If you disagree with a administrative (Korean governmental) decision, you can file a lawsuit against the administrative office within a certain period. Typical examples are revocations of licenses, suspensions of working, denial of visa issuance, and deportation decisions etc. Administrative lawsuit has to be filed within 90 days of receiving the notice but unfortunately many foreigners miss the period. If you believed you are unfairly dispossessed by the Korean government , please do not delay and knock on the door of the office of the Yeyul Lawfirm.