N.H. Code Admin. R. Hab 201.07
(a) Except as noted below, each party shall file an appearance signed by the party or the party's attorney, agent, or municipal consultant, listing:
(b) If an appearance is filed by an attorney, agent, or municipal consultant, the appearance shall:
(3) Certify the attorney, agent, or municipal consultant:
(c) In all appeals, the appeal document shall constitute the appearance of the person signing the document, provided the following requirements are met:
Source. #13226 eff 7-7-21