Civil and commercial litigation and arbitration: deals with a wide array of civil and commercial disputes, including disputes arising from SPAs, loan agreements and investments in financial instruments, real estate and lease disputes, as well as tort, matrimonial and family law disputes.

Has a particular specialization in corporate disputes, having advised and represented shareholders, commercial companies and directors in cases pertaining to the enforcement of minority shareholders’ rights, challenges of resolutions of corporate organs (BoD and GA) and director liability.

Has also represented domestic and foreign companies in several domestic and international commercial arbitrations, as well as in Greek court proceedings for the annulment, recognition and enforcement of arbitral awards.

Between the years 2015 and 2017, lectured on English Contract Law in the context of the University of London International Programmes (LLB).

"I enjoy litigation and arbitration primarily because of the variety and challenges that they entail. Each case has its particularities; the practitioner is called upon to understand different industries, identify underlying interests and strike an appropriate balance between the legal and the factual."


Athens, 2006




Harvard Law School, LLM, 2013
University of Cambridge, LLM in Commercial Law, 2007 (Scholarship from the Academy of Athens; Cambridge European Trusts Bursary)
National and Kapodistrian University of Athens, LLM in Civil Law, 2006
National and Kapodistrian University of Athens, LLB, 2004 (Scholarships and Award from the State Scholarships Foundation; Award from the Stasinopoulos Administrative Law Foundation)

Konstantinos Papadiamantis and Theodora Souma are extremely client-oriented and responsive. They are go-to lawyers in complex situations.’

The Legal 500 EMEA 2021