It is a fraud case

Your case is not that difficult, but the big issue is how to get evidence to support your story. Any lawyer who knows basic tort law and litigation will be helpful. If your English is not good enough for you to relay your story clearly, you had better find some lawyer who knows Chinese. You may locate such kind of lawyer through the local bar association. There are some websites helpping you locate the attorney, such as findlaw.com, law.com, martindale.com. Good luck.