Miguel Ángel Márquez Serrano abogados S.A.S
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Focusing exclusively on labour and social security law, Miguel Ángel Márquez Serrano abogados S.A.S stands out for the ‘speed and effectiveness of its response’. Offering dedicated services in consulting, training, collective negotiations and litigation, the team is noted for its focus on clients in Colombia’s eastern regions (particularly Santander), though it remains active nationwide. Key contacts include firm founder Miguel Ángel Márquez, who is highlighted as an ’excellent lawyer’; Fabian Ospina, who leads the litigation practice; and supporting associate Daniela Barón.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘The team of lawyers is excellent and very competent. The speed and effectiveness of its response is what sets this firm apart from others. Miguel Angel Márquez is an excellent human being — ethical, honest, and empathetic — and an excellent lawyer.’
- ‘The firm stands out from others due to its personalised assistance and the possibility of immediate attention and response.’
Key clients
Acueducto Metropolitano de Bucaramanga (AMB)
Supermercados Más por Menos
Work highlights
Represented AMB – Acueducto Metropolitano de Bucaramanga in a collective negotiation process.


