N.J. Stat. Ann. § 42:2A-41

Withdrawal of limited partner. A limited partner may withdraw from a limited partnership at the time or upon the happening of events specified in the certificate of limited partnership and in accordance with the partnership agreement. If the certificate does not specify the time or the events upon the happening of which a limited partner may withdraw or a definite time for the dissolution and winding up of the limited partnership, a limited partner may withdraw upon not less than six months' prior written notice to each general partner at the address set forth in the certificate of limited partnership.