Chuyên gia Immigration

O-1 Visa

The O-1 visa is a US nonimmigrant visa for individuals who possess extraordinary ability in their field — defined as the top of their occupation — in science, arts, education, business, or athletics.

H-1B Visa

The H-1B is a US nonimmigrant work visa for specialty occupation workers — typically requiring at least a bachelor's degree in a relevant field — sponsored by a US employer.

Green Card (Permanent Resident Card)

A green card (officially the Permanent Resident Card) grants foreign nationals lawful permanent residence in the United States — the right to live and work permanently without requiring a separate visa. Green card holders can apply for US citizenship after 3–5 years of residency.

Naturalization

Naturalization is the legal process by which a foreign national becomes a US citizen. To qualify, applicants must generally have been a lawful permanent resident for 3–5 years, meet continuous residence and physical presence requirements, demonstrate good moral character, pass an English and civics test, and take an oath of allegiance.

F-1 Visa

The F-1 visa is the most common US student visa, allowing foreign nationals to pursue full-time academic study at a USCIS-approved institution. F-1 students may work on campus and, after completing a degree, qualify for Optional Practical Training (OPT) to work in the US for up to 3 years in STEM fields.