Osterling Abogados > Lima, Peru > Firm Profile

Osterling Abogados

Peru > Insurance Tier 1

Osterling Abogados is ‘the leading firm in the Peruvian market’ with ‘a high degree of technical specialisation and a deep knowledge of the insurance market’. Strong on both contentious and non-contentious matters, the practice acts for leading insurers, foreign reinsurers and large international law firms on regulatory issues, licensing, and litigation and arbitration. It often handles claims involving contractual, professional or tort liability issues, and also caters to the corporate and transactional needs of clients. Enrique Ferrando  co-heads the team and brings considerable knowledge of the insurance regulatory framework and commercial issues to the practice. Fellow co-head and experienced litigator Gabriel Loli  is particularly experienced in claims arising in the construction and engineering sectors. Principal associates Ibeth Torres  and  Rabeth Pareja are also recommended, with Torres handling commercial and regulatory issues in the sector and Pareja specialising in the submission of liability insurance claims. Silvia Otárola   joined as senior associate from an in-house role at Liberty Seguros in Otober 2021.

Practice head(s):

Enrique Ferrando; Gabriel Loli


‘As a team they present organised and efficient work‘.

‘I believe that Osterling Abogados is the leading firm in the Peruvian market, without question. Not only because of the accumulated experience of its team, but also because of its high degree of technical specialisation and its deep knowledge of the insurance market‘.

‘They are a safe choice for handling complex matters, whether litigation, commercial or regulatory‘.

‘Its approach is strategic since it includes all the possible scenarios that might arise in each case‘.

‘As a whole, the team stands out for its technical and legal solvency and its knowledge of the market and the industry‘.

‘Enrique Ferrando’s knowledge of insurance law is exceptional, perhaps the best specialist in the Peruvian market; he is also a brilliant strategist‘.

‘Enrique Ferrando has extensive experience in resolving high-stakes disputes‘.

‘Gabriel Loli has consolidated over the years; he is highly technical, analytical, and provides accurate and timely answers on very complex issues‘.

Key clients

Rimac Seguros y Reaseguros

Mapfre Perú Compañía De Seguros Y Reaseguros

La Positiva Seguros

(BLP) Sompo International

Pacífico Seguros



Arthur J Gallagher Perú Corredores de Seguros

Marsh Rehder Corredores de Seguros


Allianz Global Corporate & Specialty Se

Axa Xl

Avla Insurance Group

Mitsui Sumitomo Insurance Company

Nationale Borg Reinsurance

Ohio National Peru

Work highlights

  • Advised APESEG (private sector association gathering leading insurance companies) to assess and make remarks on a draft regulation issued by the Peruvian insurance authority for information security management and cybersecurity.
  • Defended market leader Rimac Seguros y Reaseguros in an arbitration in which Luz del Sur claims failed to comply with a $30m indemnity payment resulting from a loss that occurred during the construction of an underground hydroelectric power plant in Cuzco, Peru.
  • Advised Sompo Seguros Mexico on all the corresponding procedures for its licensing and qualification as a reinsurance company before the Peruvian Banking, Insurance and Pension Funds Authority (SBS).

Peru > Dispute resolution Tier 3

Enrique Ferrando oversees the dispute resolution practice at Osterling Abogados, along with Mauricio Martínez, who handles litigation for financial institutions and real estate clients, and Gabriel Loli, who co-leads in arbitral matters – such as the team’s recent representation of insurer Rimac against a power distribution company. The team also handles construction arbitration regarding public works contracts and product liability litigation. Key support is provided by principal associate  and procedural expert Scilia Flores (corporate and civil litigation; contentious administrative matters); and seniors Malgorzata Judkiewicz-Garvan, who specialises in international arbitration; and Silvia Otárola, an October-2021 hire from Liberty Seguros who handles construction disputes. Former senior Miguel Delgado left to establish MDR Abogados in October 2021.

Practice head(s):

Enrique Ferrando; Mauricio Martínez; Gabriel Loli


‘I believe that Osterling Abogados is the leading firm in the Peruvian market, without question. Not only because of the accumulated experience of its team, but also because of its high degree of technical specialisation and its deep knowledge of the insurance market’.

‘It is a safe choice both for handling complex and high-value litigation. Its approach is strategic since it includes all the possible scenarios that derive from each case’.

‘The team stands out for its technical and legal solvency and its knowledge of the market and the industry’.

‘Enrique Ferrando’s knowledge of insurance law is exceptional, perhaps the best specialist in the Peruvian market; he is also a brilliant strategist. He has extensive experience in resolving high-stakes disputes’.

‘Gabriel Loli is highly technical, analytical, and provides accurate and timely answers on very complex issues. Very competent also in the solution of complex disputes’.

‘Rabeth Pareja has been an important addition and brings a unique vision of the business, due to his vast experience as an in-house lawyer’.

