Vast knowledge and expertise from mergers & acquisions to commercial disputes.

FIRM OVERVIEW

OA advises domestic and international clients in matters where structure, regulatory clarity, and strategic judgment are decisive. Based in Türkiye — a jurisdiction positioned at a critical economic and geopolitical crossroads — we serve as a trusted reference point for complex transactions, evolving regulatory frameworks and sensitive disputes.

Our practice spans mergers and acquisitions, financing, tax structuring, compliance and high-stakes litigation. We integrate transactional sophistication with dispute capability to ensure that legal architecture supports capital, governance and long-term commercial resilience across jurisdictions.

We operate as a unified partnership, bringing together complementary disciplines to deliver cohesive and carefully engineered solutions. Our ambition is not defined by scale, but by reliability and experience — to be the firm clients rely on when clarity, precision and institutional steadiness are essential — and when their most consequential decisions demand sound judgment and resilient legal frameworks.

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OUR SERVICES

We provide legal advice with our team of expert attorneys specifically on the following areas. Click to expand each section to learn more.

- Project Financing
- Debt Restructuring and Securitization
- Distressed Acquisitions
- Ship, Yacht and Port Financing
- Corporate and Private Jet Financing
- Insolvency and Bankruptcy Planning
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•Drafting and negotiation of commercial agreements
•Representation in commercial and corporate disputes
•Shareholder and partnership disputes
•Financial and tax-related litigation
•Administrative proceedings and regulatory challenges
•Arbitration and alternative dispute resolution
•Injunctive relief, attachment and enforcement proceedings
•White-collar matters and corporate liability proceedings
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•IP registrations, portfolio management and opposition proceedings
•Advisory on trademarks, industrial designs, patents and copyrights
•IP portfolio audits and risk assessments
•IP advisory in mergers, acquisitions and investment transactions
•Licensing, assignment and technology transfer agreements, including confidentiality and know-how arrangements
•Brand protection and enforcement actions
•Unfair competition claims and domain name disputes
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•Executive agreements and compensation structuring
•Long-term incentive plans, equity options and phantom share arrangements
•Non-compete, confidentiality and trade secret protection frameworks
•Unlawful termination, compensation and unfair competition disputes
•Social security law and collective bargaining advisory
•White-collar matters and corporate investigations
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•Initial public offerings (IPOs) and capital increases
•Debt securities issuances (including bonds, notes and structured finance instruments)
•Private placements and qualified investor offerings
•Prospectus preparation, offering documentation and disclosure obligations
•Establishment and structuring of investment funds and collective investment vehicles
•Capital markets regulatory compliance and filing processes
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•Technology contracts, software development and licensing arrangements
•SaaS, platform and digital services agreements
•FinTech and PayTech regulatory advisory, payment services and e-money compliance
•Data protection compliance programs and cross-border data transfer mechanisms
•Compliance with artificial intelligence, digital services and platform governance regulations
•Cybersecurity, data breach management and digital risk frameworks
•Legal due diligence in technology- and finance-driven mergers, acquisitions and investment transactions
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- Mergers, share transfers and asset transfer transactions
- Strategic investments and private equity transactions
- Cross-border mergers and acquisitions
- Joint venture structuring
- Share Purchase Agreements (SPAs) and Shareholders’ Agreements (SHAs)
- Structuring of governance and control rights
- Legal due diligence processes
- Pre-transaction structuring and risk assessment
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•Vessel sale and purchase transactions
•Ship and aircraft financing
•Yacht flag selection and registration advisory
•Aircraft sale and purchase transactions
•Maritime law disputes
•Operational and crew-related disputes
•International trade and sanctions advisory
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•Project development & real estate investment
•Large-scale commercial real estate transactions
•Financing-linked real estate transactions
•Expropriation and zoning disputes
•Family asset structuring and real estate portfolio management
•Advisory to international investors
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•Merger control filings, exemption applications and negative clearance notifications
•Company- and sector-specific compliance programs and in-house training
•Compliance audits, internal reviews and dawn raid simulations
•Competition Authority investigations and on-site inspection processes
•Carbon Border Adjustment Mechanism (CBAM) compliance
•Foreign state aid and subsidy advisory
•Sustainability-related regulatory compliance
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•Company formations and corporate structuring
•Structuring of general assemblies, board governance and shareholder arrangements; preparation of corporate resolutions
•Advisory support in relation to annual activity reports, group affiliation reports, sustainability reports, independent audit reports and transfer pricing documentation
•Share transfers, capital increases, liquidation and insolvency processes
•Corporate restructurings and reorganization transactions
•Corporate governance and compliance advisory
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•Tax controversy and compliance
•Domestic and international tax structuring
•Mergers and acquisitions, tax due diligence (Tax DD)
•Tax investigations
•Public procurement law
•Customs & Administrative disputes
•Administrative remedies in international sanctions matters
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OUR TEAM

The success and proven track record of OA is formed by acarefully selected team of experts, Zekeriya Başar Özbilen as the leading figures. Our company culture is built upon attentivenessand a meticulously detail-oriented approach that provides thebest suited outcome in every case and for every client.

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