Oikonomou & Associates Law Office is an Athens based practice founded in 2000 and led by Thomas Sp. Oikonomou, Attorney at the Supreme Court. The firm operates from a central office in downtown Athens and a suburban office in Melissia, handling litigation and advisory mandates across civil and criminal matters for private individuals, professionals, businesses, and residents abroad.

The practice concentrates on family law, real estate transactions and lease disputes, wills and inheritances, and criminal defense including electricity theft cases. It also supports select corporate matters, notably in aviation. The team has advised on the establishment of an aircraft maintenance station at Athens International Airport and has longstanding collaborations with international companies, while Thomas Oikonomou was included in 2016 on the commercial section of the British Embassy’s list of recommended Greek lawyers.

Client service is structured around a clear, client centered model. Consultations are held directly with the head lawyer by appointment, either in person or via video call. Matters are scoped with practical advice, realistic risk and cost assessments, and strategic planning, with an emphasis on accessibility, timely communication, and thorough preparation at every procedural stage.

About Δικηγορικό Γραφείο ΟΙΚΟΝΟΜΟΥ & ΣΥΝΕΡΓΑΤΩΝ

Founded in 2000


Practice areas
Lawsuits & Disputes
Family
Real Estate
Private Client
Criminal Defense
Corporate & Commercial

Languages spoken
English

Social media

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Practice areas

Lawsuits & Disputes

Professional legal services in Lawsuits & Disputes.
ADR Mediation & Arbitration
Appeal
Class Action
General Litigation
Ethics and Professional Responsibility
Commercial Litigation
Antitrust Litigation
Restructuring & Insolvency

Family

The firm represents clients in consensual and contested divorces, child custody and residence arrangements, parenting time, and spousal or child maintenance. It prepares the required documentation, negotiates settlement terms where feasible, and advocates before Greek family courts, aligning procedural steps with the client’s objectives and timetable while safeguarding children’s interests and financial security.
Adoption
Child Abuse
Child Custody
Child Support
Child Visitation
Collaborative Law
Divorce & Separation
Domestic Violence
Father's Rights
Marriage
Military Divorce
Same Sex & LGBT
Annulment

Real Estate

The practice advises on property sales and purchases, residential and commercial leases, and landlord tenant disputes including eviction and rent arrears actions. Services include contract drafting, due diligence on titles and encumbrances, coordination with notaries and registries, and management of required certificates and municipal or tax documentation, aiming for compliant, timely closings and effective enforcement when disputes arise.

Private Client

The team assists with wills, probate, acceptance or renunciation of inheritance, and distribution of estates. It guides heirs through formalities with notaries, land registry or cadastre filings, and tax authorities, and addresses cross border issues for clients living abroad, with the goal of protecting estate assets, meeting statutory deadlines, and minimizing exposure to inherited liabilities.

Criminal Defense

The firm defends individuals in misdemeanor and felony matters and represents complainants where appropriate. It has specific experience in electricity theft cases, addressing both the grid operator’s civil claims and related criminal proceedings. The approach includes early case assessment, evidence review, challenges to technical findings or calculations, negotiation of settlements where viable, and courtroom advocacy.

Corporate & Commercial

The practice supports companies on formation, regulatory and licensing steps, commercial contracting, and ongoing legal matters, with notable experience in aviation projects. Work has included corporate setup, facilities and lease arrangements, and regulatory interfaces for an aircraft maintenance operation at Athens International Airport, alongside continuing advisory support for international operators active in Greece.