Key clients

Rimac Seguros y Reaseguros

Cobra Instalaciones y Servicios

Prieto Ingenieros Consultores

Clyde and Co


Imagina Grupo Inmobiliario

Mercuria Peru

Inversiones Hausser

Caja Municipal de Ahorro y Crédito CMAC Piura


Los Portales

Derrama Magisterial

Inversiones Castelo Branco

Merck Peruana

Asociación Civil Educativa EDU-MAX

Germán y Hernán Anduaga

Work highlights

  • Defended Cobra Instalaciones y Servicios in an arbitration filed against Lima’s Water and Sewerage Company (SEDAPAL), in which penalty overcharges amounting to $17m are claimed.
  • Representing Vitapro in a court action for the granting of an injunction against Frutos del Mar, seeking to allow the client to commence litigation claiming payment of $5m, plus damages.
  • On behalf of Los Portales, defended 200 householders affected in a legal action in which right of ownership is disputed.

Peru > Intellectual property Tier 3

Clients praise the ‘well-prepared and knowledgeable‘ team at Osterling Abogados, which specialises in IP matters relating to the pharmaceuticals, music and video game, and hotel and restaurant industries. Department head Arturo Tello ‘always offers solutions and alternatives’ when handling trade mark and patent portfolio advisory work, as well as any related disputes including copyright and unfair competition claims. The firm also has a burgeoning anti-counterfeiting practice, with associate Jean-Carlo Costa an integral part of the recent expansion, which has led to the group representing fashion houses including Hugo Boss and Prada.

Practice head(s):


‘Very good practice. They follow instructions to the letter.’

‘Very efficient and job very well done. Lawyers are available to answer questions.’

‘Their speed in response, their close follow-up and their high professional levels stand out. In addition, they take charge of cases in such a way that one can rest easy on their work because, in addition, they achieve favorable results.’

‘I highlight, without the slightest doubt, Arturo Tello, a professional whose criteria is always well-founded; he is available 24/7, very reliable in his management and personally follows up on the cases in his charge. Jean-Carlo Costa also stands out, and provides decisive support to Arturo.’

‘Arturo Tello always offers solutions and alternatives.’

‘Their answers are fast and well-supported, they emit clear and complete concepts. The attention is first class.’

‘Well prepared and knowledgeable, excellent attitude and agile.’

Key clients




Rimac Seguros y Reaseguros

Frida Kahlo (Heirs)

Kimberly Clark Worldwide

Harley Davidson

Dr. Martens International Trading and Dr. Maertens Marketing


Prosegur Group

Toy Cantando

GMG Nicaragua

Grapa Company Limited

Riot Games

Mercado Libre

Peru > Labour and employment Tier 4

Clients appreciate the ‘personalised accompaniment and extensive knowledge on different topics related to labour law‘ at Osterling Abogados, which has particular experience advising on the hiring and transfer of personnel, and compliance with employer-side obligations. Practice heads Ary Alcántara Valdivia and Joyce Cieza Mora are ‘extraordinary attorneys‘ who specialise in arbitration proceedings, and also handle matters regarding social security and the prevention of sexual harassment at the workplace. Sectors of activity include the mining, fishing, insurance and technology industries.


‘The lawyers of Osterling are not only a law firm for us, but also our strategic partners – they collaborate in a very close and professional manner.’

‘The Osterling labour law team is identified by its closeness and follow-up with the client. The personalised accompaniment and extensive knowledge on different topics related to labour law, make it feel like a close team that is always available to answer queries in a clear way but with the required technical and legal support.’

‘Both Joyce Cieza Mora and Ary Alcántara Valdivia feel close and always available to attend and respond to queries that arise, with the appropriate level of urgency and depth.’

‘Ary Alcantara Valdivia: we appreciate her solidity, availability, knowledge, experience.’

‘One of Osterling’s greatest strengths is its dedication to service and the ability to always put the customer at the top of their list. They understand our business and are able to assertively manage our needs.’

‘Joyce Cieza Mora and Ary Alcántara Valdivia are extraordinary attorneys.’

‘It is a very compact team, they are always aware of our different cases.’

‘Lawyers are very cordial and kind in their attention, they always do their best. I have never received bad service.’

