N.J. Stat. Ann. § 46:3-17.1

Any conveyance of real estate, hereafter made, by the grantor therein, to himself and another or others, as joint tenants shall, if otherwise valid, be as fully effective to vest an estate in joint tenancy in such real estate in the grantees therein named, including the grantor, as if the same had been conveyed by the grantor therein to a third party and by such third party to said grantees.