info@oaulegal.com
  +90 212 246 11 19

KEY PEOPLE

CONTACT US
Att. E. Sefa Öncel
Founding Partner
Bar Admissions : Istanbul Bar
Practice Areas : Litigation and debt collection, retainer, commercial and transportation law
Telephone : +90 212 246 11 19 / +90 532 323 66 95
Fax : +90 212 231 42 17
E-mail : sefa.oncel@oaulegal.com

EDUCATION

Istanbul University Faculty of Law
LL.B.

EXPERIENCE

Since the founding of our firm in 1973, Att. E. Sefa Öncel advised clients on almost all fields of law and took active role in all stages of the judiciary. 

Throughout his career, Att. Sefa Öncel has worked with numerous companies and conglomerates from various sectors on a retainer basis, providing both daily consultancy and litigation services. He was also the Chief Legal Counsel of Zorlu Group of Companies from 2000 to 2006.

Thanks to 50 years of continuous experience and know-how, Att. Sefa Öncel is a highly experienced litigator and co-leading our litigation department.

Att. E. Sefa Öncel also has specialized expertise in administrative lawsuits (zoning and repeal of governmental acts), international transportation, tax law and bankruptcy law.

 

 

Att. Erman Öncel, LL.M. Esq.
Founding Partner
Bar Admissions : Istanbul Bar and New York State Bar
Practice Areas : M&A, corporate, IT, M&A-related and shareholder disputes, commercial
Telephone : +90 212 246 11 19 / +90 534 518 95 05
Fax : +90 212 231 42 17
E-mail : erman.oncel@oaulegal.com

EDUCATION

Columbia University Law School, New York - USA
Corporate Law, LL.M.
Yale University, New Haven - USA
2 Months American Law Certificate Program
Istanbul Bilgi University Faculty of Law, Istanbul - Turkey
LL.B. (with full merit scholarship)

EXPERIENCE

Leading the M&A department of our firm, Att. Erman Öncel advises international and local clients in all types of M&A transactions including  share/asset acquisitions, joint ventures, mergers, spin-offs, minority shareholder squeeze outs, carved-out asset deals, IP and technology transfers, sophisticated corporate re-organizations as well as private equity and venture capital investments. 

Throughout his career, Att. Erman Öncel has taken part in numerous large-scale multi-jurisdictional deals representing both the buy and the sell sides. He provides a full scope service participating in all stages including structure planning, risk assessment and price negotiation.

Att. Erman Öncel is also highly experienced in shareholder disputes and M&A related lawsuits with a good success track record.

He  also assists clients on a daily basis in the areas of IT, fin-tech, employment, IP and international commercial law by providing practical solutions to clients' complex or daily legal problems.

Att. A. Buğra Aydın, LL.M.
Founding Partner
Bar Admissions : Istanbul Bar
Practice Areas : Competition, compliance, employment, media and commercial
Telephone : +90 212 246 11 19 / +90 532 595 56 05
Fax : +90 212 231 42 17
E-mail : bugra.aydin@oaulegal.com

EDUCATION

Istanbul Medipol University School of Law, Istanbul – Turkey  
Ph.D. Candidate
University of Westminster School of Law, London - UK       International Commercial Law, LL.M. (with distinction)
Marmara University School of Law, Istanbul –Turkey
LL.B

EXPERIENCE

Att. Buğra Aydın is expert at competition and compliance law having attended numerous disputes and investigations. He has represented local and international clients in numerous merger control notifications, written and oral defenses and leniency applications before the Turkish Competition Authority.

Att. Buğra Aydın also conducted intra-company investigations and prepared compliance reports regarding white collar crimes in order to ensure that foreign and local companies are operating in compliance with Turkish laws. He has also published several academic articles regarding competition law and international law.

Att. Buğra Aydın has broad experience and is serving clients on a daily basis in media, IT, real estate, international commerce, retail and maritime. He has provided assistance on a wide spectrum to international media & entertainment companies both for their day-to-day legal operations in the areas of labor law, corporate law and press law, as well as assisting M&A transactions and applications made to public institutions.

Att. Buğra Aydın is also currently a lecturer of commercial law at Istanbul Medipol University School of Law. He is leading the competition, compliance and co-leading the employment law departments of our firm.

Att. Cemal Umut Uyğun
Founding Partner
Bar Admissions : Istanbul Bar
Practice Areas : Commercial, employment, contracts, litigation, and debt recovery
Telephone : +90 212 246 11 19 / +90 533 276 19 49
Fax : +90 212 231 42 17
E-mail : cemal.uygun@oaulegal.com

EDUCATION

Marmara University Faculty of Law
LL.B.

