You wont have jurisdiction in FM for a year. But, you could file an FD for support and other relief. The controlling language for FD jurisdiction is below.
Tom King
Establishing State Jurisdiction and County Venue
Rule 5:2-1. Venue, where laid in family actions shall be laid in accordance with the
applicable provision of R. 3:14-1 and R. 4:3-2. except as follows:
(a) In actions primarily involving the welfare, support, protection and status of
children (except actions for adoption or termination of parental rights and except
actions in which issues of custody, visitation and support are joined with claims for
divorce or nullity) shall be laid in the county in which the child is domiciled. In
actions involving custody of children where one party or the child does not
presently reside in New Jersey, venue shall be laid in the county designated by the
courts of the child's home state, which is defined as the state where the child,
immediately preceding the time involved, lived with his or her parents, a parent, or
person acting as parent, for at least six (6) consecutive months, unless it is found
to be in the best interest of the child for another state to accept jurisdiction.
For general Non-Dissolution case processing purposes, screening for state
jurisdiction should be done by intake staff. During the interview process, if staff
determine: (1) the child has recently moved to New Jersey from another state and
has not been a resident for the past consecutive 6 months or; (2) the child is here on
an extended visit but the other parent/guardian has an existing custody order from
another state, the following should occur:
! If any of these circumstances exist, staff should take the complaint
and advise the party that New Jersey may or may not have
jurisdiction and the judge will make that determination. Staff should
inform the applicant that the court may determine that the other state
has jurisdiction of the case and that he or she may have to go to that
state to make an application to establish custody or have custody
modified. Cases, which may pose jurisdictional issues, should not be
scheduled for a consent conference or mediation. Determination of
jurisdiction can only be made by a judge.