Immigration law determines whether a person is an alien, the rights, duties, and obligations associated with being an alien in the United States, and how aliens gain residence or citizenship within the United States. It also provides the means by which certain aliens can become legally naturalized citizens with full rights of citizenship. Immigration law serves as a gatekeeper for the border of the nation, determining who may enter, how long they may stay, and when they must leave. Immigration lawyers represent persons seeking temporary and permanent residency (green cards) status in the U.S., those interested in obtaining U.S. citizenship through a process called naturalization, and clients facing deportation and removal. Immigration attorneys may also represent businesses seeking to secure temporary visa status for foreign employees.
Leon is a town in Cattaraugus County, New York, United States. The population was 1,380 at the 2000 census. The name is derived from the former Kingdom of León in Spain, though it is pronounced like the American first name, "Lee-on. " The Town of Leon is on the western border of the county, northwest of the City of Salamanca.