"The immigration community needs to watch out for Timothy D’Arduini. He is a rising star and central to many of Mayer Brown’s accounts."
Legal 500 US


Timothy D’Arduini is a partner in Mayer Brown’s Washington DC office and a member of the Employment & Benefits practice focusing on global mobility and immigration. He assists Fortune 500 clients in the financial services, healthcare, insurance, defense and information technology industries to develop and execute global mobility strategies for their work corps. Tim has experience with business visitor, work permit and resident permit requirements in multiple jurisdictions including Brazil, Canada, China, Iraq and the United Kingdom. He also has advised multinational corporations on the impact of corporate transactions on work and resident permit holders on assignment in jurisdictions across the globe.

He has deep knowledge of the legal requirements and procedures for processing nonimmigrant visas, PERM Labor Certification applications, immigrant visas, adjustment of status applications, naturalization applications and waivers of admissibility before the Department of Labor, US Citizenship & Immigration Services and the Department of State. He also has significant experience with O-1 nonimmigrant and EB 1A immigrant visa petitions (extraordinary ability) for business executives, research scientists, award-winning television screenwriters, actors, musicians and chefs.

Tim has been involved with US District Court for the District of Columbia and US Court of Appeals for the DC Circuit litigations on issues involving the interpretation of L-1B (specialized knowledge) and H-2B (temporary non-agricultural workers) regulations.

Prior to joining Mayer Brown, Tim served as a Law Clerk for Senior Associate Justice Jaynee LaVecchia of the Supreme Court of the State of New Jersey and as a Marsha Wenk Public Interest Law Fellow at the American Civil Liberties Union of New Jersey. He also has extensive experience working in multidisciplinary and boutique law firm practices, as well as at immigration legal services organizations.

Spoken Languages

  • English
  • French


Rutgers University School of Law, JD
Order of the Coif

Georgetown University, BS, Culture and Politics


  • New Jersey
  • District of Columbia


  • American Immigration Lawyers Association
  • New Jersey State Bar Association
  • Recognized as a “Rising Star” by Legal 500 US 2019-2021