What State Bar Rules Actually Require for AI-Generated Law Firm Marketing

Using AI to help produce law firm marketing content isn’t prohibited anywhere. But more than 25 state bars have now weighed in on generative AI use, and California just made advertising violations something a consumer can sue over directly — not just something a bar complaint addresses. The rules aren’t identical state to state (and likely never will be), and “we didn’t know AI was writing it” isn’t a defense in any of them.

Quick answer

No state bar bans generative AI in attorney marketing. The consistent theme across every opinion — ABA Formal Opinion 512 and the state-level guidance built on it — is that the attorney remains responsible for content accuracy and compliance regardless of what tool produced it. California’s SB 37, effective January 1, 2026, goes further for that state specifically: it defines “advertisement” broadly to include AI-generated and vendor-produced content, requires new disclosures on every ad, and gives consumers a private right to sue over violations.

The baseline: ABA Formal Opinion 512

ABA Formal Opinion 512 (July 2024) is the reference point most state guidance builds on. It’s advisory, not binding — the rules that actually govern an attorney are whatever their state adopted — but the themes it lays out (competence, confidentiality, supervision, reasonable fees, client communication) show up in nearly every state opinion that followed.

Where states diverge

• Florida — Ethics Advisory Opinion 24-1 allows generative AI in advertising under existing supervision requirements, plus Florida’s separately strict ad-filing and disclaimer rules.
• California — Practical guidance emphasizes transparency and active oversight at every step, not just a final review.
• New York — A 2024 task force report treats AI-assisted marketing content as attorney speech requiring disclosure where appropriate.
• Texas — Opinion 705 largely defers to existing professional judgment rules without AI-specific advertising detail.
• Washington — The WSBA’s AI Task Force proposed a tiered disclosure framework based on risk level in 2026, still in draft form.

More than half of state bars have issued some form of AI guidance as of 2026, ranging from full formal opinions to brief advisories. The variation is real enough that a firm advertising across state lines should build to the strictest applicable standard, not a single assumed baseline.

California SB 37 — the one with real teeth

SB 37 (effective January 1, 2026) is worth understanding specifically because it changes the consequence, not just the guidance. Under the new law:

• “Advertisement” is defined broadly enough to cover websites, landing pages, paid search and social ads, and lead-generation content — including content produced by vendors or AI on the firm’s behalf.
• Every advertisement must conspicuously display the name of at least one California-licensed attorney (or firm) responsible for the content, and a bona fide office location or State Bar address of record.
• Guarantees, outcome predictions, and misleading awards or rankings remain prohibited — same as before, now with a broader definition of what counts as an ad.
• Consumers now have a private right of action. A State Bar complaint can require an ad’s removal within 72 hours, and violators can be liable for actual damages and attorneys’ fees.

The core shift: a firm can no longer treat a marketing vendor’s AI-generated content as the vendor’s responsibility. The attorney whose name is on the ad is accountable for it, regardless of who or what wrote it.

What this means practically

Firms should confirm, for every state they advertise in: whether AI-assisted marketing content requires disclosure, what the required elements of an advertisement are (attorney name, location, disclaimers), and whether any outcome or results language needs to be scrubbed. This is not a one-time check — several state bars have active committees revisiting this regularly.

FAQ

Is it a violation to use AI to draft law firm blog content or ads?
Not by itself. Every state opinion reviewed here permits AI assistance; the requirement is attorney supervision and accuracy of the final product.

Does SB 37 only apply to California-licensed attorneys?
It applies to advertising covered under California’s Business and Professions Code, which generally reaches ads directed at California consumers regardless of where the firm is physically located — confirm applicability with counsel for your specific situation.

Is this legal advice?
No. This is a general summary of publicly available bar guidance current as of the posts referenced. Confirm current requirements in your specific jurisdiction with qualified counsel before relying on it.