NJ Owner Occupied rule for clearing tenants

[David Kimball]

I understand that in NJ you can vacant a 1-3 unit home upon your move in date by stating that you intend to move in. How is your move in defined or tracked? What is the minimum time you have to live there? A year?
Say the minimum is more like a year, can you get around this by just subletting your unit for that time using a sublet agreement or guest agreement or having "roommates"?
How is this different for an REO property?
Thanks greatly.