
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 February 2026
Laura Devine Immigration submits comprehensive response to Home Office earned settlement consultation
Laura Devine Immigration has submitted a detailed 40-page substantive response to the Home Office’s earned settlement proposals to offer…
24 February 2026
The unequal impact of the earnings requirements under the Earned Settlement proposals
On 20 November 2025 the UK government published a statement and accompanying consultation containing proposals for introducing a new ‘earned…
23 February 2026
FY 2027 H-1B registration opens soon: What employers need to know
With USCIS having now announced the FY 2027 H 1B cap lottery registration dates, this is an opportune time to revisit the H 1B registration process…
