Karen founded Art Law at Mishcon de Reya in 1995. Clients she represents, across the globe, include artists and their estates, collectors, dealers, art foundations and charities, auction houses, galleries, museums and governments. Karen advises on a wide range of art related matters such as sale and purchase of art, artists' rights, their legacy, creation and management of artists estates, disputes over attribution, authenticity and ownership, cultural heritage matters, restitution of looted cultural property and anti-money laundering regulations.
The legal directories describe Karen as 'pre-eminent in the field of art and cultural property'. She often features on 'Front Row', BBC Radio 4's flagship culture programme. Karen is quoted widely on art related legal issues and contributes to leading art publications including the Art Newspaper and Apollo. Karen is a Trustee of Camden Arts Centre and the Burlington Magazine.