Leonard Arpan

Leonard's legal expertise spans both commercial disputes and criminal cases.

Leonard Arpan Aritonang is an esteemed trial lawyer who leverages his extensive legal expertise to skillfully distill complex legal matters into clear, accessible positions that serve as invaluable references. This formidable ability has enabled him to consistently deliver exceptional results that exceed his clients’ expectations, even within the unpredictable terrain of Indonesia's legal landscape.


In commercial matters, Leonard's approach aims to achieve mutually beneficial solutions. For criminal cases, he provides a measured yet determined defense, with his client's best legal interests as the top priority.


Leonard is a licensed advocate and a member of Perhimpunan Advokat Indonesia (Peradi), as well as a certified administrator for bankruptcy proceedings through his membership in Asosiasi Kurator dan Pengurus Indonesia (AKPI).


For expert legal assistance, please contact Leonard at leonardarpan@lsmlaw.co.id.


Leonard has handled a number of notable cases, including:

  1. Representing The New York Times and one of its journalists in a libel lawsuit filed by the former director of a major global mining company, related to investigative reporting articles.
  2. Defending a senior executive of a multinational oil company accused of corruption through a fictitious bioremediation project to recover soil quality after an oil spill.
  3. Representing a multinational drinking water company accused of unauthorized water intake.
  4. Representing a state-owned company in a successful civil review case that overturned its prior bankruptcy status.
  5. Arranging for an international hotel chain to continue operations through a going-concern scheme during the bankruptcy of its debtor.
  6. Managing defence for Indonesian Navy's action in the pre-trial hearing regarding the seizure of a large vessel engaged in illegal fishing operations within Indonesian waters
  7. Securing the cancellation of a land certificate due to a defective sale involving a person with a mental disorder.
  8. Pioneering the removal of "suspect status" before the Constitutional Court of Indonesia, prior to the court's inclusion of suspect status as an object of pre-trial motions.
  9. Preventing the bankruptcy of a luxury apartment complex due to a restructuring petition filed by 4 purchasers.
  10. Settling a corruption case involving a multinational company where the criminal allegation was based on a disputed state-owned riverbed.