Mathias’ practice includes insolvency law, where he is not only a sought-after adviser especially to financial creditors in the guarantee and banking sectors but also an accomplished litigator, not least in actions over avoidance and management liability. He also works in restructuring, sometimes serving as appointed restructuring administrator and other times representing a buyer.

He also has specific expertise in M&A transactions, successfully managing general M&A processes and tackling an array of company law issues.
Mathias is also an experienced adviser on real estate transactions, advising on due diligence, obligation to offer, registration, owners' associations, etc.
He is also a skilled adviser on matters of project development, consulting not only on general project development (especially buyer-side) but also on turnkey contracts, seeing the work through right from signing of the contract to completion and handover.

In his work, Mathias particularly appreciates the many and varied tasks putting him in close contact with many different players and stakeholders and providing him with an enjoyable mix of legal and practical challenges.