A New Jersey lease termination letter (30-day notice) is a document serving as a formal notification by either the landlord or tenant, signaling their intention to end the tenancy at a given property with a 30-day notice period. Governing Law — NJSA 2A:18-56. Required Notice Period — 30 days Tenancy Length — Less than 1 year. Download: PDF and Word. Related Forms 30-Day Notice to Pay Rent or Quit 30-Day Notice to Quit for Non-Compliance