Ernesto Belisario

Leaders in Law endorses Ernesto Belisario as our exclusively recommended Administrative Law expert in Italy. If you wish to get in touch with Ernesto  please use the contact information provided above.

Court of cassation lawyer admitted to the Bar Association of Power, he specialized with honors in Administrative Law and Administration Science at the University Federico II of Naples.

Assists companies and governments in matters related to technology law (digitalization and dematerialization, open government, open data, privacy, startup) and administrative law (procurement, construction, urban planning, public tax liability and public employment) out of court and out of court. Author of numerous publications in the areas of activity, wrote the books “The new Digital Public Administration”, “Law in the clouds: legal aspects of cloud computing” and is co-author of – among others – of the texts “The websites of Public Administrations “and” How can you open data. “He has also collaborated on some items for the “Dictionary of computer science” published by Treccani.

Since 2006, he has a blog on the Law of the new “Law 2.0” technologies and collaborates with “”, “CheFuturo”, “” and “”.

Ernesto Belisario was a lecturer in many courses and Master on legal aspects themes of innovation and digitalization (among which are: School of Public Administration, the Interior Administration School, School of Public Administration of the Umbria Region , University of Basilicata, La Sapienza University, Catholic University and Sacred Heart University of Salento).

He participates as a speaker at numerous national and international conferences on business matters.

Former President of the Club of the Italian Telematic Jurists and the Association for Open Government, is Secretary General of the Institute for innovation policies.

He was appointed by the President of ISTAT member of the Commission of Information Users Statistics and is a member of the Standing Board for Innovation and the Italian digital agenda established at the Presidency of the Council of Ministers.


Ana Kolarević

Leaders in Law endorses Ana Kolarevic as our exclusively recommended Administrative Law expert in Montenegro. If you wish to get in touch with Ana please use the contact information provided above.

Law office Ana Kolarevic was established with the vision of providing the best solution possible to its clients. Legal expert Ana Kolarevic has represented the interest of leading foreign investors in Montenegro for some time. The list of her clients extends to more than 80 percent of foreign companies and individuals who’ve started business and investment in Montenegro. The high proportion of businesses relying in her judgment stems from the fact that there are few lawyers as experienced as Kolarevic in this fast-changing part of Europe.

Kolarevic specializes in all types of corporate and commercial law, not to mention civil and administrative transactions.

Her office has an excellent team of external collaborators who are experts in finance, taxing, architecture and land surveying, to name but a few specialties. But Kolarevic’s essential unique selling point has to be her experience in operating inside a country where few outsiders are naturally confident.

“I think my clients appreciate the security I give them. They always know how they stand and always have reliable, impartial information on the basis of which they may assess their risk. These are necessary ingredients to prepare decision.”

The Kolarevic advantage:

-court representation and production of constitutional documents and drafting internal corporate contracts;

-organizing shareholder meetings and supplying advice regarding the application of the Companies Act

-Assisting in entering into funding agreements and preparing related security

-organizing share purchase procedures

-legal assistance in labor relations, including obtaining of work and residence permits for non-residence;

-preparation of contracts required for operation of business organization including privatization and due diligence, and

-transactions and activities related to urban planning and development.

The foundation of my Law Office are firm. They lie in my extensive experience in judiciary, my knowledge, professionalism and the need for justice.

For its contribution in the field of law practice, Ana Kolarevic was awarded The New Economy Legal Award for Best Business Lawyer in Montenegro for 2009 and the World Finance Legal Award for Best Lawyer in Montenegro for 2010 and 2011, while her office was awarded the World Finance Legal Award for Best Corporate and Commercial Firm in 2011.

Ana Kolarevic and her well organized team of young professionals, lawyers and associates work according to the principle of one-day-at-a-time on the issues that are within their field of competences. Mrs. Kolarevic and her team of young professionals offer clients the confidence and certainty of experience combined with the energy and tenacity of youth.


Rui Pena

Rui Pena works in administrative law, focusing on public procurement, energy and environment.

Rui was the founding partner of CMS Rui Pena & Arnaut, and is now the current Senior Partner. He founded his first law firm in 1987.

Rui Pena studied law at Universidade de Lisboa and he has been a member of the Portuguese Bar Association since 1964.

Rui was Minister of National Defence from 2001 to 2002 and Minister of Administrative Reform in 1978. In 1986, he was a Member of the Municipal Assembly of Lisbon.

