The American Bar Association's Model Rules of Professional Conduct provide the foundation that most state bars build upon. For immigration attorney websites, three rules matter most.
Rule 7.1: Communications Concerning a Lawyer's Services prohibits any false or misleading statement about you or your services. This includes material omissions — if your website implies a 95% approval rate but only handles straightforward cases, that omission may violate 7.1 even if the number is technically accurate.
Rule 7.2: Communications Concerning a Lawyer's Services: Specific Rules governs advertising methods, including requirements that you retain copies of advertisements (including website content in some jurisdictions) and restrictions on paying others to recommend you.
Rule 7.3: Solicitation of Clients restricts direct solicitation of prospective clients when a significant motive is pecuniary gain. For websites, this primarily affects live chat implementations and targeted email campaigns.
Critical nuance: these are model rules. Your state bar may adopt them verbatim, modify them substantially, or add entirely separate requirements. Texas, California, New York, and Florida have particularly notable variations that affect immigration attorney marketing.
This overview is educational content, not legal advice. Verify current rules with your state bar and consider consultation with a legal ethics attorney for specific compliance questions.