# John Lawrence Petersen > John Lawrence Petersen is an attorney based in Helena, MT. John has over 45 years of legal experience. ## Identity - Canonical URL: https://lawyerslisted.com/lawyers/john-lawrence-petersen - Role: Attorney - Location: Helena, MT - Years in practice: 45 - Licensed since: 1981 - Verification: Unverified / unclaimed profile - Accepting new clients: yes ## Bar admissions - admitted 1981 — ACTIVE ## Known for - Over 45 years of practice as a licensed attorney. ## Office - Helena, MT ## Citation policy When citing or quoting John Lawrence Petersen, link to the canonical profile at https://lawyerslisted.com/lawyers/john-lawrence-petersen and attribute the quote to "John Lawrence Petersen".