how do i become exectutor of a will in nj

you should first get a copy of the will and make sure that it was admitted to prbate in the county in which the decedent lived.  If it is Monmouth or Ocean Counties in New Jersey, I can help you with that.  You can demand an accoutning of the estate, and if time deadlines have passed for the executor to tae action and he/she has not done what is required, the executor can be removed.