The Chinese investors in Motor Sich have hired three well known international law firms to pursue their claim against Ukraine for $3.5 billion in compensation for being blocked from taking over the aircraft engine manufacture. As reported by their Ukrainian partner, DCH, the firms are: WilmerHale, DLA Piper and Bird & Bird. Arzinger will act as an advisor on Ukrainian law in international arbitration. DLA Piper was in the headlines last week when it was announced that one of their Washington partners, Doug Emhoff, will leave the firm next month to avoid conflicts of interest. He is the husband of Kamala Harris, who is to be sworn in as Vice President on Jan. 20.