
Mary Cecilia Sweeney
Attorney
Sector: US Immigration
Location: London
MC is an attorney with the US team in London. Her practice areas include advising and preparing all categories of non-immigrant and immigrant cases, with particular emphasis on L-1 intra-company transfers and Blanket petitions, E-1 and E-2 treaty investors, O-1 persons with extraordinary ability, waivers of inadmissibility, EB-1 and family-based green cards. MC also advises on US citizenship matters including renunciation. Before joining LDI, she specialized in US litigation as a partner with boutique law firm Kaplan Landau LLP in New York.
History
2021-present – Laura Devine Immigration, London
2008-2017 – Kaplan & Landau LLP, New York
2006-2008 – Sullivan & Worcester LLP, New York
2003-2006 – Weil, Gotshal & Manges LLP, New York
Education
2004 – Admitted to the U.S. Federal Courts of the Eastern and Southern Districts of New York
2004 – Admitted to State Bar of New York
1999-2003 – Juris Doctorate, Fordham University School of Law, New York
Latest Insights
27 March 2026
Zeena Luchowa comments in The Independent on dual nationals entering the UK via Ireland following enforcement of ETA scheme
Zeena Luchowa (Partner) has been quoted in The Independent in an article by Simon Calder examining the practical impact of the UK’s Electronic Travel…
27 March 2026
Laura Devine Immigration wins gold at the Citywealth Powerwoman Awards International 2026
We are delighted to announce that Laura Devine Immigration has won Gold at the Organisation of the Year – Female Leadership category at the 2026…
20 March 2026
Zeena Luchowa quoted in The Guardian regarding new rules preventing British dual nationals travelling to the UK without a British passport
Partner Zeena Luchowa has been quoted in The Guardian in an article regarding the impact of new rules requiring dual British nationals to travel to…
