N.J. Stat. § 2A:42-110
Nothing in this act shall limit the legal rights and remedies of a landlord under the lease or the master deed and bylaws, as the case may be, to remove a domesticated animal that constitutes a continuing nuisance to the welfare or property of either the landlord or the other residents of a senior citizen housing project, nor shall it limit the legal rights and remedies of that landlord or other residents.
In any action to remove a domesticated animal or to evict a senior citizen from a senior citizen housing project for violating a lease due to the presence of a domesticated animal that is alleged to be a continuing nuisance, the plaintiff shall have the burden of proving that the domesticated animal is a continuing nuisance.
N.J.S. § 2A:42-110