A New Jersey Sublet Agreement is, rather than a lease in its own right, an add on to an existing lease that lets the current tenant (known as the sublessor) rent out all or part of their property to another party (known as the sublessee). This is most often used when the tenant wishes to vacate the property before their lease has ended, or wishes to acquire a roommate after the original lease.
New Jersey, like most states, has no laws on the book regarding subletting, so all of the rules specific to the lease will be contained within the lease itself. Unless the lease specifically allows subletting, the sublessor must obtain written permission from the landlord to sublease.
A sublessor should be exceptionally careful before signing a sublease agreement. No matter what the terms of the sublease agreement is, the sublessor is still required to ensure the terms of the original lease are maintained. If the sublessee violates the lease, the sublessor may be required to evict them. The sublessor will want to know the sublessee very well and may want them to fill out a Rental Application Form.
As there are no laws in New Jersey governing subletting, a sublease agreement will be subject to all the same laws as a normal lease agreement. In New Jersey, these can be found in New Jersey Code Annotated, Title 46-8.