Patricia Gannon | Partner | Marijuana lawyer

Patricia Gannon


Patricia L. Gannon is a partner in Greenspoon Marder’s Immigration and Naturalization practice group. Ms. Gannon focuses her practice on business immigration. She advises multi-nationals on employment verification matters and develops various compliance strategies and programs. Ms. Gannon, as a member of the Foreign American Counsel, concentrates her international practice on global immigration and provides outbound assistance to foreign companies. She facilitates and organizes global human resources through the implementation of visa and management of global mobility staff.

Ms. Gannon has represented fortune 500 companies, artists, olympic athletic, banking, telecommunications and an array of international high net individuals.

Previously, Ms. Gannon was the deputy district counsel for the former Immigration and Naturalization Service, where she spearheaded nationwide enforcement initiatives and worked with the Eastern Region Service Centers’ policy and enforcement of employment eligibility verification forms. She also served as a special assistant to U.S. Attorney for the Eastern District of New York where she investigated and prosecuted many complex immigration civil cases.

Ms. Gannon has lectured nationally and internationally on immigration issues to bar associations and industry groups.

Bar Admissions

  • Minnesota
  • New Jersey


  • J.D., William Mitchell College of Law, 1990
  • B.A., University of Minnesota, Twin Cities Campus, 1986
  • Universidad De Cadiz, 1984-1985

Other Languages

  • Spanish

Professional and Community Involvement

  • New York State Bar Association, Immigration Section, chair
  • International Talent Mobility Team, leadership team
  • United States Chamber of Commerce, Employment Labor Committee, Immigration Sub-Committee, member
  • American Immigration Lawyers Association (AILA), member
  • Employer Sanctions Legislative Committee and the Anti-Exploitation Task Force Committee, member

Speaking Engagements

  • Speaker, “Forming and Dissolving Partnerships,” AILA Annual Conference on Immigration Law, June 14, 2018
  • Speaker, “Labor & Employment Law Section Fall Meeting,” New York State Bar Association, October 20-22, 2017
  • Speaker, “How to Prepare Your Clients for Potential Raids,” Webinar Presented by American Immigration Lawyers Association, July 18, 2017
  • Speaker, “2017 AILA Employer Compliance and Worksite Enforcement Conference,” American Immigration Lawyers Association, February 10-11, 2017
  • Speaker, “Clinton vs. Trump on Immigration – An overview of Very Different Perspectives,” Webinar Presented by New York State Bar Association, October 19, 2016
  • Speaker, “Basic Immigration Law,” Practice Law Institute, March 23, 2006, 2011
  • Speaker, “The Need for a U.S. Immigration Reform: The U.S. and Mexican Perspective,” United States-Mexico Chamber of Commerce, March 2, 2006


  • The National Law Journal, “Immigration Trailblazer,” 2018
  • U.S. News & World Report, “Best Lawyers,” 2014 – 2018
  • InterContinental Finance Magazine, Legal Excellence Award, 2011-2016
  • Legal 500 U.S., 2013 – Present
  • Who’s Who Legal, 2008 – Present
  • Attorney General Award, Outstanding Compliance with EEO Hiring Practices, nominated
  • Department of Justice, Outstanding Performance in Investigation and Prosecution


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