DSM Avocats à la Cour > Luxembourg, Luxembourg > Firm Profile

DSM Avocats à la Cour
BP 2648, 1026 LUXEMBOURG

Luxembourg > Real estate and construction Tier 2

Real estate is a core area of focus for independent law firm DSM Avocats à la Cour and the firm has developed deep market knowledge and connections with core stakeholders in the space, as a result of its involvement throughout the life cycle of office, commercial and residential projects. Key to the firm’s success in the area is the work of ‘outstanding’ team head Mario Di Stefano, who takes a hands-on approach to work in the space and provides a partner-led service on behalf of clients, from securing acquisition of the land, advice on zoning/environmental issues, lease negotiations and divestment of the property.

Practice head(s):

Mario Di Stefano


‘The firm provides speedy and effective legal advice with good, organised teamwork. It is highly sophisticated and provides prompt responses.’

It is a dynamic team.’

The outstanding Mario Di Stefano is reliable, very responsive and provides practical solutions.’

Work highlights

  • Advised EuroCaution, a Luxembourg insurance broker specialized in providing a broad range of real estate guarantees to real estate sector professionals in Benelux.
  • Counsel for ICN on its real estate development projects including acquisitions, development, construction and leasing contracts, structuring of financing and securing of group financing through various entities, real estate acquisitions and setting up partnerships with various actors in the real estate sector.

Luxembourg > Dispute resolution Tier 3

At DSM Avocats à la Cour, team head Mario Di Stefano provides ‘responsive, very hands-on and detail oriented’ advice to clients across a range of commercial disputes, including in the context of contentious real estate and construction matters.

Practice head(s):

Mario Di Stefano


‘They understand the business rationale behind the dispute and what is at stake and put the necessary efforts on the case.’

‘Mario Di Stefano is responsive, very hands-on and detail oriented.’

Key clients

Rizzani de Eccher

Patrimundi 1869

Laboratoires Réunis Luxembourg



PM International


Wagner Group

Groupe Rollinger

Fiduciary Tucci & Partners



IKO Real Estate

P&P Promotions

Work highlights

  • Representing a major construction company in a dispute with a sub-contracting company.
  • Defending Laboratoires Réunis on a highly mediatized case.
  • Representing a Luxembourgish real estate developer before Luxembourg administrative tribunal following an administrative decision proposing to designate some buildings as historical monuments.

Luxembourg > Commercial, corporate and M&A Tier 5

DSM Avocats à la Cour has ‘deep knowledge of Luxembourg law and displays a pragmatic and highly responsive approach’ on behalf of corporates and funds  across a range corporate and commercial matters, including on M&A and joint venture structuring. Headed by the ‘very hands-on’ Mario Di Stefano and the ‘very responsive’ Renaud Le Squeren  much of the work relates to real estate matters.

Practice head(s):

Mario Di Stefano; Renaud Le Squeren


The firm has deep knowledge of Luxembourg law and displays a pragmatic and highly responsive approach.

‘Mario Di Stefano is quick to answer, very hands-on, pays attention to details and has a good sense of humour.’

‘Renaud Le Squeren is a very experienced lawyer with excellent skills and is always very responsive.’

Key clients

Vantage Data Centers

International Chemical Investors

PM International

Wagner Group


Keystone Group

Luxembourg Capital

IKO Real Estate




FlibTravel International

Laboratoires Réunis

Cascade Lab


Digital Tech Fund

Work highlights

  • Assisted Wagner Group in numerous acquisitions and divestments.
  • Assists Vantage Data Centers with its Luxembourg-related transactions, group restructuring transactions in EMEA, intragroup financing, bank financing, as well as on management needs on a day-to-day basis.
  • Advised Digital Tech Fund, a joint public-private seed fund managed by Expon Capital, for €1m funding round investment in Cascade Lab, a Luxembourg-based Fintech/Regtech providing administrative, compliance and governance solutions for companies under AML/KYC laws.
Photo Name Position Profile
Alban Colson photo Mr Alban Colson Partner – Avocat à la Cour
Mario DI STEFANO photo Mr Mario DI STEFANO Managing Partner – Avocat à la Cour and Rechtsanwalt
Marie-Paule GILLEN photo Ms Marie-Paule GILLEN Partner – Avocat à la Cour
Renaud LE SQUEREN photo Mr Renaud LE SQUEREN Partner – Avocat à la Cour
Alex PHAM photo Dr Alex PHAM Partner Tax – Avocat à la Cour

DSM Avocats à la Cour has long been a member of several major international legal networks allowing us to partner with more than 590 top quality independent law firms around the world with expertise in a multitude of practice areas.

