will still show that so i think it might take some days to clear

 

i was plannig on doing that but if the owner says he doesn't have time to go the irp office with me, i guess im gonnna have to hire a lawyer

 

Then why can't I transfer my title if Irp hasnothing to do with title. DMV keep telling me it has to do IRP . So anyway should I call back the seller and tell them to show transfer of ownership and how should they do that?