Attorney Lutz Auffenberg advises financial service providers regarding regulation and licenses required (such as a BaFin license). German law requires those licenses for most businesses dealing with cryptocurrencies (such as Bitcoin and Litecoin). Lutz is one of three WINHELLER attorneys that have worked on challenging domestic and international Bitcoin cases. The three of them have counseled a number of prominent companies in the Bitcoin space and helped them, among other things, with establishing their exchanges, answering their tax related questions and running their contests. Lutz is also knowledgeable about the ‘ZAG’ (Zahlungsdiensteaufsichtsgesetz, German law for payment providers). Besides German, Mr. Auffenberg also speaks English and French.