Welcome.

Welcome to Ballpen Legal – a Perth-based incorporated legal practice offering practical, personalised Legal and Notarial services with clear, fixed fees and flexible availability.

We’re proud to serve the Perth community with a commitment to professionalism, integrity, and personalised service. Our approach is client-focused and solutions-driven.

Aerial view of a city skyline with tall skyscrapers, a body of water with boats, and a clear blue sky.

Meet the Team.

Erwin Sohn, director of Ballpen Legal


  • Director

    Ballpen Legal was founded by Erwin Sohn, a seasoned legal professional with over 35 years of experience across South Africa and Australia. Erwin holds degrees in Arts and Law (B.A.LL.B) and is admitted to practice in both the Supreme Court of South Africa and Western Australia. He is also a member of the Australian and New Zealand College of Notaries (MANZCN).

    Erwin’s career spans private practice, leadership roles in national firms, and corporate legal directorships. His reputation for integrity, precision, and client-focused service is the foundation of Ballpen Legal.

Lara Soh, Senior Lawyer at Ballpen Legal


  • Senior Lawyer

    Joining Erwin in leading the practice is his daughter, Lara Sohn. Lara holds a Bachelor of Laws and a Bachelor of Arts from the University of Western Australia. Her career includes roles as an in-house lawyer for a national resources company, regulatory lawyer at ASIC, and solicitor at top-tier and international law firms.

    Lara’s practice covers corporate, commercial, property, and estate planning. She brings a unique blend of technical expertise and commercial insight, helping clients navigate complex legal issues with clarity and confidence.

    Together, Erwin and Lara offer a dynamic blend of experience, approachability, and practical legal advice.

Why Choose Us?

  1. Clear, Fixed Fees:

    No hidden costs. We’ll tell you the total upfront so you can move forward with confidence.

  2. Flexible Appointments:

    Available seven days a week, including evenings and weekends, at no extra cost.

  3. Local & Personal:

    We’re part of the Perth community and take pride in offering personalised service you can trust.

  4. Mobile & Online:

    Consultations available in-office, via Teams, or at your home or office for added convenience.

  5. Comprehensive Legal Services:

    From Independent Solicitor’s Certificates and estate planning to corporate and notarial services, we provide practical legal support across a wide range of matters.

Two men sitting at a desk reviewing documents, one wearing a black jacket and white shirt, the other in a white shirt with a red and white scarf, with a potted plant in the foreground.

Read More.