What kind of lawyer should I be looking for sueing freight forwarding INC?

I need to sue a freight forwarding agent in Los Angeles. What happened was I bought a car in Los Angeles and shipped it to Mongolia. And the container which was carrying my vehicle got chosen randomly in Chinese custom on its way to Mongolia. So that container got inspected there for over 2 months. Finally, Chinese custom made decision and asked to pay penalty for being chosen randomly. But the freight forwarding agent I used asked me to pay that penalty. They asked me to pay 4500$. My question is I need to sue them, what kind of lawyer should I be looking for for this kind of situation?