Can I bring a person with me for support?

There are two rooms. A support person can wait in the waiting room, they just can't go in the "weed" room. So yes & no..

Yes

You can add them as a care provider through the NJMMP website AND THEN they can come in with you and I think they may be able to even buy on your behalf, not sure on the second part.

Not in were they have any Cannabis. Silly law

They can't go in with you unless they have a card