New head of practice, foreign legal counsel join KNP LAW


Olivér Koppány

Csaba Rusznak has joined KNP LAW Nagy-Koppány Lencs & Partners to lead the firms dispute resolution practice group, with Olivér Koppány rejoining the firm as foreign legal counsel, according to a press release sent to the Budapest Business Journal.

Koppány is a member of the U.S. District of Columbia Bar and a registered foreign advisor with the Budapest Bar Association. Oliver is a dual American-Hungarian citizen currently working on issues involving cross-border pharmaceutical transactions, including CEE regulatory approvals. He is also actively involved in advising clients on complex cross-border commercial real estate transactions.

He is also responsible for several business development tasks at KNP LAW, in addition to learning management skills and assisting in the day-to-day operations of the firm. Currently, he is actively working with Kornélia Nagy-Koppány, who stated, “Olivér brings a new energy into the office. He is a part of the new generation of lawyers who bring a progressive outlook and dynamic approach to our management and operation."

Prior to returning to Hungary, he gained experience throughout law school under Willkie Farr & Gallagher’s Global Trade & Investment Practice Group where he assisted clients with current and upcoming economic sanctions and export controls concerns, anti-money laundering concerns, international trade policy, and negotiations concerns and handled matters involving the Committee on Foreign Investment in the United States. Prior to law school, Oliver spent time with both Hogan Lovells and Foley & Lardner.

"Growing up, I spent my afternoons after school in the conference room of KNP LAW, and it feels surreal to be back after planning this moment for so many years. I am thrilled to be in the city, the amazing Palazzo Hunyadi where KNP moved last year and surrounded by the historical Buda Castle area. It is a true privilege to work with such an amazing and motivated team," Koppány said about his relocation to Hungary.

Csaba Rusznak

Rusznak is a U.S.-qualified international arbitration lawyer who specializes in representing parties in investment arbitration proceedings, as well as in litigation before U.S. courts.  Previously, he worked as an international arbitration lawyer at Arnold & Porter, a pre-eminent law firm in the United States. In May 2020, Hungary appointed him to the ICSID Panel of Arbitrators and Conciliators (as a conciliator). Earlier in his career, Csaba served as a law clerk to several courts in Louisiana and West Virginia, which gave him a deep understanding of U.S. court practices and procedures.

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