“Born in the States, growing up in Asia and travelling extensively to visit family in Europe and Australia, I am part of the “global village” with a unique international perspective.  It gives me immense joy and fulfillment to merge that perspective with BAL’s values and commitment to unparalleled service to help our clients travel the world seamlessly and reach their potential and goals.”  

Petra is a Partner in the San Francisco office of Berry Appleman & Leiden LLP, and her immigration practice focuses on business visa issues. Petra advises and represents clients in a variety of industries, with a focus on high tech and finance. With her extensive experience as well as dedication to her clients, Petra serves large multinational corporations on immigration issues arising from corporate reorganizations, mergers, and layoffs, managing PERM recruitment programs and filing petitions in the outstanding researcher and multinational manager/executive categories. Petra speaks German and conversational Cantonese.

Education & Admissions

Golden Gate University, School of Law, Juris Doctorate
University of Pennsylvania, Bachelor of Arts, English
Admitted to: State Bar of California


American Immigration Lawyers Association (AILA)
Immigration Committee of the Barristers Club of San Francisco (Former Chair)


Best Lawyers since 2017

Professional Accomplishments

Speaker, BAL Breakfast Briefing: Immigration Basics 101: Do's and Don'ts When Hiring Foreign Talent (January 2016)
Speaker: Suddath Relocation Client Summit (June 2015)
Speaker, BAL Breakfast Briefing: Getting Clear on What to Pay Your Foreign Talent: Understanding US Immigration Prevailing Wage Issues (November 2014)
Speaker, AILA Webinar: Advising Permanent Residents Moving Overseas (March 2014)
Speaker, Society for Human Resource Management: Hot Topics in Immigration and Compliance for Employers (July 2013)