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Marit advises and litigates on commercial contracts and liability matters, including liability of financial institutions and ESG related issues. Marit has vast experience in class action litigation and advising on collective settlements. Marit is part of the firm wide ESG focus group and regularly litigates cases before the Dutch courts.

For more than four years, Marit was a board member of the Association of Young Litigators. She regularly publishes in scientific journals.

Recent matters that Marit has worked on include representing:

- a broker in a Dutch class action on alleged manipulation of interest rate benchmarks
- a group of car dealers in various Dutch class actions against multiple claim organisations relating to diesel emission devices in cars
- a public utilities company in a Dutch class action on public interests
- the former CEO of Airbus SE in a Dutch class action regarding shareholders’ claims
- various financial institutions in legal proceedings on alleged unfair consumer contracts

Contributions

Memberships

Dutch Bar Association (NOvA)
Association for Young Litigators (VJP)
Dutch Civil Procedural Law Association (NVvP)
Association for Financial Law (VvFR)
Association for Corporate Litigation (VCL)

Qualifications

Law Firm School, Nijmegen, 2019 (with honours)
LLM Private Law, Utrecht University, 2016 (with honours)
LLB Dutch Law, Utrecht Law College, Utrecht University, 2015

What others say

"Marit Bosselaar is a key player. Great litigator. Great team."
Legal 500 - EMEA (2026)
"Marit Bosselaar is an excellent lawyer and enjoyable to work with."
Legal 500 - EMEA (2026)
"Marit Bosselaar is the one to watch; she's very knowledgeable on class action law and has a tremendous drive."
Legal 500 - EMEA (2026)
"Both stand out for providing clear, commercial guidance in high pressure situations."
Legal 500 - EMEA (2026)
"Marit Bosselaar is a real talent."
Legal 500 - EMEA (2025)
"We experience our cooperation with Marit Bosselaar as very pleasant with a high level of substantive and strategic alignment."
Legal 500 - EMEA (2025)
"Sidney Berendsen and Marit Bosselaar are the stars of the show. They are great. Amazing litigators and very commercial."
Legal 500 - EMEA (2025)
"Kitty Lieverse and Marit Bosselaar are real regulatory experts in the field of finance to consumers in the Netherlands. They offer pragmatic solutions beyond just the regulatory or legal aspects."
Legal 500 - EMEA (2024)
"Kitty Lieverse and Marit Bosselaar are experts in the regulatory supervision area. They are well informed of supervision laws and regulations and how supervisory authorities approach certain matters. They have a strong network and expertise and understand our commercial business and goals."
Legal 500 - EMEA (2024)
"Marit Bosselaar is clever and stands out from her peers."
Legal 500 - EMEA (2024)
Marit Bosselaar named "Key lawyer" in Banking and Finance: Financial Services Regulatory
Legal 500 - EMEA (2024)
Marit Bosselaar named "Key lawyer" in Dispute Resolution: Commercial Litigation
Legal 500 - EMEA (2024)

Marit Bosselaar

Partner - Attorney at Law

marit.bosselaar@loyensloeff.com

Amsterdam

Dutch, English

<p>Marit Bosselaar, attorney at law, is a member of the Dispute Resolution expert group in our Amsterdam office. She focuses on class actions and commercial litigation, including financial and ESG litigation.</p>

Marit advises and litigates on commercial contracts and liability matters, including liability of financial institutions and ESG related issues. Marit has vast experience in class action litigation and advising on collective settlements. Marit is part of the firm wide ESG focus group and regularly litigates cases before the Dutch courts.

For more than four years, Marit was a board member of the Association of Young Litigators. She regularly publishes in scientific journals.

Recent matters that Marit has worked on include representing:

- a broker in a Dutch class action on alleged manipulation of interest rate benchmarks
- a group of car dealers in various Dutch class actions against multiple claim organisations relating to diesel emission devices in cars
- a public utilities company in a Dutch class action on public interests
- the former CEO of Airbus SE in a Dutch class action regarding shareholders’ claims
- various financial institutions in legal proceedings on alleged unfair consumer contracts