Martha Visser has been involved in several high-level (international) cases in art-related matters, handling court proceedings as well as claims for restitution of artworks before the Dutch Restitution Committee, which advises the Dutch government on the return of Nazi-looted art. She focuses on the fields of art law and intellectual property law and is a skilled litigator. Martha studied law at the University of Maastricht, and earned her LLM degree after completing her masters in private law at the University of Amsterdam. Her thesis regarded the international law aspects of the restitution of cultural property in the Netherlands.
During her studies, she also completed courses at the University of Salamanca in both the law and history faculties. She also completed an internship in the permanent delegation of the Netherlands at UNESCO in Paris, where she specialised in the UNESCO cultural heritage conventions. Martha has been practising as an attorney since August 2015.