Naming a law firm comes down to one governing principle and a stack of paperwork: the name cannot mislead anyone about who practices there or how the firm is organized, and once you have a compliant name, you have to clear it with your state bar, register it as a business entity, and ideally protect it as a trademark. Learning how to name a law firm means working through each of those layers in the right order, because a name that satisfies your marketing instincts but fails the ethics rules will cost you far more to fix later than to get right at the start.
The Rule Every Firm Name Has to Satisfy
Every state regulates law firm names through its own version of the professional conduct rules, and nearly all of them trace back to ABA Model Rule 7.1: a lawyer cannot make a false or misleading communication about their services, and a communication is misleading if it contains a material misrepresentation or omits a fact that makes the overall message deceptive.1American Bar Association. Model Rules of Professional Conduct – Rule 7.1 A firm’s name is a communication, so every word in it is measured against that standard.
The ABA once had a separate rule, Model Rule 7.5, dedicated to letterheads, trade names, and multistate practice. The ABA deleted it in 2020 as part of a consolidation of its advertising rules.2American Bar Association. Model Rules of Professional Conduct – Table of Contents Most states did not follow. They still enforce their own version of Rule 7.5 or an equivalent firm-naming provision, so the original framework is effectively the law in the majority of jurisdictions. Check your state’s specific rules before finalizing anything.
Naming the Firm After Its Lawyers
The traditional approach — a name built from partner surnames like “Johnson & Rivera LLP” — is the cleanest path to compliance. It tells clients exactly who runs the firm and raises no ethical questions on its face. The complications come when a named lawyer is no longer actively practicing at the firm.
The “And Associates” Trap for Solos
One of the most common mistakes: a solo practitioner calling the firm “Smith and Associates.” If you practice alone without other lawyers employed by the firm, the name is misleading because it implies attorneys who are not there. Several states’ ethics commentaries flag this specifically. If you’re a solo, use your own name or pick a compliant trade name. “And Associates” is only accurate when you actually have associates on staff.
Deceased and Retired Partners
Most states allow a firm to keep using a deceased or retired partner’s name if there has been a continuing succession in the firm’s identity. The ABA’s original Rule 7.5 commentary acknowledged that a firm name including a deceased partner’s name is technically a trade name, but called it “a useful means of identification.”3American Bar Association. Rule 7.5 Firm Names and Letterheads The firm must be a genuine continuation of the original practice, not a new firm borrowing a respected name. Using the name of a lawyer who was never associated with the firm or a predecessor is misleading under the same rule.
Whether you can keep a deceased partner’s name may also depend on your partnership agreement or applicable corporate law. If the operating agreement grants the right to continue using the name, that typically satisfies the ethical requirement. If it doesn’t, you may need consent from the partner’s estate. Address this in your partnership agreement before it becomes urgent.
Departing Partners and Public Office
When a partner leaves for another firm, their name should come off your letterhead and firm name. Continuing to use it suggests a professional relationship that no longer exists.
A related situation is when a partner takes public office. Under the version of Rule 7.5 still enforced in most states, a lawyer holding public office cannot have their name used in the firm name or communications during any substantial period when they are not actively and regularly practicing with the firm.3American Bar Association. Rule 7.5 Firm Names and Letterheads A name like “Senator Williams & Associates” implies government connections that could mislead clients.
Trade Names and Creative Alternatives
Not every firm wants a name built from surnames. Trade names — think “Summit Legal Group” or “Riverfront Law” — are permitted in private practice under most states’ rules, with conditions. The name cannot imply a connection with a government agency or a public legal services organization, and it must not otherwise be misleading.3American Bar Association. Rule 7.5 Firm Names and Letterheads
Some states are stricter than others. A handful still limit trade names to those incorporating actual lawyer names or the names of deceased or retired partners, though that position has been softening. Check your state bar’s current interpretation before committing.
Geographic Terms and Disclaimers
Using a city or region in a firm name can create a specific problem. “Springfield Legal Clinic” might lead people to believe the firm is a public legal aid organization. The ABA commentary flags this and notes that an express disclaimer may be required to avoid the misleading implication.3American Bar Association. Rule 7.5 Firm Names and Letterheads Geographic terms can also mislead if they suggest offices or a substantial practice in a location where the firm has none.
Words That Invite Trouble
Certain words trigger ethics problems on their own.
- Specialist or expert: Under the version of Rule 7.2 still in force in most states, a lawyer cannot state or imply certification as a specialist unless certified by an organization approved by the state or accredited by the ABA, and the certifying organization is clearly identified. Building “specialist” or “expert” into your firm name would make every use of the name a potentially misleading communication.4American Bar Association. Rule 7.2 Communications Concerning a Lawyers Services
- Guarantee or assured: Legal outcomes are inherently uncertain. A firm name suggesting guaranteed results violates the ban on misleading communications.
- Non-lawyer names: Including someone who is not a lawyer in the firm name suggests they are a practicing attorney. Most states prohibit this to prevent unauthorized-practice confusion.
