Your Partner in Overcoming Immigration Challenges

Helping Individuals, Businesses and Organizations Nationwide to obtain their Visas, Green Cards and Citizenship.

N400 Harbor Immigration Law

N400 Harbor Immigration Law, P.L.L.C. is a full-service immigration law firm located in Pompano Beach, Florida. In addition to serving clients in Florida, we help individuals, businesses, and organizations nationwide to obtain visas, Green Cards, and citizenship.

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Comprehensive Immigration Services You Can Trust

At N400 Harbor Immigration Law we understand that the United States of America is a melting pot of immigrants from all over the world. We also are aware of the legal challenges that many immigrants who are coming and seeking to stay in the U.S. face every day. Here at N400 Harbor Immigration Law we work tirelessly and compassionately to help our clients navigate the complexities of the U.S. immigration legal system.

We are invested in your story and provide legal services with a high level of expertise and care. We would be honored to represent you, so you can plan and build your future in the United States of America.

Our Services

Legal Associations

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Dario Castañeda, ESQ

Founder & Managing Attorney

Mr. Castañeda concentrates his practice in both family-based and employment immigration law and has extensive experience in removal proceedings.

Immigration News

What Documents Are Required to Renew a Green Card?

That small plastic card in your wallet does more than prove your identity. It confirms your right to live and work permanently in the United States.…

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Is an Immigration Lawyer Necessary to Get a Green Card?

Applying for U.S. permanent residence might seem simple at first glance, but one missed signature or incorrect date can set your case back by months. Friends…

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I-140 Denied? Here’s What Might Have Gone Wrong

Waiting on an I-140 decision often feels like watching a pot that refuses to boil. When a denial notice finally arrives, the disappointment can hit hard.…

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What Happens If You Divorce Before Your Green Card Interview?

Divorce is hard enough on its own, but it becomes even more complicated when immigration paperwork is still in progress. If you are waiting for a…

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USCIS Freezes Humanitarian Parole: Is Your Case on Hold?

If you came to the U.S. under a humanitarian parole program, you may be wondering what’s happening with your case. Earlier this year, USCIS froze applications…

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¿Puede una Persona Deportada Regresar Legalmente?

¿Alguna vez te has preguntado si la deportación significa realmente que no puedes regresar jamás? Muchas personas asumen que, una vez que han sido expulsadas del…

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O-1 vs. H-1B: Choosing the Right Visa for Skilled Workers

Balancing two promising U.S. job offers can quickly reveal that the real hurdle is choosing the right visa. Every spring, countless talented professionals face this crossroads.…

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Common Pitfalls When Selecting an Immigration Lawyer

Choosing the right immigration lawyer can feel like walking a tightrope. One small slip and your visa, green card, or citizenship plans may wobble. At N400…

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How to Go From an E2 Visa to a U.S. Green Card

Running a business in the United States on an E2 visa feels exciting, yet the temporary label on that visa can weigh on your mind. You…

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Southern Border Entry Suspended Under New Executive Order

On January 20, 2025, President Trump signed an executive order that stops most migrants—including asylum seekers—from entering through the southern border. The order calls the current…

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