You cannot be a lawyer and a judge at the same time in almost any full-time judicial role in the United States. The American Bar Association’s Model Code of Judicial Conduct forbids it, and a federal statute makes it a criminal offense for any federally appointed judge to keep practicing. Two narrow openings exist: part-time judicial officers can sometimes maintain a limited private practice, and any sitting judge can give free legal advice to a family member. Beyond that, the wall between judging and lawyering is one of the thickest in the profession.
Why the Rule Exists
The reasoning is straightforward. A judge deciding your case should have no stake in the outcome beyond getting the law right. ABA Model Code of Judicial Conduct Rule 3.10 states plainly that “a judge shall not practice law,” and nearly every state has adopted some version of the Code.1American Bar Association. Model Code of Judicial Conduct Rule 3.10 – Practice of Law The broader framework requires judges to avoid even the appearance of impropriety, meaning conduct that would cause a reasonable person to question whether the judge can be fair.2American Bar Association. Model Code of Judicial Conduct
Picture a judge who also runs a firm. That judge has paying clients, business relationships, and financial incentives that could color rulings. Even if the judge never heard a case involving one of their own clients, public perception alone would erode trust in the court. Banning the arrangement outright is simpler than trying to manage the conflicts one at a time.
Federal Judges Face a Criminal Statute
For federal judges, the prohibition is not just ethical. Under 28 U.S.C. § 454, any federal justice or judge who practices law “is guilty of a high misdemeanor.”3Justia Law. 28 USC 454 – Practice of Law by Justices and Judges The provision has been in the federal code for over a century and reaches every Article III judge along with magistrate judges and bankruptcy judges appointed under federal authority. State judges are covered by their own state’s judicial conduct code rather than this statute, but the outcome is identical: practicing while sitting is off-limits.
What Happens to Your Law License
Taking the bench does not mean giving up your bar membership. In most states, a judge’s license shifts to an “inactive” or “judicial” status. The judge stays a member in good standing but is not authorized to represent clients. Many states also excuse sitting judges from the continuing legal education hours practicing attorneys owe each year, though the exemption is not always automatic. The license sits in a holding pattern until the judge leaves the bench.
The Part-Time Exception
The strictest form of the ban applies to full-time judges. Part-time judges, magistrates, and similar officers occupy a gray area where limited private practice is sometimes allowed. The arrangement shows up most often in rural districts and specialized courts where the caseload does not justify a full-time seat and the salary alone would not attract qualified candidates.
Even where private practice is permitted, the guardrails are tight. A part-time judge can never appear as a lawyer in the court where they preside. In the federal system, the conflict-of-interest rules reach the judge’s colleagues too. Partners and associates of a part-time federal magistrate judge may appear as counsel in civil actions across courts but cannot take cases the magistrate judge handled in an official capacity. In criminal matters, partners and associates are barred from appearing in the same federal district where the magistrate judge serves.4United States District Court, Southern District of Indiana. Conflict-of-Interest Rules for Part-Time Magistrate Judges
Even the bar membership requirement can bend for these positions. Federal rules allow the requirement for part-time magistrate judges to be waived when no qualified attorney is available to serve at a particular location.5Administrative Office of the United States Courts. The Selection, Appointment, and Reappointment of United States Magistrate Judges
What a Sitting Judge Can Still Do
Rule 3.10 leaves two doors open. A sitting judge can handle their own legal matters, acting pro se in personal litigation, tax filings, or dealings with government agencies. And a judge can give legal advice to a family member, including drafting or reviewing documents, as long as no fee changes hands. The rule draws a firm line at the courtroom door: a judge cannot serve as a family member’s lawyer in any court or formal proceeding, even for free.1American Bar Association. Model Code of Judicial Conduct Rule 3.10 – Practice of Law
Reviewing a sibling’s lease at the kitchen table is fine. Standing up in court on that sibling’s behalf is not.
What Happens If a Judge Practices Anyway
Violations carry real weight. For federal judges, 28 U.S.C. § 454 classifies the conduct as a high misdemeanor, which can trigger removal proceedings.3Justia Law. 28 USC 454 – Practice of Law by Justices and Judges For state judges, judicial conduct commissions investigate complaints and can impose sanctions ranging from a private reprimand to suspension or removal from the bench. A judge removed for ethical violations may also see their underlying law license suspended, and reinstatement demands the same clear and convincing showing of fitness required of any other suspended attorney.
Smaller violations still bite. A judge who steers business to a former firm, or who gives legal advice outside the family exception, risks a formal complaint that becomes part of the public record. Judicial conduct proceedings are rarely something a career survives.