Entity Designations You Have to Include
Once you form your firm as a legal entity — Limited Liability Partnership, Professional Corporation, Limited Liability Company, or another structure — most states require the corresponding designation in your firm name. An LLP typically must include “LLP” or “Limited Liability Partnership”; a Professional Corporation often must include “PC,” “P.C.,” or “Professional Corporation.”
These aren’t optional flourishes. They tell clients and other parties about the firm’s liability structure. Dropping the designation or using the wrong one can create ethics problems with your state bar and legal complications under your state’s business entity statutes. If you later change structures — converting from a PC to an LLC, for example — update the name and file the appropriate amendments with your secretary of state’s office.
Available designations vary. Some states do not permit law firms to organize as standard LLCs, while others allow it but require specific professional designations. Annual maintenance fees for entities like PCs and LLPs generally range from $25 to $550 depending on the state, with some states basing costs on gross revenue. Confirm the specifics with your state’s business entity statutes and bar rules before filing.
Firms With Offices in More Than One State
A firm practicing in more than one state can use the same name across all its offices, but must identify the jurisdictional limitations on any lawyers who are not licensed in the state where a particular office is located.3American Bar Association. Rule 7.5 Firm Names and Letterheads In practice, letterhead and websites for each office should note which attorneys are admitted where.
Multistate firms also have to satisfy potentially conflicting rules. One state may freely permit trade names while a neighboring state applies stricter limits. The firm has to comply everywhere it has an office, which sometimes means disclaimers or modified letterhead in certain jurisdictions.
Domain Names Follow the Same Rules
Your website address is subject to the same ethical standards as your firm name. The ABA’s original Rule 7.5 commentary recognized that a firm may be designated by “a distinctive website address or comparable professional designation,” but any such designation must still avoid misleading communications.3American Bar Association. Rule 7.5 Firm Names and Letterheads
A domain like “bestlawyersinyourcity.com” raises the same red flags as putting that phrase on a business card. Superlative or descriptive URLs can be treated as misleading advertising. A safer choice is a domain that matches or closely tracks your registered firm name. If the domain differs, make sure it doesn’t imply services you don’t offer, a geographic presence you don’t maintain, or a government or legal aid affiliation you don’t have.
Protecting the Name as a Trademark
Ethics compliance gets you approval from the bar. It does not stop another firm from using a similar name. That’s what trademark law does.
Under the Lanham Act, a law firm name qualifies for federal trademark registration if it is used in commerce and is distinctive.5Legal Information Institute. Lanham Act Distinctiveness is where most traditional firm names run into difficulty. “Smith & Associates” is built on a common personal name, and personal names generally require “secondary meaning” — proof that the public associates the name with your specific firm — before they qualify for protection. A more inventive name like “Ironclad Legal Partners” is easier to protect because it doesn’t merely describe the service.
Registering with the USPTO creates rights throughout the United States, allows use of the ® symbol, and places your name in a publicly searchable database that helps deter confusingly similar adoptions.6United States Patent and Trademark Office. Why Register Your Trademark The base filing fee is $350 per class for an electronically filed application.7United States Patent and Trademark Office. USPTO Fee Schedule Additional fees may apply if your application uses custom descriptions of services rather than pre-approved language from the USPTO’s Trademark ID Manual.
Before settling on a name, run a comprehensive search — the USPTO database, state trademark registries, and a general web search. Finding a conflict after you have printed letterhead, built a website, and filed your bar registration costs far more than finding it during planning.
The Registration Steps
Naming a law firm involves approvals from several authorities, not just one. A typical sequence:
- Check your state bar’s rules first. Some bars require pre-approval of firm names; others rely on post-hoc enforcement. If yours reviews names, submit early.
- Register your business entity. If you are forming an LLP, PC, LLC, or corporation, register with your state’s secretary of state or equivalent agency. The name has to comply with that state’s entity-naming statutes, which typically require the appropriate designation and prohibit names identical or deceptively similar to existing registrations.8U.S. Small Business Administration. Register Your Business
- File a DBA if you use a trade name. If the firm operates under a name different from its registered legal name, many states and counties require a “doing business as” or fictitious name filing. Requirements and fees vary by location.
- Search for conflicts before you spend money. Check the USPTO database, your state’s trademark registry, your state’s business entity database, and the open web for similar firm names.
- File a federal trademark application if you want nationwide protection, once you have confirmed the name is clear.
What Happens if You Get It Wrong
A non-compliant firm name isn’t a technicality regulators overlook. The professional conduct rules are enforceable through your state’s attorney discipline system, and violations can result in sanctions ranging from a private reprimand to suspension. A misleading firm name also constitutes conduct involving misrepresentation under Rule 8.4(c) in most states, which is an independent basis for discipline.
Beyond bar discipline, trademark infringement can lead to federal litigation, injunctions forcing you to stop using the name, and damages. Rebranding costs alone — new signage, stationery, website redesign, updated court filings, client notifications — make it worth investing the time upfront. A few hours of research and a trademark search at the beginning can save thousands of dollars and considerable professional embarrassment later.