We maintain a close relationship with them and can count on their prompt support abroad at any time.

Given that our international counterpart firms are independent law firms as we are, they provide us a wide selection of alternatives from which to choose.

Capital markets: Structured finance and securitisation

“They are always available and reliable.”

Bank lending: Borrower side

“Quick, pragmatic and solution oriented.”

Investment funds: Real estate funds

“Very proactive and solution-driven.”

Corporate M&A

“Very quick, reliable and solution-oriented.”

“Mario Di Stefano is a very serious and competent lawyer and has a very deep knowledge in the sector of company law and M&A. Moreover, he has a great ethical sense, great flexibility, promptness in offering answers and collaborative spirit”

“‘Renaud Le Squeren: smart mind, shows great experience in leading transactions, always very responsive and friendly”

Project development: Infrastructure

“The experience and expertise of the firm’s team is unrivalled, and the quality of the work is superb. They are obviously highly knowledgeable in real estate matters and they give us reliable and sound advice.”

Real Estate

“DSM Avocats à la Cour is fast and reliable and goes straight to the point.”

“It is an efficient, pragmatic and competent team.”

Corporate Tax

“Alex Pham singled himself out by providing in a characteristically low-key demeanor an incredibly sharp and detailed legal advice”

Dispute Resolution

“They understand the commercial issues/realities and can advise me on what really matters”

Mario DI STEFANO, Managing Partner – Avocat à la Cour, DSM Avocats à la Cour

In this interview, Managing Partner Mario DI STEFANO shares how DSM Avocats à la Cour is staying ahead of the competition by leveraging their expertise in key practice areas, adopting new technologies, and making strategic changes to benefit clients.

What do you see as the main points that differentiate DSM Avocats à la Cour from your competitors?

DSM Avocats à la Cour differentiates itself from competitors through its people, a boutique structure and personalized approach. As a medium sized law firm, we provide tailor-made legal solutions to and build close relationships with our clients. Our lawyers have a deep understanding and longstanding experience of Luxembourg’s legal system and business environment, and our multilingual team is equipped to handle complex cross-border matters. Our clients appreciate our responsiveness, pragmatism, knowledge of their industry and commitment to achieving their objectives. Finally, we place strong emphasis on building long-term relationships with our clients.


Which practices do you see growing in the next 12 months? What are the drivers behind that?

We expect to see continued growth in several of our core practice areas over the next 12 months, including corporate, sustainable finance, life sciences and digital innovation. These areas are being driven by Luxembourg’s strong economic performance and because the technology continues to transform both the legal industry and our clients’ businesses.


What’s the main change you’ve made in the firm that will benefit clients?

One of the main changes we’ve made is to invest in our technology infrastructure to improve our efficiency and client service. We have implemented new software to streamline document management and automate certain tasks, allowing us to focus on providing high-quality legal advice.


Is technology changing the way you interact with your clients, and the services you can provide them?

Yes, it is. We are constantly exploring new technologies that can help us deliver more innovative, efficient, and cost-effective legal services. We have implemented several digital tools that allow us to collaborate more effectively with our clients, such as AI supported document management, secure document sharing platforms and online video conferencing. We have also expanded our expertise in areas such as cybersecurity and data privacy to help clients navigate emerging risks in a rapidly evolving digital landscape.


Can you give us a practical example of how you have helped a client to add value to their business?

One recent example of how we added value to a client’s business was in advising it on a complex cross-border M&A transaction. Our deep knowledge of the Luxembourg regulatory environment enabled us to identify potential obstacles early on and work with the client to find creative solutions that enabled the deal to proceed smoothly. We also provided strategic advice on post-merger integration, which helped the client to maximize the benefits of the transaction and achieve its business objectives.


Are clients looking for stability and strategic direction from their law firms – where do you see the firm in three years’ time?

Yes, they are. In three years’ time, we see DSM Avocats à la Cour continuing to provide high-quality legal services to our clients while adapting to the changing business and regulatory landscapes. We will continue to invest in our people and technology to ensure we remain at the forefront of legal innovation and meet our clients’ evolving needs.