A law firm’s letterhead has to do two jobs at once: identify the firm clearly and stay inside the ethics rules that govern lawyer communications. The requirements for law firm letterhead come primarily from the ABA Model Rules of Professional Conduct, which most states have adopted in some form. At minimum, the stationery needs the firm’s name and contact information, accurate listings of the lawyers and any non-lawyer staff, the proper business entity designation, and nothing that could mislead a client, court, or opposing counsel about who they are dealing with.
What Must Appear on the Letterhead
ABA Model Rule 7.2(d) requires that any communication about a lawyer’s services include the name and contact information of at least one lawyer or law firm responsible for its content.1American Bar Association. Model Rules of Professional Conduct Rule 7.2 Communications Concerning a Lawyers Services The rule doesn’t dictate the exact contact details, but standard practice is the firm’s full legal name, a street address, a phone number, and often a website or email. Firms with more than one office typically identify which location is sending the correspondence.
Most letterheads also list the firm’s attorneys, sometimes grouped as partners, associates, and of counsel. Every name carries ethical weight, and the rules on who can be listed, and how, are tighter than many lawyers assume.
The Rule That Governs Everything Else: No False or Misleading Content
ABA Model Rule 7.1 prohibits any communication about a lawyer’s services that contains a material misrepresentation of fact or law, or that omits a fact necessary to keep the overall statement from being misleading.2American Bar Association. Model Rules of Professional Conduct Rule 7.1 Communications Concerning a Lawyers Services This is the backstop for every other letterhead requirement. If something on the stationery could give a reader the wrong impression, it likely violates Rule 7.1 even where no more specific rule applies. State bars investigate complaints and impose sanctions ranging from private admonitions to public reprimands.
Firm Names and Trade Names
ABA Model Rule 7.5 governs what a firm can call itself. A firm can use the names of some or all of its members, or it can adopt a trade name such as “Westside Legal Group,” provided the name doesn’t suggest a connection to a government agency or a public legal aid organization.3American Bar Association. Model Rule 7.5 Firm Names and Letterheads A private practice calling itself “The Public Defender Law Office” would cross that line.
Deceased or retired partners’ names can remain in the firm name as long as the firm has maintained a continuing succession of identity. This is common at long-established firms and is technically a form of trade name. The letterhead should make clear that the named individual is deceased or retired so nobody picks up the phone expecting to speak with them.
When a Partner Leaves to Practice Elsewhere
Once a lawyer departs to practice at another firm, keeping that person’s name on the stationery is misleading under Rule 7.1, because clients reasonably assume they can hire that attorney through you. The Model Rules provide no formal grace period. Update the letterhead immediately rather than running down existing stock. A partner who retires from practice entirely is treated differently and can generally remain in the firm name, following the same logic as deceased partners.
How to List “Of Counsel” Attorneys
“Of Counsel” has a defined meaning. ABA Formal Opinion 90-357 describes it as a “close, regular, personal relationship” that is neither a partnership nor the typical associate arrangement in which a junior lawyer is regularly employed by the firm.4American Bar Association. Formal Opinion 90-357 A senior attorney who works closely with the firm on an ongoing basis without being a partner or salaried employee fits. Using the label for someone who merely refers cases, or who handled one matter last year, misrepresents the relationship and runs afoul of Rule 7.1.
Listing Paralegals and Other Non-Attorney Staff
Paralegals, law clerks, investigators, and other non-lawyer staff can appear on the letterhead, but their non-lawyer status must be unmistakable. Titles like “Paralegal,” “Law Clerk,” or “Legal Assistant” next to the name do the job. Listing a paralegal in the same format and font as the attorneys, with no distinguishing title, suggests they are a licensed lawyer and can veer into unauthorized-practice territory.
ABA Model Rule 5.3 gives partners and supervising lawyers an affirmative duty to ensure that non-lawyer conduct is compatible with the firm’s professional obligations, and that duty extends to how staff are represented on firm stationery.5American Bar Association. Model Rules of Professional Conduct Rule 5.3 Responsibilities Regarding Nonlawyer Assistance If a client reasonably believes a paralegal listed on the letterhead is an attorney and acts on that belief, the supervising lawyer can face discipline.
Multi-State Firms and Jurisdictional Limitations
Rule 7.5 also addresses firms that use the same name across jurisdictions. When attorneys listed on the letterhead are not licensed in every state where the firm operates, the letterhead must indicate the jurisdictional limitations of each such lawyer.3American Bar Association. Model Rule 7.5 Firm Names and Letterheads The standard approach is a notation next to the name, such as “Admitted in Illinois only.”
A client reading the letterhead from a Denver office might otherwise assume every listed attorney can practice in Colorado. If that assumption leads to hiring a lawyer barred only elsewhere, the firm faces fee disputes and discipline. Courts have voided fee agreements where jurisdictional status was misrepresented. When listing multiple offices, make clear which lawyers belong to which location.
Business Entity Designations
Most states require law firms organized as professional corporations, limited liability partnerships, or limited liability companies to carry the appropriate entity suffix on their letterhead: “P.C.,” “LLP,” “LLC,” and the like. Clients and anyone dealing with the firm have reason to know the business structure, because it affects questions such as whether individual partners carry personal liability for firm obligations. State business formation statutes typically require the entity designation as part of the firm’s legal name, and using a trade name that drops the suffix can create a misleading omission.
Specific requirements vary by state. A firm organized in one state but operating in another should check both. When in doubt, include the designation.
Advertising a Specialty or Certification
ABA Model Rule 7.2(c) says a lawyer may not state or imply certification as a specialist unless two conditions are met: the certifying organization is approved by a state authority or accredited by the ABA, and the name of that certifying organization is clearly identified in the communication.1American Bar Association. Model Rules of Professional Conduct Rule 7.2 Communications Concerning a Lawyers Services
Printing “Board Certified Trial Attorney” without identifying who granted the certification violates the rule. So does listing a certification from an organization that lacks ABA accreditation or state approval. The restrictions target the word “certified” and formal specialty claims. Lawyers can still describe their practice areas and experience without running into Rule 7.2(c).
Email Signatures Count as Letterhead
The same rules that govern printed stationery apply to email signatures and other digital correspondence. An email from the firm domain carrying a lawyer’s name and title functions as letterhead in the eyes of most state bars. Firm name, jurisdictional admissions, and proper identification of non-lawyer staff all need to be accurate in digital formats as well as on paper.
Most firms also include confidentiality notices and attorney-client privilege disclaimers in email signatures. No single ABA Model Rule mandates specific language, but the duty to protect client confidences under Model Rule 1.6 gives firms a practical reason to include one. Standard language warns unintended recipients that the communication is privileged and asks them to notify the sender if they received it in error. Disclaimers don’t create privilege where none exists, but they reinforce the sender’s intent to keep the communication confidential, which can matter if a dispute arises.
Firms with centrally managed email systems have an easier time keeping these details current. When a lawyer is admitted to a new bar or changes titles, the update should propagate across every outgoing message. Stale credentials in an email signature carry the same ethical risk as outdated printed stationery, and they’re easier to overlook because nobody reorders them from a printer.