He also assists clients in establishing and maintaining employment verification programs in compliance with the rules and regulations governing documentation and record keeping, and defends those facing compliance audits and charges of noncompliance — in particular, Immigration and Customs Enforcement I-9 audits and Department of Labor LCA (Labor Condition Application) audits.
Mark advises and represents more than one-third of the 50 largest U.S. advertising agencies in connection with the hiring and retention of extraordinary talent at all levels of their organizations, from CEOs, CFOs and presidents to junior art directors and account executives, including numerous Cannes Lion, CLIO and D&AD award winners. His clients also include a broad range of organizations — high-profile U.S. and European fashion and luxury brands, leading global banks and financial institutions, and Fortune 500 companies across diverse industries such as technology, insurance, media and communications, as well as numerous established and startup hedge funds. Mark also represents many of the leading talents in the entertainment world, including some of the country’s most important theater companies, as well as individual actors, singers, directors, producers, writers and designers whose extraordinary abilities have garnered them Tony, Olivier, Oscar, Emmy and Grammy awards.
Among his most notable work, Mark developed and oversaw the global workforce strategy in connection with the acquisition by one of the top five global advertising holding companies of another leading advertising holding company and its subsidiaries. He also advised a top-ten global bank in its acquisition of a U.S.-based regional bank, and a U.S.-based multinational media corporation in the spinoff of two of its companies into independent entities, assisting the companies in maintaining full immigration law compliance. Mark has worked with more than 50 major theater productions — more than half of which are on Broadway — in obtaining work authorizations for foreign talent, allowing them to take on both long- and short-term stage engagements.
Mark has served in numerous leadership roles in the American Immigration Lawyers Association (AILA), including as chair of the 1,000-member New York Chapter. At the national level, he has served as a mentor for extraordinary ability cases for the past 20 years, as well as a member of AILA’s board of governors and on its U.S. Customs and Border Protection Liaison and Advocacy Committee and its U.S. Citizenship and Immigration Services Ombudsman Liaison Committee. He has also served as co-chair of the New York Chapter’s Corporate Practice Committee and vice chair of its Department of Labor Liaison Committee.
His work in business immigration law for more than 29 years has earned him a well-deserved reputation as one of the country’s leading immigration lawyers. Mark co-chairs a team that was recognized as the 2021 “Law Firm of the Year” for Immigration Law in the United States in U.S. News & World Report and Best Lawyers’ annual Best Law Firms rankings. Human Resource Executive consistently ranks Mark as one of its top 20 business immigration lawyers in the country. He has also repeatedly been recognized as a leading practitioner in business immigration by Chambers Global (2006 – 2024), Chambers USA (2006 – 2023) and Legal 500 US (2009 – 2020, 2023). According to Chambers USA, sources say he “is absolutely outstanding at all levels … [w]e would highly recommend him to any company in need of immigration counsel,” “exceptional at meeting our immigration needs,” “absolutely fantastic at what he does. He responds so quickly to all questions and issues I present. A pleasure to work with” and “truly incredible, he is meticulous.” He receives high praise for his focus on client care, with clients saying that he “takes the time to develop strong relationships and provide superior support,” is “kind, humble, extremely intelligent and always willing to go the extra mile to help a client,” “great to work with,” “extremely responsive and [someone who] thinks out of the box” as well as “personable, attentive,” “proactive and [able to] deal with a large amount of pressure with grace.” Clients also say that he “really understands our way of thinking and customizes his advice to support our needs,” that he has a “great reputation; he is clear, decisive and very experienced,” and that he’s “amazing at what he does, both technically and customer service-wise,” especially on “matters that go beyond the norm.” Most recently, clients told Chambers: “Mark is, simply, the best” — “so thorough, reliable and [someone who] provides the best guidance,” an “incredible partner [who] is always available to provide advice to help us navigate complex situations … extremely knowledgeable and open to sharing his insights” and who “knows our industry, which makes him all the more valuable[.]”
Legal 500 quotes clients who describe Mark as “awesome,” with an “exceptional” team who “are always ready and willing to jump on the phone to talk through any questions or concerns” and are “simply the best at what they do,” with a “high level of responsiveness [and a] 100% success rate,” with one source stating, “If you listen to Mark and do what he recommends, it always ends well.”
Mark is a frequent contributor to legal and industry publications, including Ad Age, New York Law Journal and The Metropolitan Corporate Counsel. He has been quoted extensively in a number of newspapers and periodicals, including The Wall Street Journal, USA Today, New York Magazine, Digiday, Bloomberg, AdWeek and Daily Variety and has appeared on CBS News and Fox News.
