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KLEYR │ GRASSO launches new tax practice.

As of July 1, 2022, Lionel BONIFAZZI and Valeria ERCOLINI join KLEYR GRASSO and become the new tax team within the firm.

Lionel BONIFAZZI has been a tax partner in a leading Luxembourg law firm since 2016 and focuses in particular on international corporate tax. He assists local and international asset managers and entrepreneurs respectively engaged in the investment fund industry and in cross-border restructurings or M&A transactions. Admitted to the Luxembourg Bar in 2006, Lionel is recognised as a highly recommended lawyer in the 2022 editions of the legal directories Legal500 and Leaders League for his expertise in tax and corporate tax law. He is also an author of numerous publications on corporate and tax law.

Valeria ERCOLINI has important experience in advising international clients on the tax aspects of corporate reorganisations and refinancing, as well as on the structuring and implementation of domestic and cross-border mergers and acquisitions. Clients appreciate her responsiveness and have great confidence in her judgment, as she always takes into account the business objectives of her clients. She is a regular speaker at conferences organized by the Institut Luxembourgeois des Administrateurs (ILA). Prior to joining KLEYR GRASSO, she was a director in the corporate and tax practice groups of another leading Luxembourg law firm, and before that, she worked with one of the Big Four audit firms in Luxembourg in the corporate services department.

Managing Partner Marc KLEYR commented: “The establishment of our tax practice is another step in our strategy of growth to a full-service firm. Further to the welcoming in June of a new Investment Funds team, we are now completing our client services offer by the tax practice that supports the activities of both our Investment Funds and our Corporate & M&A teams. Having a dedicated tax practice has become critical to meeting the demand from local and international clients who need to ensure they comply with the ever-changing tax laws and regulations. We warmly welcome Lionel and Valeria and look forward to working with them.

Lionel added: “I am thrilled to be joining KLEYR GRASSO and contributing to its expansion and its continued success. The firm offers large opportunities for my practice; it has a strong market presence, an excellent reputation in all practice areas, and has become one major actor in the Luxembourg legal market. With my team, we will endeavor to provide a seamless high-quality service to both, all of our existing clients and KLEYR GRASSO’s demand.



KLEYR GRASSO is an independent full-service business and litigation law firm serving international and domestic clients for over 28 years in Luxembourg with the highest professional standards and entrepreneurial culture. Its teams of strongly committed partners and lawyers of different nationalities support local and international clients throughout their projects from inception to implementation.

The multilingual lawyers advise local and multinational companies from all industry sectors, leading institutional investors, private equity houses, banks, investment funds, and numerous other businesses in corporate M&A, restructuring and insolvency, private equity, capital markets, banking and finance, investment funds, real estate and construction, social and employment, dispute resolution and insurance and reinsurance… and now also in tax.



Image de Lionel BONIFAZZI


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    Valeria ERCOLINI



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