Lasse specialises in both contentious and non-contentious intellectual property and IT law. He has wide-ranging experience in strategic intellectual property issues, litigation, commercial contracts and transaction arrangements involving intellectual property and IT, such as outsourcing, procurement and licensing. He also advises on issues related to the law of associations.

In 2004 Lasse worked as a visiting attorney in London for a major international law firm.

Lasse has contributed to many major publications in the field of intellectual property and acts as a country correspondent for both the European Intellectual Property Review and Entertainment Law Review. He has also contributed to books on litigation and the law of associations.

Lasse has complemented his graduate studies in London.