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.
Lewisville is a city in Denton County, Texas in the U.S. state of Texas. As of the 2000 census the city had a total population of 77,737. With strong population growth continuing into the new millennium, the U.S. Census Bureau gives a 2008 population estimate of 101,624. Lewisville is one of the oldest incorporated cities (incorporated in 1925) in the northern area of the Dallas-Fort Worth Metroplex, but it remained a small rural town with just a few thousand people as late as the early 1970s.