N.J. Stat. § 3B:23-4
After the probable charges against the estate are known, the personal representative may mail or deliver a proposal for distribution to all persons who have a right to object to the proposed distribution. The proposal shall notify all persons who have a right to object to the proposal of their right to object and that their objection must be in writing and received by the personal representative within 30 days after the mailing or delivery of the proposal. The right of any distributee to object to the proposed distribution on the basis of the kind or value of asset he is to receive, if not waived earlier in writing, terminates if he fails to object in writing received by the personal representative within 30 days after mailing or delivery of the proposal.
N.J.S. § 3B:23-4