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.
Rillito is an unincorporated community in Pima County, Arizona, United States, completely surrounded by the town of Marana. The largest business in the community is Arizona Portland Cement and the community has had a post office (ZIP code 85654) since the 1920s. There is a regional park and recreation center (Rillito Vista Community Center) in the middle of the community.