US citizens who are 21 years or older may sponsor their siblings for residency in the F4 category. The siblings need only share one parent in common to qualify.
Filing Form I-130 is the petition that demonstrates the relationship between siblings as well as establishes the priority date. There is a numerical limitation on the number of siblings of US citizens that can immigrate to the United States each year. The US Department of State’s Visa Bulletin is a database of priority dates in various visa categories, and you can check it here- https://travel.state.gov/content/travel/en/legal/visa-law0/visa-bulletin.html
If you are interested in sponsoring your sibling for residency, you should consult with an experienced family immigration attorney who can perform a thorough screening of your immigrant sibling’s immigration history to ensure a proper filing. Contact us at Bashyam Shah LLP to schedule the consultation today.