Green card and visa law is a legal and an official procedure for providing permanent residency in a nation, with which an individual can enjoy all the rights as a citizen of that country. This procedure I, commonly and popularly used in US, as after getting the green card or having lawful permanent residency as an individual’s immigration status, he can stay and work on a permanent basis as he is granted the immigration benefits officially.
Green card holders must obey all laws of the United States, their state, and their localities. LPRs (lawful permanent resident) must also file federal and state income tax returns. 18 to 25-year-old male LPRs must register with the Selective Service.
Obtaining a Green Card : Foreign nationals obtain lawful permanent resident status mainly in one of two ways. They either immigrate through a family member or through employment. Other ways to obtain a green card include obtaining an investor visa or through the diversity lottery. Green Cards is registration receipt cards is called "green cards," are issued to aliens who qualify as lawful permanent residents as proof of their status.
For family and employment-based immigrants, a third party sponsors the immigrant by petitioning the USCIS. Employment-based immigrants must also obtain a labor certification from the Department of Labor. Once USCIS has approved the immigrant petition, the immigrant must wait for an immigrant visa number to become available from the State Department. Because the State Department caps : immigrant numbers each year, most immigrants must wait a long time for their immigrant number. However, a U.S. citizens parents, spouse, and unmarried children under the age of 21 may receive an immigrant visa number immediately. For Expert consultation on Green Card law you can, take advice from Green Card lawyer or Green Card Attorney in your area.