NJ lease inheriting rights of long term 'guest' of tenant?

[Johann Jells]

A legacy low income tenant who was in the building when I bought it 9 years ago is in the hospital. It makes me think about what to do about his horror show live in girlfriend if he died. She's simply, and clinically, nuts, on SSI. Huge, loud and aggressive, threatened our maintenance people.  I've never accepted money from her, never officially acknowledged her as a tenant in any way, but this is NJ where getting rid of a tenant is notoriously difficult. I imagine one "disabled" and on public assistance even more so.

Does anyone have any actual knowledge of the NJ law regarding this situation? I wish I had a knowledgeable lawyer for this stuff, but honestly most Landlord-Tenant lawyers are bottom feeders. Last time I consulted with one I felt I knew more than she did.  The city Landlord-Tenant office said without specifics in the lease or her being on the lease, she's out of luck. But this being NJ, I'm