Legal advice and representation, with precision and personal attention.
The Trechlis – Mazaraki Law Office provides legal services to individuals, businesses and foreign nationals, from Public Law and Energy to Real Estate, Immigration Law and Mediation. In Greek, French and English.
Areas of practice.
Ten areas in four groups. Where indicated, the lawyer responsible is named.
Public & Regulatory Law
Public & Administrative Law
Administrative disputes, administrative appeals and judicial remedies, dealings with the public administration, public procurement, legal opinions.
Lead lawyer: S. Trechlis · S. Mazaraki (Hellenic Court of Audit)Energy Law & Regulation
Licensing of energy and renewable energy (RES) projects, electricity and natural gas markets, proceedings before the Regulatory Authority for Energy, Waste and Water (RAAEY), offshore energy and the EEZ.
Lead lawyer: S. TrechlisPersonal Data Protection
GDPR compliance, privacy policies, support for data protection officers (DPO).
Lead lawyer: S. TrechlisCivil Law & Real Estate
Civil Law
Contracts, law of obligations, civil disputes, advice to individuals.
Lead lawyer: S. Trechlis · S. MazarakiReal Estate Law
Sales and purchases, title searches, leases, land registry (cadastre).
Lead lawyer: S. MazarakiIntellectual Property
Copyright, licensing of works, protection of creators.
Lead lawyer: S. MazarakiCriminal & Immigration Law
Criminal Law
Defence and representation of civil parties in criminal cases, criminal complaints and reports to the prosecutor.
Foreign Nationals, Immigration & Asylum Law
Residence permits, asylum procedures, appeals.
Lead lawyer: S. MazarakiDispute Resolution & Translation
Mediation & Alternative Dispute Resolution
Mediation in private disputes, the Mandatory Initial Mediation Session (MIMS), consumer and online procedures.
Lead lawyer: S. TrechlisLegal Translation (EL · FR · EN)
Contracts, pleadings, judgments and EU law texts, using EU terminology.
Lead lawyer: S. TrechlisResolving disputes out of court.
A structured, confidential process in which the parties themselves seek a solution with the help of a neutral third party.
Mandatory Initial Mediation Session (MIMS)
Information for the parties on the process, where the law requires it before proceedings are brought before a court.
Civil & commercial disputes
Mediation in contractual, commercial and civil disputes between individuals and businesses.
Consumer & online procedures
Alternative and online resolution of consumer disputes.
The lawyers of the office.
Select a lawyer to view the full profile: education, experience and areas of practice.
Semeli Mazaraki
Lawyer
Semeli Mazaraki is a lawyer in Athens and holds a master’s degree in Philosophy of Law from the National and Kapodistrian University of Athens.
She completed her traineeship at the Bank of Greece and the Hellenic Court of Audit and has practised law independently since 2022, with a focus on real estate law and the law on foreign nationals and immigration.
Areas
- Real Estate LawSales and purchases, title searches, leases, land registry (cadastre)
- Foreign Nationals, Immigration & Asylum LawResidence permits, asylum procedures, appeals
- Intellectual PropertyCopyright, licensing of works, protection of creators
- Civil LawJointly with S. Trechlis
Education
- LL.M. in Philosophy of LawNational and Kapodistrian University of Athens · 2021–2023 · grade 8.4
Interests
- Refugee Law & Migration Law
- Philosophy, Music and Composition
Sergios V. Trechlis
Lawyer · Accredited Mediator · Translator
Sergios V. Trechlis is a lawyer in Athens, a member of the Athens Bar Association and a mediator accredited by the Ministry of Justice.
He holds three postgraduate degrees, in Public Law (Athens and Bordeaux) and in Energy (University of Piraeus), and has many years’ experience in law offices and at the Regulatory Authority for Energy, Waste and Water (RAAEY, formerly RAE). He provides legal services to businesses and individuals in Greek, French and English, and also translates legal and literary texts.
Education
- M.Sc. in Energy: Strategy, Law & EconomicsUniversity of Piraeus · 2016–2018
- LL.M. in Public LawNational and Kapodistrian University of Athens · 2014–2015
- Master (LL.M.) Droit Public SpécialiséUniversité Montesquieu – Bordeaux IV · 2014–2015
- Law degree (LL.B.)National and Kapodistrian University of Athens · 2012
Certifications & Training
- Accredited MediatorMinistry of Justice
- Mediator training, 28th course (40 hours)Prometheus Athens Mediators' Training Centre (A.K.K.E.D.) · 2016
- Out-of-Court Debt Settlement Mechanism & Banking MediationPrometheus Athens Mediators' Training Centre (A.K.K.E.D.) · 2017
- Alternative & Online Resolution of Consumer DisputesADR Point · 2020
- DPO – Data Protection OfficereuroTRAINING · 2018
- Legal Translation and EU TerminologyEl-Translations · 2016
- Literary Translation Workshop, Level 1 (with distinction) & Level 2Institut Français d'Athènes · 2013–2015
Professional experience
- Legal Counsel, Regulatory Authority for Energy, Waste and Water (RAAEY, formerly RAE)2022–2023
- Metaxas & AssociatesPublic Law · Energy Law
- Law offices of Siavelis, Spyropoulos, Trechlis, Kanellopoulos–ZervasCivil Law · 2010–2022
Literary translations
- S. A. Cosby, «Οι αμαρτωλοί στάζουν αίμα» (All the Sinners Bleed)Gutenberg · 2025 · from English
- Denis Diderot, excerpt from «Τα αδιάκριτα κοσμήματα» (Les Bijoux indiscrets)in Amour. Ερωτική Ανθολογία · Αιώρα · 2016
- J. Paulhan & M. Proust, excerpts (Le Guerrier appliqué; Le Temps retrouvé)in Θραύσματα πολέμου · Κέλευθος · 2018
M.Sc. dissertation: ‘The exploitation of offshore energy and the EEZ regime. Legal framework and licensing: Greece, Cyprus, Israel, Egypt’.
Write to us.
Please indicate whether you are writing to the office or to a specific lawyer. Do not include sensitive information in your first message.
- Telephone
- +30 694 698 6370Sergios V. Trechlis
- strechlis@gmail.comSergios V. Trechlis
- linkedin.com/in/sergiostrechlis