I think as Wayne said you can add a new roommate and amend the existing lease with an addendum.I would also screen the new roommate and make the addition of this roommate contingent upon him passing your screening.Also will have to make it clear to your tenant and new roommate that once he is added he inherits "everything".If your current tenant has damaged a wall or soiled the carpet prior to the roommate's occupancy, this roommate is now liable to these damages.

And look for damp soil conditions around the outside of the house. 

It is exposed to the elements and is just soil?

It was not disclosed to her when she bought it that it had some soil compaction issues and the foundation had some cracking.

No matter whether it is petty theft, your groceries out of the back of your vehicle or buying a beautiful condo overlooking a white sandy beach on the ocean. 

NJ is in a state of flux if you ask me with the oustanding foreclosures and Hurricane Sandy so would be interested to hear from current property owners.

Okay, G buys a dumper for 12k, puts lipstick on and makes repairs, 5K, puts Sandy the scammer in, pays 500 in rents (but he gets most or all back) sells for 35K that works out to good ROI, fakes docs.

Sandy did a job on the Jersey Shore and you are pretty close to the area; you might explore some rehabs and flips in that area.

Thanks for the quick reply Sandy!!

Has to do with the soil.