RSA 508-A:3: Action in Another Place by Agreement.

If the parties have agreed in writing that an action on a controversy shall be brought only in another state and it is brought in a court of this state, the court will dismiss or stay the action, as appropriate, unless:

I. The court is required by statute to entertain the action;

II. The plaintiff cannot secure effective relief in the other state, for reasons other than delay in bringing the action;

III. The other state would be a substantially less convenient place for the trial of the action than this state;

IV. The agreement as to the place of the action was obtained by misrepresentation, duress, the abuse of economic power, or other unconscionable means; or

V. It would for some other reason be unfair or unreasonable to enforce the agreement.