Sorry, I don't know about New Jersey but I would recommend that you do a search for your local Dermatologists. Most of them are doing Laser hair removal now and even Primary Care Doctors as well (your General Practicioner). That's who I went to when I got my hair removal done. They are a bit more expensive than a center or spa but the results are amazing (usually because they use top of the line laser treatment equipment..... not all machines are the same)...My Doctor used the "Cool Glide" machine and I love my results. As Doctors they have a lot to lose if they burn your skin or you get freckles as a side effect (this happened to my sister, she went to a medi-spa instead). I mean, this could happen anywhere but I feel Doctors are more careful because their reputation is on the line. In addition, they are better trained. A Medi-Spa thechnician is here today, gone tomorrow. If you have any scarring, or damage who's responsible?
Good Luck!