Immigration attorneys represent people seeking to live and work legally in the United States, or companies seeking to sponsor foreign workers. Immigrants and visitors do not always need a lawyer, but legal representation can greatly reduce the time needed to secure high-demand visas, such as H1-B visas for visiting skilled workers, or green cards for lawful permanent residents. Immigration attorneys also represent people who are in legal trouble because of their immigration status, or in legal trouble that threatens their right to stay in the United States. Experts strongly recommend that people facing deportation or removal hearings retain an immigration lawyer.