Profile
Work Department
Position
lldefonso Arenas advises financial institutions, debt funds, private equity entities and large groups of companies on all kinds of financial transactions, including acquisition finance, corporate finance, project finance, real estate finance, issuance of bonds with private placement, restructurings and distressed debt transactions.
Career
lldefonso joined Pérez-Llorca as a partner in 2018. Before joining the firm, he worked as a legal director for five years in the Banking and Finance practice at a global law firm in Madrid.
Languages
Memberships
Education
Law degree (2004) and Business degree (2005) (Universidad Pontificia Comillas (ICADE)). Executive MBA (IESE Business School 2014).
Content supplied by Pérez-Llorca
Testimonials
Collated independently by Legal 500 research team.
‘They compare well with any of the big players in this industry.’
‘Technical skills and total commitment. Isabel Villa is a rising star.’
‘The banking and finance team at Pérez-Llorca is extraordinary. Their exceptional personal qualities are complemented by a deep technical knowledge of law, business, and the market.’
‘The team stands out for its human qualities, availability, and deep knowledge of the sector.’
‘The Ander Valverde-Eugenio Marín partnership works like clockwork. Their technical knowledge and work ethic are outstanding.’
‘Great professionals with great dedication to their work.’
Key clients
- Citi Brookfield Bank of America Merrill Lynch Ares Management Tikehau Capital ING Bank Banco Santander CaixaBank Lazard Genesis Care