EXPERIENCE

Att. Cemal Umut Uygun advises many international conglomerates from various sectors on a retainer basis by providing practical solutions to their complex or daily legal problems.  His focused industries are real-estate, retail, maritime, mining, manufacturing and industrial solutions.

Also co-leading our litigation and debt collection departments, Att. Cemal Umut Uygun and his team of highly qualified lawyers provide a one-stop shop services to international clients in all legal issues they encounter in Turkey.

Att. Elif Gökdağ Öner, LL.M.
Partner
Bar Admissions : Istanbul Bar
Practice Areas : Competition and compliance
Telephone : +90 212 246 11 19
Fax : +90 212 231 42 17
E-mail : elif.gokdag@oaulegal.com

EDUCATION

Istanbul University School of Law, Istanbul – Turkey  
Ph.D. Candidate (Public Law) (Thesis: “Turkish and EU Law Comparison
on Decision Making Patterns)

King's College School of Law, London - UK    

İstanbl Bilgi University Faculy of Law, Istanbul –Turkey
LL.B (GPA: 3.3/4.0, ranked 4th)

EXPERIENCE

Assisting and advising our firm in competition law; Att. Elif Gökdağ Öner has represented and defended many clients before the Turkish Competition Authority and Courts on numerous competition investigations and represented clients in merger control and exemption filings. 

Att. Elif Gökdağ Öner has extensive experience in automotive, steel, cement, energy, media, construction equipments, FMCG, tobacco, banking and finance industries. Att. Elif Gökdağ Öner advised leading blue chip automotive companies on all aspects of antitrust law and ensured their antitrust compliance on an extensive scale from dealer networks to HQ and prepared custom-made compliance manuals based on the specific industry dynamics. She advised clients on structuring of dealership organizations, drafted distribution, supply and dealership agreements in accordance with the international antitrust legal framework and negotiated these agreements with the clients’ distributors and international suppliers.

Att. Elif Gökdağ Öner is a Ph.D. candidate in Public Law at İstanbul University. She achieved her LL.M. from Kings College London by completing her thesis under the supervision of Prof. Richard Whish. 

Att. Amine Tuğçe Duman, Esq.
Of Counsel
Bar Admissions : Istanbul Bar and New York Bar
Practice Areas : Regulatory, tax and international commercial law
Telephone : +90 212 246 11 19
Fax : +90 212 231 42 17
E-mail : amine.duman@oaulegal.com

EDUCATION

Fordam Univeristy School of Law, New York - USA
LL.M.
Ankara University Faculy of Law, Istanbul –Turkey
LL.B  (graduated with honors)

EXPERIENCE

Assisting our firm in regulatory and tax issues, our of counsel Att. Amine Tuğçe Duman is expert in IT, telecommunication, fin-tech, e-commerce and software sectors.

She also advises clients in international commercial and trade law focusing on negotiation of commercial contracts in media, IT and electronic communications sectors, as well as in consumer protection, customs and daily corporate-related matters.

She graduated with honors from Ankara University Law Faculty in 2009 and completed LL.M. degree in International Business and Trade Law at Fordham University with the highest honor, magna cum laude in 2011.

Att. Melis Buhan Öncel, LL.M.
Counsel
Bar Admissions : Istanbul Bar
Practice Areas : IP, employment, immigration and tax
Telephone : +90 212 246 11 19
Fax : +90 212 231 42 17
E-mail : melis.buhan@oaulegal.com

EDUCATION

Istanbul University School of Law, Istanbul – Turkey  
LL.M. (tax law) 

İstanbul Bilgi University Faculy of Law, Istanbul –Turkey
LL.B 

EXPERIENCE

Att. Melis Buhan assists our firm's international clients in the areas of tax, employment, IP and foreign investment, having worked with numerous international clients in high volume projects over the years.

Att. Melis Buhan is highly specialised in employment law and has advised and represented many major local and international companies regarding employment and labour law issues, social security and payroll matters, work and residence permits and on requirements of Turkish employment legislation during and following the establishment of new corporate entities in Turkey. 

She is also providing specialised services with respect to tax and IP related matters for many years and she has resolved many disputes with a good success record. She is also author of several international publications and attended the conferences in numerous countries as a spokesperson.

All information contained on this website have been provided for information purposes only and do not constitute advertisement, proposal or legal advice of any kind. All information may be subject to change without notice. Please contact us for a professional advice.
CONTACT US
info@oaulegal.com
(+90) 212 246 11 19
(+90) 212 231 42 17
Maslak Mah. Ahi Evran Cad.
Polaris Plaza No:21 Kat:15 D:63
Sarıyer-Istanbul, Turkey