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Corporate and Finance Litigation
Leading market player in the field with over twenty-five years of experience, our Corporate and Finance Litigation team is widely recommended for its constant strive for excellence.
Our respected litigation lawyers bring unparalleled expertise to a wide array of complex local as well as crossborder litigation and arbitration matters, covering corporate, finance and commercial law disputes, and investment funds litigation.
The practice includes shareholders’ disputes, share transfer litigation, audit negligence cases and directors’ liabilities, disputes between investment funds and their investors or their service providers, as well as enforcement of financial collateral. We also deal with exequatur proceedings, recognition and enforcement of foreign court decisions and arbitration awards.
“The KLEYR GRASSO team manages to be both proactive in anticipating procedural steps and reactive when sudden developments occur.”
Chambers Europe 2026 _ Dispute Resolution
“The practice stands out for its strategic, cross-disciplinary approach that combines legal precision with commercial insight.”
Legal 500 EMEA 2026 _ Dispute Resolution
KEY CONTACT
+Marc KLEYRSenior Partner
+Donata GRASSOPartner
+Emilie WATYPartner
+Ella SCHONCKERTCounsel
+Muriel PIQUARDCounsel
+Vincent ALLENOCounsel
FAQ: How we can help
When do we get involved?
Known as skilled negotiators as well as procedural experts, our lawyers adeptly navigate from pre-litigation phases to all relevant proceedings and court applications, ensuring high-level legal representation.
At the enforcement stage, our dedicated team also intervenes in cross-border enforcement cases, including attachment proceedings and exequatur proceedings.
What about arbitration and alternative dispute resolution?
Our team is also frequently appointed to serve as lead counsel or arbitrator in significant local or international arbitrations, which strengthen our position as a trusted partner in resolving complex legal matters both in and out-of-court.
Whom do we represent?
Our litigation lawyers proudly and conscientiously assist and represent both local and international clients, including States, listed companies, multinationals, audit firms, banks, investment funds, private equity structures and individuals acting as shareholders, directors, and investors, by providing reactive and dedicated support as well as tailor-made strategic solutions in both their pre-litigation matters and existing disputes.
What sets us apart?
With a deep understanding of the clients’ needs, our lawyers treat each file with a meticulous and innovative approach.
Related News
Read the latest related news from our experts or explore our full insights which cover new laws, bills, and ongoing developments.
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The Cour de Cassation recognises the right of a minority shareholder to join proceedings as a civil party before the investigating judge in respect of the losses suffered by the company
The Cour de Cassation has just delivered a completely unprecedented decision. On 4 June 2026, it recognised the admissibility of a minority shareholder joining proceedings as a civil party before the investigating…
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A court-appointed provisional administrator cannot evade the rules and legal obligations applicable to companies
New case law Corporate and Finance litigation
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Consistent excellence and client trust reaffirmed in The Legal 500 EMEA 2026 edition
KLEYR GRASSO is pleased to announce its continued recognition in The Legal 500 Europe, Middle East & Africa 2026, reaffirming the firm’s consistent excellence and the trust placed in it by clients…
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KLEYR GRASSO reaffirmed as a Leading Law Firm in Luxembourg by Chambers Europe 2026
KLEYR GRASSO is proud to announce its continued recognition in the Chambers Europe Guide 2026, reaffirming the firm’s position among the leading law firms in Luxembourg.
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The usufructuary of shares in a public limited company (société anonyme) is not allowed to request the convening of a general meeting
Authored by Donata GRASSO, Partner and Ella SCHONCKERT, Counsel In a landmark decision rendered on 2 December 2025, the 4th Chamber of the Luxembourg Court of Appeal held for the first time…
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KLEYR GRASSO contributes to the Chambers and Partners International Arbitration 2025 Global Practice Guide
We are proud to announce that KLEYR GRASSO is the exclusive contributor for Luxembourg in the Chambers and Partners International Arbitration 2025 Global Practice Guide. In this edition, our experts Emilie Waty…
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KLEYR GRASSO strengthens key practice areas with the addition of eight new lawyers
As part of our continued growth and strategic development, and in response to the increasing demand from our clients, we are pleased to announce the arrival of eight new lawyers to our…
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KLEYR GRASSO Recognized with Top-Tier Ranking in Legal500 EMEA 2025 for Luxembourg!
KLEYR GRASSO has once again secured a Top-Tier ranking in the prestigious Legal500 EMEA 2025 for Luxembourg. This recognition underscores our firm’s dedication to excellence, client success, and legal expertise across our…
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Chambers Europe 2025 – A Renewed Recognition of Our Excellence
KLEYR GRASSO is proud to be recognized once again by Chambers and Partners in its 2025 Europe guide for its exceptional legal expertise. Our ongoing position among the top law firms in…
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KLEYR GRASSO announces major promotions effective January 1, 2024
KLEYR GRASSO is pleased to announce the promotion of ten outstanding individuals within its ranks. Effective January 1, 2024, the promotions mark a significant step in the firm's growth strategy and commitment…
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The new law on business continuity and modernising bankruptcy law entered into force on 1 November 2023
The law of 7 August 2023 on business continuity and modernising bankruptcy law (hereafter the “Law”) which implements the Directive (EU) 2019/1023 of 20 June 2019 on preventive restructuring frameworks, on discharge…
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Arbitration Reform – Highlights of the Law of 19 April 2023
The law of 19 April 2023 amending the second part, book III, heading I of the New Code of civil procedure reforming arbitration enters into force this Tuesday, 25 April 2023 (hereafter…
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Shareholder disputes – abuse of equality
In a recent decision dated 21 December 2022, no. 183/22-VII-CIV, the 7th Chamber of the Court of Appeal has confirmed that the abuse of equality (abus d’égalité), consisting for a holder of…
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A court action for dissolution of a company for just cause is an action reserved to the company’s shareholders
By a decision rendered on 2 March 2022, the 7th Chamber of the Court of appeal has now clarified that the persons having the right to apply for the dissolution of a…







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