I agree with the above – try the govt route first.
In the US, lawyers often handle cases on a contingency basis (ie. for a percentage of the amount recovered if successful (usually 30-40%), with no attorneys fees owed if unsuccessful, although the client is usually liable for the attorney’s “costs,” such as $ for postage, photocopying, transportation, filing fees, etc, regardless of the outcome).
Even in the US, however, attorneys will only handle a case on a contingency basis if (a) the attorney feels there is a good chance of success and (b) the amount in dispute makes it worthwhile. If the dispute might have to go to trial and involves less than US$20-30,000 or so, it will probably be impossible to find an attorney to handle the case on a contingency basis, because it’s just not worth all the time and effort for such a small sum.
If an attorney won’t handle the case on a contingency basis, basically two other options may be available: hourly or for a flat fee. Most attorneys prefer to handle cases on an hourly basis, because it’s hard to estimate in advance what would be a reasonable flat fee and unexpected complications often arise through no fault of your own attorney. In addition, most attorneys handling a case on an hourly basis will require a deposit of a few thousand dollars (which is perfectly reasonable, as clients often refuse/fail to pay fees that they agreed to in advance).
As for Taiwan, it’s illegal for attorneys to handle a case on a contingency basis here, so it will have to be either hourly or a flat rate. Unless you are a doctor, lawyer, engineer or high level executive, I suspect that the attorney fees you would pay in this case will exceed the amount of your potential recovery. Which is why I agree that the govt administrative route is probably your best bet.
However, if the amount in dispute is very large and you feel you really should speak with an attorney, then go ahead and do so. Most attorneys will give you an initial consultation for free, and if the attorney is any good (and is honest) he or she will give you an honest assesment of whether it’s worth hiring legal counsel.