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


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…

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…

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…

Laura Devine Solicitors Limited trading as Laura Devine Immigration is registered in England and Wales as a limited company (8651204) at 100 Cannon Street, London EC4N 6EU. Partner is a term used by us to describe a director in the limited company. Authorised and regulated by the Solicitors Regulation Authority (648320).

Privacy Preference Center