Massachusetts firms apply ABA Op. 512 to Mass. RPC 1.5 with the SJC standing-order overlay for litigation matters.

As of May 2026, Massachusetts has not issued a state-specific formal ethics opinion on lawyers' use of generative AI. Massachusetts practitioners apply the ABA Opinion 512 framework to Mass. RPC 1.5 (Fees), which mirrors Model Rule 1.5. The pillar's clause library applies unchanged. The operational additions are jurisdictional: a standing-order register for litigation matters, and Clause 03's Rule 3.3 candor reference for filings before tribunals.

For litigation matters, firms consult the Supreme Judicial Court and Superior Court standing-order coverage on AI-use disclosure. Standing orders vary by court and session and change without bar-association notice. The freshness loop on this overlay captures court-specific updates as they publish; the matter-opening checklist requires confirming the standing-order register is current for the court of practice before any AI-assisted draft is filed.

Clauses 01 and 03 of the pillar's clause library apply unchanged in Massachusetts. Clause 03's Rule 3.3 (candor toward the tribunal) reference is the operational hinge for litigation matters: any AI-assisted filing carries the lawyer's verification obligation to the court, and the standing-order register dictates whether explicit AI-use disclosure is also required on the face of the filing.