In 1985 the Portuguese government asked him to bring together mediators and conciliators of the ICSID (International Centre for Settlement of Investment Disputes). Between 1976 and 1983 he was a Member of Parliament, and he was elected chairman of CDS Parliamentary Group.

CMS Rui Pena & Arnaut:

CMS Rui Pena & Arnaut is a law firm that dates back to 1964 and is firmly established in the Portuguese market.

Renowned for its proficiency, professionalism and thoroughness, CMS Rui Pena & Arnaut builds long-term relationships with its clients which are based on trust and transparency. CMS Rui Pena & Arnaut works to provide reliable, ethical and legally correct solutions for clients while striving to be creative, competitive and efficient.

Drawing on its multidisciplinary expertise, CMS Rui Pena & Arnaut organises its work teams to take account of individual client requirements. This includes predicting likely scenarios and anticipating potential problems. The goal is to provide quality legal and tax advice and contribute to the successful pursuit of clients’ business objectives.

With a strong presence in the Portuguese market, CMS Rui Pena & Arnaut is part of CMS, the largest European legal and tax service provider. CMS´ wide range of jurisdictions and experience strengthens and supports CMS Rui Pena & Arnaut´s capacity, offering strategic added-value for clients of CMS Rui Pena & Arnaut.We have our own unique culture which defines our identity and our work.


Adriana Zapata

Leaders in Law endorses Adriana Zapata as our exclusively recommended Administrative Law expert in Colombia. If you wish to get in touch with Adriana please use the contact information provided above.


Doctor of Law; Universidad Externado de Colombia, Bogotá 2010.

Master of International Law; Pantheon-Assas University Paris II Sorbonne, Paris 1991

Specialist in International Private Law, Diplôme Superieur de I’Université, Paris II (September 1989 – March 1990).

Financial Law Specialist; Universidad de los Andes, Bogotá 1985.

Lawyer; Universidad Externado de Colombia, Bogotá 1983.


Universidad de Barcelona, Research fellow (September to December 2007)

Universidad de Granada – España, World Congress of Law and Globalization (May 2005)

Kellogg, Northwestern University Negotiation Strategies for Managers (March 1995)

University of California, Berkeley, Strategic Human Resources Management (December 1994)



Universidad Externado de Colombia. Finance Government and International Relations Faculty: Lecture in International Negotiation and Procurement, 1996, 1999-2000, undergraduate

School of Law: International Procurement Sources and Private International Law, graduates since 1998 to present; II Economic Law Seminar, 1992

ta internacional de mercaderías, en: Acuerdos Internacionales de Facilitación del Comercio Internacional”. Ministerio de Justicia y del Derecho, Bogotá, 1997.

Autora “Compraventa Internacional”, en: Derecho de la Distribución Comercial. B/teca Millennio, el Navegante Editores, Bogotá, 1995.



Partner – Director, CAVELIER ABOGADOS (2010- Present)

Arbitrator, Bogotá and Medellin Chambers of Commerce (From September, 2008 – Present)

Head of the Business Law Department, Universidad Externado de Colombia (From May 1997 – Present)


Legal Vice-president and General Secretary, Banco Av Villas (1998-2007)

Partner, Consultores Internacionales (February 1997 – November 1998)

Partner, Zapata & Asociados, (January 1996 – January 1997)

Administrative Vicepresident, Avianca S.A., Sam S.A., Helicol S.A., (September 1994 – December 1995)

Administrative Vice-president, Avianca, SAM y Helicolativa (1992-1994)

Subsidiaries Division Director and Secretary of the Board of Directors, Bavaria (1988-1989)

General Secretary, Head of the Legal Department, Invercrédito S.A., (August 1987 – September 1988)

Attorney for the Legal Department, Invercrédito S.A. (April 1984 – 1987)


International Academy of Comparative Law, Henri Capitant Association

International Bar Association –IBA-

President of the Colombian Subcommittee of the CCI in Trade Practices

Member of the Drafting Committee of the New Arbitration Law 1563, 2012

Member of the Regulatory Committee of the Security interest Act. 1676, 2013

The Firm 

Founded by Germán CAVELIER in 1953, CAVELIER ABOGADOS combines experience and innovation and stands out as a leading firm in several fields of law. Using the most modern legal infrastructure and technology, the firm offers its clients legal services in both Colombia and abroad, making it a strategic partner for business development. The firm represents local and foreign clients from diverse economic sectors and industries, providing professional, comprehensive legal advice and optimal service in a timely fashion.