OREANDA-NEWS. November 26, 2007. Interros Company has selected companies to act as legal and financial advisors for the deal on acquiring Michail Prokhorov’s stake in MMC Norilsk Nickel, Interros' press service reported. International company Debevoise & Plimpton llp is assigned the legal consultant, while Citigroup Global Markets Ltd has become the financial consultant of Interros.