N.H. Rev. Stat. Ann. § 458:5
Jurisdiction of the parties exists in the following cases only:
III. Where the plaintiff was domiciled in the state for one year next preceding the time when the action was commenced.
Where the domiciled plaintiff has filed a petition, the non-domiciled defendant may have affirmative relief upon filing a cross petition.
Source. 1883, 14:1. PS 175:3. PL 287:4. RL 339:4. 2004, 114:2, eff. May 17, 2004.