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.
Martinsville is an independent city surrounded by the county seat of Henry County, Virginia, United States. The population was 15,416 at the 2000 census. The Bureau of Economic Analysis combines the city of Martinsville with Henry County for statistical purposes. The paper clip-shaped Martinsville Speedway, the shortest track in NASCAR stock car racing [0.526 miles (0.847 km)] and also one of the first paved "speedways", being built in 1947, is located just outside the city in the town of Ridgeway. Martinsville is the principal city of the Martinsville Micropolitan Statistical Area, a micropolitan area that covers Henry County and the city of Martinsville. The micropolitan area had a combined population of 73,346 as of the 2000 census.