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.
Tracy is an unincorporated community in eastern Marion County, Iowa, United States. It lies along local roads east of the city of Knoxville, the county seat of Marion County. Its elevation is 784 feet (239 m). Although Tracy is unincorporated, it has a post office with the ZIP code of 50256, which opened on 31 January 1876. Tracy was laid out in October 1875 by Capt. Alexander F. Tracy and S. Merrill.