AI Rules for New Hampshire Law Firms
Last verified July 8, 2026
New Hampshire has not issued a formal ethics opinion or court rule on attorney AI use, but two enacted statutes and Bar Association guidance already shape how your firm should handle AI, from client intake tools to deepfake evidence in litigation. Here is what applies today.
Where New Hampshire Stands
New Hampshire's most direct authority on attorney AI use is the state Bar Association's Ethics Committee, which published practical guidance titled Ethics of Using Artificial Intelligence in Practice as part of a set of three 2024 AI articles. It is committee guidance rather than a formal ethics opinion, but it is the primary NH authority firms have. Two enacted statutes round out the picture: HB 1688 (2024, ch. 209), governing AI use by state agencies, and HB 1432 (2024, ch. 243), which created RSA 507:8-j on fraudulent deepfakes.
What Your Firm Must Do
The Ethics Committee's guidance sets the standard of care your firm should follow: maintain technology competence under Rule 1.1, verify all AI output before relying on it, keep client data out of public AI tools under Rule 1.6, and adopt a firm AI policy before using AI in practice. If your firm represents clients before or against New Hampshire state agencies, HB 1688 bars those agencies from using AI to manipulate, discriminate, or surveil, and requires human review and disclosure of agency AI output, which is relevant to how you evaluate agency decisions in those matters.
Malpractice and Carrier Considerations
RSA 507:8-j, enacted via HB 1432, gives clients a new civil cause of action against anyone who knowingly uses their likeness in a deepfake to cause financial or reputational harm, and makes fraudulent deepfake use a Class B felony. For litigators, this means both a new claim to consider on behalf of clients and a reason to tighten authentication practices for audio and video evidence you receive or submit.
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