Key clients

Gold Fields La Cima

Solana Comercial (Dollarcity)

Arthur J. Gallagher Perú Corredores de Reaseguros

Arthur J. Gallagher Perú Corredores de Seguros

Pesquera Hayduk

Sanofi Aventis del Perú

Alcon Pharmaceutical del Peru

Cignium Technologies

Disan Peru

Asociacion Civil Santa Maria

Sociedad Minera Corona


Unimed del Peru

Becton Dickinson Del Uruguay Sucursal Peru

Asociación Civil San Juan Bautista

Sociedad Minera Austria Duvaz

Prima AFP

Work highlights

  • Advised Gold Fields La Cima on compliance with obligations related to remote work and the implementation of new atypical working days.
  • Advised Solana Comercial (Dollar City) on the hiring and obtaining work residency for approximately 40 foreign workers of various nationalities under the health emergency declared because of Covid-19.
  • Advised Arthur J. Gallagher Peru Corredores de Seguros and Arthur J. Gallagher Peru Corredores de Reaseguros on compliance with obligations regarding the prevention of workplace sexual harassment and carried out periodic and legally mandatory training.

Established in 1980, Osterling Abogados is a leading full-service Peruvian law firm widely acknowledged in domestic and cross-border markets. For nearly four decades, we have been delivering legal services in line with a philosophy that combines a strong focus on our clients’ goals, proven international expertise, and an in-depth understanding of the complexities of the local law, which allows us to offer optimal, timely and practical advice and innovative solutions.

Much more than just legal advisors, we aim to become a strategic partner for each of our clients and to be alongside them across all stages of their business cycle, whether it is in helping prevent potential risks to affect their operations, implementing new business strategies, or successfully tackling either daily or unforeseen legal challenges. Accordingly, the firm covers the key practice areas of law related to business operation, such as banking, construction and real estate, corporate and M&A, data protection, dispute resolution, IP, insurance, labour, life sciences, public law, and taxation, among others.

Despite the wide range of practices integrated into its scope of services, Osterling Abogados maintains the personalised approach in clients’ assistance, and for which it has been so well known since its beginnings. The solid experience of our senior practitioners is balanced in practice by an energetic and committed young team, which ensures sound analysis, strategic approach and creative solutions in addressing sophisticated matters within a dynamic and rapidly changing environment.

The firm advises local and international companies from various industries, including banking, beauty and healthcare, fishery, food, (re)insurance, luxury brands, mining, real estate, retail and technology, among others. Representative clients include Sanofi, Alcon, Mapfre, Gallagher, Grupo Bimbo, Hayduk, Rímac Seguros y Reaseguros, Cabify, Grupo Breca, Mercuria, Nyrstar, Gol TV, Procesadora Sudamericana, Los Portales, among others.

Main areas of practice
Banking, corporate finance and capital markets: The firm has solid expertise in finance and capital market instructions. The team is widely experienced in advising clients for contractual negotiation, asset securitisation, syndicated loans, bonds, secured notes, project finance, and debt roll-over private agreements, among other instructions.

Corporate/mergers and acquisition: Osterling Abogados has extensive experience advising local and international clients in a wide range of instructions, whether transactional or consultancy. The practice group stands out for its remarkable capabilities in handling mergers, acquisitions, spin-offs, joint ventures, divestments and corporate reorganisations. Also, it is well versed in consultancy regarding complex contractual matters, which includes drafting, reviewing and interpretation. In addition, it provides support in an array of non-transactional instructions related to the course of business.

Construction: The firm is regarded among the leading construction teams within the industry. Our practice group advises public and private owners and contractors in addressing all the legal challenges that may arise from the design, development, financing, performance and management of major construction contracts. When disputes occur, our practitioners are exceptionally skilled in settling claims, whether by ADR or arbitration.

Dispute resolution: With our clients’ best interests in mind, our practice group will work for securing the most favourable outcomes at the earliest possible stage of the dispute that they may be dealing with. We are acknowledged as solid litigators, with a high success ratio at all litigation and arbitration scenarios, but also as thoughtful strategists and skilled negotiators. The firm also counts on top-tier arbitrators and legal experts appointed in domestic and international arbitration procedures as part of the bench.

Intellectual property: Well-established practice with a solid reputation and expertise providing high-quality advice on a wide range of IP matters, including patent and trademark prosecution, enforcement, portfolio management, anti-counterfeiting, and litigation, whether administrative or judicial. The crew stands out because of its in-depth knowledge of applicable regulations, accurate opinions, and tailored service. Firmly focused in pharmaceutical, beauty and fashion, the client roster includes market-leading names such as GSK, Sanofi, L’oreal, Harley Davidson, Rimac Seguros, Prosegur –to mention a few–, but also consists of a wide range of domestic and multinational clients from several other industries.

Insurance and reinsurance: Our practice group has been recognised as the undisputed market leader for far longer by both clients and peers. It comprises all aspects of the (re)insurance practice: incorporation, underwriting, distribution, claims, regulatory affairs, dispute resolution, among others. Our integrated view, responsiveness, accurate advice, technical proficiency and sound knowledge of the law and regulations are praised by clients, among of which we retain significant players, such as Rimac Seguros, A.J. Gallagher, Mapfre Global, La Positiva, Apeseg, Allianz, Qbe, Zurich, Starstone, among others.

