With a comprehensive background in M&A and banking & finance, Marcus has been specializing in dispute resolution since 2006. He serves as legal counsel in Swedish and international arbitrations, as well as in commercial litigation. Marcus has also significant expertise in appearing before Swedish administrative courts in appeals of government agency decisions. On occasion, Marcus accepts arbitrator appointments in domestic and international proceedings.
Marcus was a founding partner of former disputes firm Frank, which has since merged into Sandart & Partners. During a brief hiatus from his legal practice, he gained firsthand experience in product development at an AI startup.