About our Immigration Law firm

Image of Ann Lipson with immigration client

Lipson & Pretorius LLP focuses exclusively on providing the highest standard of U.S. immigration services to our corporate clients, entrepreneurs, investors, and individual families. All of our lawyers are immigrants themselves. We offer personalized services in English, French, Spanish, Mandarin, and Afrikaans.

Our Mission

Our aim is to put a human face on the bureaucratic process while we guide you through the maze of paper and rules to reach your immigration goals.


Our Immigration Law Team

Portrait of Hendrik Pretorius

Hendrik PretoriusManaging Partner

An immigrant himself, Hendrik is focused primarily on assisting foreign-born entrepreneurs, small U.S. based businesses, and foreign investors to develop and implement immigration strategies aimed at enabling them to reach their goals without immigration impediments. Hendrik has successfully worked with many start-up ventures and investors who are now in the U.S. operating their businesses and legally working towards their goals in the U.S.

Hendrik completed his undergraduate studies with honors in the fields of Economics and Finance and then went on graduate from Santa Clara University School of Law with Honors in 2007. Based on the mix of a business and legal background Hendrik decided to dedicate himself completely to the practice of business-immigration law.

Hendrik was born in South Africa, and grew up in Buenos Aires, Argentina and Mexico City, Mexico before moving to the U.S., thereby enabling him to communicate with clients in Spanish, Afrikaans, and English. Hendrik himself emigrated to the U.S. in 2000 and personally experienced the entire immigration process first hand.


Portrait of Ting Ni

Ting NiPartner

Ting received her Juris Doctor degree cum laude from Notre Dame Law School and is licensed to practice in California. During law school, she served as the Senior Editor of the Notre Dame Journal of International and Comparative Law. She also competed with both the school’s American Bar Association Arbitration team as well as its Moot Court Trial team in national tournaments.

Ting’s experience in immigration began in 2007, where she worked extensively with clients as a paralegal on employment based visas and immigrant petitions. She has also served as a Legal Fellow with the International Institute of the Bay Area, concentrating her attention on cases involving immigrant youths. Additionally, Ting was involved with the Notre Dame Clinical Law Center during her time in law school. There, she spent two years representing various low-income clients in civil litigation matters involving consumer law in Indiana.

Ting is a member of the American Immigration Lawyers Association. She has lived in China, Australia, United Kingdom, and the United States and is bilingual in English and Mandarin Chinese.


Ann L. LipsonOf-Counsel Attorney

Ann L. Lipson, J.D., M.A., M.S.(2), is a dual U.K./U.S. citizen who has over 30 years experience practicing U.S. immigration and nationality law in an international context. She received her Juris Doctor degree from the University of Wisconsin in 1980, and opened her own immigration practice in 1988 after 6 years of immigration, commercial, and international tax experience in law firms in Phoenix.

Ann, who is fluent in French and Spanish, has lectured on U.S. immigration law in Paris, has published overseas, and guest lectured on immigration law at Golden Gate University Law school in San Francisco. In addition to her Law Degree, Ann holds a Master’s Degree in Psychology from the University of Wisconsin; 2 Master’s Degrees in French from the University of London, England, and Syracuse University; and a Bachelor’s Degree with Highest Distinction in French and Spanish from the University of Michigan.