Life sciences: The firm provides advice on regulatory matters for the pharmaceutical, veterinary, cosmetic and food sectors. Our team has broad experience defending claims and proceedings with the Peruvian Environmental Health and Food Safety Agency. We also advise leading pharmaceutical laboratories for performing clinical trials within the framework of current legislation.

Labour and employment: We provide comprehensive advice to protect our client’s interests when it comes to the legal aspects relating to human resources management. The practice group covers all labour and employment law fields, including preventive advice, labour policy-making, collective bargaining processes, safety and occupational health matters, immigration procedures and permits, and dispute resolution, either through ADR or litigation.

Public law: A highly integrated team with a solid reputation as reliable advisors on public bidding and procurement, complex regulatory issues, and administrative litigation. The practice brings together the experience of senior-level practitioners who excel in public law matters and critical specialities, such as (re)insurance, dispute resolution, extractive industries, and construction, among others. This added value allows them to provide precise advice on administrative and regulatory matters, but without losing sight of the particularities of the industry in which the clients develop their businesses.

Real estate: The firm has extensive experience handling real estate mandates and disputes drawn mainly from the mining sector. Said expertise has been capitalised by gathering a very specialised team for providing suitable solutions for development, construction and acquisition matters. Depending on the complexities of each mandate, we brought other specialists on board, which assure the most comprehensive advice for every case.

Tax: An endless search for value-added solutions that better fit our clients’ goals best describes the core of the practice group. Our practitioners stand out as per their expertise in a full spectrum of taxation matters that include tax planning, audits, customs and instructions relating to daily tax management. They also work closely with the corporate team in structuring complex transactions from a tax perspective. The firm also holds a 92% success rate in tax litigation for the last seven years.

Insurance and Reinsurance Enrique Ferrandoeferrando@osterlingfirm.com+511.6118282
Insurance and Reinsurance Gabriel Loligloli@osterlingfirm.com+511.6118282
Construction Enrique Ferrandoeferrando@osterlingfirm.com+511.6118282
Labour & Employment Ary Alcantaraaalcantara@osterlingfirm.com+511.6118282
Labour & Employment Joyce Ciezajcieza@osterlingfirm.com+511.6118282
Dispute Resolution Mauricio Martínezmmartinez@osterlingfirm.com+511.6118282
Intellectual Property Arturo Telloatello@osterlingfirm.com+511.6118282
Intellectual Property Ximena Souza Ferreiraxsouza@osterlingfirm.com+511.6118282
Tax Jose del Castillojdelcast@osterlingfirm.com+511.6118282
Tax Gonzalo Echevarriagechevarria@osterlingfirm.com+511.6118282
Real Estate Angello Riveraarivera@osterlingfirm.com+511.6118282
Banking Enrique Ferrandoeferrando@osterlingfirm.com+511.6118282
Corporate Enrique Ferrandoeferrando@osterlingfirm.com+511.611.8282
Commercial Arbitration Enrique Ferrandoeferrando@osterlingfirm.com+511.611.8282
Commercial Arbitration Gabriel Loligloli@osterlingfirm.com+5116118282
Public Law Enrique Ferrandoeferrando@osterlingfirm.com+511.6118282
Public Law Gabriel Loligloli@osterlingfirm.com+511.6118282
Corporate Finance Enrique Ferrandoeferrando@osterlingfirm.com+511.6118282
Mergers & Acquisition Enrique Ferrandoeferrando@osterlingfirm.com+511.6118282
Life Sciences Ximena Souza-Ferreiraxsouza@osterlingfirm.com+511.6118282
ARY ALCÁNTARA photo ARY ALCÁNTARAAry Alcántara is head partner of Osterling Abogados. Leads the Labour practice…
JOYCE CIEZA photo JOYCE CIEZAJoyce Cieza partner of Osterling Abogados. Member the Labour practice area.
JOSÉ DEL CASTILLO photo JOSÉ DEL CASTILLOPartner. Head of the Tax practice group
ENRIQUE FERRANDO photo ENRIQUE FERRANDOManaging partner. He heads the Insurance & Reinsurance, Dispute Resolution, and Corporate…
Malgorzata (Gosia) Judkiewicz-Garvan photo Malgorzata (Gosia) Judkiewicz-GarvanSenior associate
GABRIEL LOLI photo GABRIEL LOLIPartner. Co-head of the Insurance & Reinsurance practice group
XIMENA SOUZA-FERREIRA photo XIMENA SOUZA-FERREIRAHead of the Life Sciences practice group and co-head of  the Intellectual…
ARTURO TELLO photo ARTURO TELLOSenior Partner and head of the IP and Competition practice group.
IBETH TORRES photo IBETH TORRESSenior associate
Partners : 8
Associates and other fee-earners : 19
Insuralex (Global Insurance Lawyers Group)