O’Farrell
O’Farrell is a law firm in Argentina, with 110 lawyers listed on its own site.
- Jurisdiction
- Argentina
- Founded
- Not stated
- Professionals
- Not stated
- Recognitions
- 16
- Lawyers on file
- 110

Organization
1 practice areas and sectors · 110 lawyers on the firm’s siteHow O’Farrell is organised, read from the titles and practice areas it publishes for each lawyer. A head is named only where the firm states one; otherwise the partner admitted earliest on record stands first and is labelled so.
45 lawyers list no practice area on the firm’s site; they appear in the list below.
Lawyers
110 on the firm’s own siteNames, titles and practice areas as O’Farrell publishes them, senior titles first. Each name opens the firm’s own page for that person.
- Agustín Siboldi SocioPartnerÁreas de práctica
- Ana Belén MicciarelliPartnerPartner
- Asuntos ComplejosPartnerÁreas de práctica
- Consumer LawPartner
- Contratación PúblicaPartnerÁreas de práctica
- Ernesto Genco SocioPartnerÁreas de práctica
- Financiación de ProyectosPartnerÁreas de práctica
- Francisco María Astolfi SocioPartnerÁreas de práctica
- Guillermo Lalanne SocioPartnerÁreas de práctica
- Ignacio Agustín Castiglione SocioPartnerÁreas de práctica
- Jorge I. Muratorio SocioPartnerÁreas de práctica
- José Luis Zapata SocioPartnerÁreas de práctica
- María Celina Valls SociaPartnerÁreas de práctica
- Sebastián Luegmayer SocioPartnerÁreas de práctica
- Carlos RepettoOf CounselÁreas de práctica
- Cecilia CookOf CounselÁreas de práctica
- Daniel A. CalzettaOf CounselÁreas de práctica
- Derecho CorporativoOf CounselÁreas de práctica
- Derecho EcuestreOf CounselÁreas de práctica
- Eduardo BaistrocchiOf CounselÁreas de práctica
- Fusiones y AdquisicionesOf CounselÁreas de práctica
- Mónica G. OrlandoOf CounselÁreas de práctica
- Agustina BarberisAssociate
- Alix de Alba JarabaAssociateAssociate
Directory placements
12 practice areas · read from the publishers’ tablesWhere the directories place O’Farrell, practice area by practice area, as each table stands on the publisher’s own site. Each cell links to that table. The columns are the same on every page of this site.
Recognition
16 announcementsWhat other publishers have said, as O’Farrell reports it on its own site, with the lawyers each announcement names. Each entry links to the page where it was read.
Chambers2026
Chambers Latin America Guide 2026Chambers2026
Chambers Latin America Guide 2026
The Legal 500Tier 42026
Banking and finance
“The Legal 500 Asia Pacific 2026: Tier 4, Banking and finance, Argentina”
The Legal 500’s published tableThe Legal 500Tier 32026
Competition and antitrust
“The Legal 500 Asia Pacific 2026: Tier 3, Competition and antitrust, Argentina”
The Legal 500’s published tableThe Legal 500Tier 22026
Compliance
“The Legal 500 Asia Pacific 2026: Tier 2, Compliance, Argentina”
The Legal 500’s published tableThe Legal 500Tier 22026
Consumer law
“The Legal 500 Asia Pacific 2026: Tier 2, Consumer law, Argentina”
The Legal 500’s published tableThe Legal 500Tier 32026
Corporate and M&A
“The Legal 500 Asia Pacific 2026: Tier 3, Corporate and M&A, Argentina”
The Legal 500’s published tableThe Legal 500Tier 32026
Dispute resolution: Litigation and arbitration
“The Legal 500 Asia Pacific 2026: Tier 3, Dispute resolution: Litigation and arbitration, Argentina”
The Legal 500’s published table
From the Firm
What O’Farrell has published on its own site lately: news, deals, recognitions and publications. Each links to the firm.
- 2 November, 2026
news · Nov 2026
- Ministry of Economy awards tender for the sale of the State’s entire 90% stake in AySA
award · Oct 2026
- Toyota’s project to produce hybrid vehicles in Zárate has been approved for inclusion in the RIGI
news · Oct 2026
- Ministry of Economy awards tender for the sale of the State’s entire 90% stake in AySA
award · Oct 2026
- The effective date of the FAL is postponed, and the grace period is extended.
news · Oct 2026
- ENReGE registered Quintana E&P Argentina as an underground natural gas storage operator
news · Oct 2026
Record
- Jurisdiction
- Argentina
- Founded
- Not stated
- Entity source
- The firm's own website
- Firm’s site read
- 11 Nov 2026
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