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.
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
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
The Migrant Protection Protocols Are Back: What You Should Know
On January 21, 2025, the Migrant Protection Protocols (MPP) were reinstated under the Trump administration. If you’re seeking asylum or know someone who is, this change…
Read MoreImmigrant vs. Nonimmigrant Visas: What’s the Difference?
Have you wondered why some visas allow you to live in the United States for years while others grant only a temporary visit? We know that…
Read MoreCan an Immigration Lawyer Help Speed Up Your Case?
Waiting on an immigration case can feel endless—months go by, and you’re still checking for updates with no clear answers. Whether you’re applying for a visa,…
Read MoreSeven Reasons You May Be Denied U.S. Citizenship
Do you dream of completing the naturalization process and gaining your place as a U.S. citizen? We understand how achieving that status can make a positive…
Read MoreTypes of Questions Asked During a U.S. Asylum Interview
Applying for asylum can be stressful, especially the interview. You might be worried about the kinds of questions you will face and how to deliver clear,…
Read MoreCan You Reapply for Asylum After a Denial?
Have you run into a setback in your asylum process and wondered if there’s still a way forward? A denial can feel like a heavy burden,…
Read MoreDHS Expands Immigration Arrest Powers to DOJ Officials
At N400 Harbor Immigration Law, we are committed to keeping you informed about changes that could impact your immigration status. A recent shift in enforcement policy…
Read MoreAffirmative vs. Defensive Asylum: Key Differences Explained
Seeking asylum is a life-changing decision for individuals escaping persecution, violence, or threats to their safety. The United States offers asylum as a form of protection,…
Read MoreCan I Enter Canada as a Green Card Holder?
If you’re a U.S. green card holder, you might assume that traveling to Canada is as simple as flashing your card at the border. It’s not…
Read MoreWhat Do Immigration Lawyers Do? Roles & Benefits Explained
U.S. immigration law is a maze of changing rules, regulations, and policies. For individuals and families trying to secure visas, green cards, or citizenship, the process…
Read MoreStories from Our Satisfied Clients
"I had an exceptional experience with Dario Castaneda during a recent phone consultation. He was incredibly knowledgeable and took the time to thoroughly explain every detail of my case, ensuring I fully understood my options. His professionalism and patience were evident throughout the entire conversation, and I never felt rushed. Dario's expertise in immigration law is clear, and his ability to break down complex legal matters into easy-to-understand terms made me feel confident and well-informed. I highly recommend him for anyone in need of immigration legal assistance!"
"Amazing lawyer! Dario guided us through the entire process of requesting our E2 Visa. He was always available for my calls or texts, also his team was always on top of every single detail. He got us ready for our interview and presented a great case, we only got asked two questions during the interview because of this!"
"I recently attained U.S. citizenship, and I owe my gratitude to Dario Castenada and N400 Harbor Immigration Law for their invaluable assistance. Dario expertly guided me through every step of the process. He even took the time to call me the day before my interview, outlining what I should expect and the kinds of questions that would be asked. I'm extremely thankful for Dario's effort to alleviate my stress!"
"Do yourself a favor and hire Attorney Dario and his team. They are amazing, they made my immigration application process easy and so smooth. I was able to get everything I needed in exactly a year. I am now a green card holder and ready to travel the world. Thank you Dario for everything.”
"Dario and the N400 Harbor Immigration Law team are extremely knowledgeable, and they take the time to patiently explain the complexities of immigration law. He is a very empathetic person who goes above and beyond to ensure everything is done with a keen eye for detail and in a timely manner. Dario is quick to respond to any inquiries and ensures you feel listened to and understood"
"I just want to start off by saying how thankful and blessed I was for coming across Dario and his whole attorney team. Dario helped my husband with receiving his citizenship a few weeks back, it was stressful for us due to my husband having a background many years back but Dario fought for us and helped push everything thru and made it as stress free as possible. He was always so understanding and explained everything so thoroughly. I would highly recommend him!"
"Mr. Castaneda has shown a lot of attention to my citizenship process and is very attentive throughout each step. He is very knowledgeable in his field and I am very glad that I have him representing me. I am very confident in his skills and it's a great comfort knowing that I hired a top-tier professional like Dario, to guide me through this complicated process!"
"Dario and everyone at his firm did an incredible job with our case which had a positive outcome. He immediately put our mind at ease with excellent consultation. He filed the forms in an incredible timely and thorough manner. He followed up immediately when the government responded. And he coached us before our interview which made everything easier. I would recommend him to anyone who has an immigration issue."
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