Please see this link for more details on who is qualified as an authorized representative. The types of people in this situation would typically be those who are authorized to speak to the IRS on your behalf though.
As far as tax preparers, that would depend upon who you utilized to prepare your return and the type of services offered. I'm unaware of any that would offer the use of their address for mail services but you would have to directly reach out to that person or company directly to confirm.
As HollyP mentioned above, contacting the New Jersey Department of Taxation would be the best way to officially confirm what type of address they will accept.
@Early
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