Haven resources
The reference library for practical immigration questions.
This is where the detailed resource library lives: H-1B transfers and grace periods, visa basics, medical exam requirements, citizenship, inadmissibility, family immigration, employment green cards, humanitarian pathways, and tool reviews.
38 resources across 9 topics
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7 resources in Visa basics and temporary stays
Visa basics and temporary stays
Visa basics and temporary stays
Core visa concepts, temporary categories, and the rules people need before they file or travel.
7 resources
Humanitarian visas explained: S, T, U, and the limited V visa
If someone is in the United States because they are helping law enforcement, survived trafficking, or were harmed by qualifying criminal activity, the immigration system has specific humanitarian pathways. This guide explains the difference between S, T, U, and V visas.
Temporary work visas explained: H, L, O, P, Q, and R
If you want to work in the United States for a limited period, the right visa depends on the kind of job, who is sponsoring you, and whether the work is temporary, specialized, cultural, or religious. This guide explains the main temporary work visa paths.
Student visa guide: F-1 vs M-1 vs J-1 explained
If you want to come to the United States to study, the right visa depends on the kind of program you are entering. This guide explains the difference between F-1 academic student visas, M-1 vocational student visas, and J-1 exchange visitor visas.
Short-term visa guide: passport, visa, Visa Waiver Program, and Form I-539
If you want to come to the United States temporarily, the first question is not just which visa letter applies. It is whether you need a visa at all, what your passport does, and what happens if you later need to extend or change status.
Short-term U.S. visas explained: B-1, B-2, and K-1
If you want to come to the United States temporarily, the right path depends on why you are coming. This guide explains the difference between B-1 business visitor visas, B-2 tourism visas, and the K-1 fiance visa.
U.S. immigration legal framework: statutes, regulations, courts, and visa categories
If U.S. immigration law feels confusing, part of the reason is that it comes from more than one place. This guide explains how Congress, executive agencies, and the courts shape immigration rules, and how visa categories fit into that structure.
What is the difference between an immigrant visa and a nonimmigrant visa?
The short answer is that an immigrant visa is for living in the United States permanently, while a nonimmigrant visa is for a temporary purpose like visiting, studying, or working. The harder part is understanding intent, dual intent, and the exceptions.