Work & Corporate Immigration
Employers that hire or transfer foreign professionals work within a set of visa and green card categories, each with its own eligibility rules, filing windows and compliance duties. This section covers the H-1B specialty occupation visa and its annual registration lottery, L-1 intracompany transfers, the O-1 and B-1 visas, F-1 students moving to work status through OPT, and employment-based green cards through PERM labor certification in the EB-2 and EB-3 categories.
The guides are written for employers and employees alike and explain processes, typical timelines and common Request for Evidence issues in general terms. Rules and fees change, and the right strategy depends on the role, the company and the individual. Please consult an attorney before acting on a specific case.
Cap-gap keeps F-1 status and OPT work authorization alive until April 1 while an H-1B change of status is pending. Who qualifies, the mistakes that break it, and the 2026 changes every 2027 graduate should know.
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The $100,000 H-1B proclamation fee is extended but blocked by court; DHS now proposes $103,265 for cap-subject petitions. Who would pay, exemptions and what to do now.
What to do if your H-1B was not selected or was denied: cap-gap and STEM OPT, motions and refiling, and alternatives including O-1, L-1, E-2 for Turkish nationals, cap-exempt employers and EB-2 NIW.
Losing an H-1B job starts a 60-day clock. How the grace period works, the eight options you have, what your employer still owes you, and DHS's September 2026 proposal to eliminate the grace period.
The step-by-step B-1 business visa guide: what the B-1 allows and forbids, the 214(b) immigrant-intent hurdle, the DS-160 and consular interview, 2026 fees, and the period of stay for Turkish applicants.
The arts-deep O-1B guide: the distinction standard (lower than O-1A), the six arts criteria and the evidence that proves them, which union gives the consultation, the higher MPTV bar, and the agent/itinerary for freelance artists.
The execution-level H-1B guide: the step-by-step process (LCA, registration, I-129), the $215 fee and the 2026 wage-weighted selection, cap-exempt employers, the six-year rule and AC21, dual intent, and the H-4 family.
The execution-level O-1 guide: the filing-to-approval process, building the evidence file (why three criteria are not enough), the agent model for talent without an employer, the advisory opinion, premium processing, and the most common denial reasons.
An L-1 transfer rests on three eligibility tests: the company relationship, one year of foreign employment, and qualifying capacity. This guide walks the decision stage, L-1A vs L-1B, and new office requirements.
The full roadmap of the F-1 student visa: application steps, visa refusal (214(b)), CPT and OPT/STEM OPT work authorization, the cap-gap when OPT ends, and the real question, the transition from F-1 to H-1B and a green card (O-1, EB-2 NIW).
H-1B denials trace to the specialty occupation requirement in 60% of RFEs.
Five federal visa routes facilitate employer-sponsored U.S. immigration: H-1B specialty work, L-1 intracompany transfer, EB-2/EB-3 PERM Green Cards, and EB-1C multinational executive.
Learn the 2026 PERM recruitment requirements and Visa Bulletin strategies.
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