Work visas
H-1B, L-1, O-1, TN options and EB categories with PERM certification. We review whether your job and profile fit and what your employer can sponsor.
Learn moreNC · CA · AZ · TX — Spanish and English
We speak your language and fight for your family
We are an immigration law firm in North Carolina, California, Arizona, and Texas. We explain your options for visas, green cards, citizenship, and defense — with personal attention and clear steps.
Confidential consultation. We reply within 1 business day.
H-1B, L-1, O-1, TN options and EB categories with PERM certification. We review whether your job and profile fit and what your employer can sponsor.
Learn moreI-130 petitions for spouses, children, and parents. We explain adjustment of status and each step before USCIS.
Learn moreF-1, M-1, and J-1 visas, OPT/CPT, and extensions. We help you maintain your status while you study.
Learn moreN-400 naturalization, residency renewal, and removal of conditions. We prepare your interview so you arrive confident.
Learn moreCourt hearings, bonds, and relief such as cancellation or asylum. We act fast because every deadline counts.
Learn moreWhy Diener Law
Approachable, clear, and on your side
We explain every form and every deadline in plain language, in Spanish or English. We prepare your case with clear checklists and stand with you at every appointment and interview.

Founder · Attorney
More than 20 years guiding families through family petitions, naturalization, and defense.
Senior associate · Attorney
Specialist in immigration law, bonds, and court litigation.
Senior associate · Attorney
Specialist in immigration law, bonds, and court litigation, also licensed in California, Arizona, and Texas.
Senior associate · Attorney
Specialist in immigration law, bonds, and court litigation.
We hear your story and review your documents in your language.
We explain the possible paths and their requirements.
We build your file with clear checklists and full review.
We submit your case and track every notice.
We stand with you at interviews until the final decision.
They explained every step to us and accompanied us to every appointment. Thanks to them, we obtained our Green Card.
★★★★★
Thanks to your help, I obtained my work visa and can now work legally in the United States.
★★★★★
They prepared my citizenship interview with patience until I felt ready.
★★★★★
Testimonials shared with permission. Results vary by case.
+20
years of experience
Thousands
of families guided
4
states: NC, CA, AZ & TX
Situation: F-1 student with a job offer upon graduation. Strategy: We coordinated OPT, H-1B sponsorship, and a later EB petition. Outcome: Residency approved after a multi-stage process.
Situation: Resident with family outside the country. Strategy: Concurrent I-130 petitions and consular follow-up. Outcome: Immigrant visas issued and family reunited.
Situation: Long-term resident unsure about eligibility. Strategy: History review, N-400, and interview preparation. Outcome: Citizenship oath completed.
It depends on your situation: family, employment, asylum, or other categories. In a consultation we review your background and explain the possible paths and their requirements, without promising an outcome.
In many cases, yes: spouses, children, and parents of citizens or residents may qualify for family petitions. Each case has different timelines and forms (for example, I-130).
Defenses such as cancellation of removal, asylum, or adjustment of status exist depending on the case. Deadlines are strict, so it is best to seek legal guidance as soon as possible.
It varies by case type and USCIS fees. At the first consultation we give you a written estimate of fees and government costs before starting.
From months to several years depending on the category and the processing office. We share current estimated timelines and how to track your case.
Can’t find your answer? Talk to an attorney
Confidential consultation. We reply within 1 business day.
Confidential consultation. We reply within 1 business day.