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.
Beaver is a borough in and the county seat of Beaver County, Pennsylvania, United States, at the confluence of the Beaver and Ohio Rivers. As of the 2000 census, the borough population was 4,775, having dropped from 5,641 in 1940. Robert Linn was the mayor of Beaver for 58 years (1946–2004), making him the longest serving mayor in the United States. The borough was the home of influential U. S. Senator "Boss" Quay.