Skip to main content

Oscar Castañeda

Immigration Attorney at Phoenix, AZ

3.0   2 reviews
  • Licensed for 16 years
    State AZ
    Acquired 2007
    Active No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Oscar

Learn Oscar’s areas of practice.

Practice areas

Prior to moving to the valley of the sun to complete his education, attorney Oscar Castañeda grew up in the border town of Nogales, Arizona.  While growing up, Oscar witnessed, first hand, people struggle with criminal and immigration issues.  In fact, it was his desire to provide quality service and guidance to those confronted such issues which drove his decision to devote his life’s work to the practice of law.

While attending law school at Arizona State University, Oscar served as a law clerk for a prominent Phoenix-area criminal defense attorney.  During that time, Oscar gained a tremendous amount of experience, learning the criminal court system and sharpening his legal skills.  Oscar also spent time working at an immigration law office, where, early on in his career, he had the unique ability to learn the dynamic between the two areas of law.   

Shortly after graduating law school in 2006, Oscar was hired by a large criminal defense firm where he was immediately given a high-level felony caseload.  This experience has given Oscar the ability to handle a wide range of cases, from DUI to homicide and everything in between. Oscar is uniquely skilled in both the areas of negotiation and litigation. His diverse background allows him to effectively communicate with his clients.  Oscar’s work ethic and devotion to his profession have allowed him to become a versatile and effective trial attorney.   In forming Castañeda Law, Oscar and his brother Jorge were guided by their life-long principles of putting forth the greatest possible effort to obtain the best possible result.  The team at Castañeda Law provides aggressive legal representation at the highest level while maintaining the utmost professionalism and integrity.  It is the quality of representation that sets Castañeda Law apart and makes it the premier law firm for your criminal or immigration needs.   


Castañeda Law
4001 N 3rd Street
Suite 405
Phoenix, AZ, 85012

Immigration lawyers nearby


3.0 / 5.0
  2 customer reviews
5 Star
4 Star
3 Star
2 Star
1 Star
Posted by Sherwin | July 3, 2014
Great communication and works above and beyond whats expected.
Oscar did a great job on my case. Communication he had with me during my case was amazing. Kept me updated on everything and explains everything in detail regarding case. I would highly recommend Oscar to my friends and family.
Posted by Vapsi | May 4, 2024
This review is from a person who hired this attorney.
| Hired Attorney
A TOTAL CROOK !!!! ¡¡¡¡¡ Abogado DESHONESTO !!!!!
Hired this thief in an emergency out of desperation. He took $2000 for visiting my friend in jail and disappeared. Didn’t show up for the court hearing or pull any paperwork on his client behalf. Only after telling him that I was going to take him to Small Claims he responded and gave a story about having problems with Zelle and his bank account only to disappear again. He takes money from hardworking people in a desperate situation and steals it so far getting away with it. May God Blessed You attorney catañeda. I also have proof available of the payment and communications.
Read less


  • Free Consultation 30 minutes
Payment methods
Cash, Credit Card


AVVO RATING 8.8 (Excellent)

Work Experience

  • Partner
  • Castañeda Immigration Law
  • 2013 - Present
  • Associate
  • Alcock & Associates, PC
  • 2008 - 2013
  • Law Clerk
  • The Law Office of Gabriel Valdez Jr.
  • 2004 - 2006


  • Arizona State College Of Law
  • JD - Juris Doctor
  • 2006
  • Arizona State University
  • Bachelor of Interdisciplinary Studies
  • 2003


  • United States District Court
  • 2015 - Present
  • American Bar Association
  • 2015 - Present

Languages Spoken

  • English
  • Spanish

Speaking Engagements

  • ASU Speed DUI
  • Basic Immigration Consequences of DUI Convictions
  • 2014

Attorney endorsements

Received (13)
Given (2)
Endorse Oscar
Criminal defense Attorney | Aug 31
Relationship: Fellow lawyer in community
"I have sent many clients to Oscar and they have nothing but good things to say about him. He is a very experienced attorney and has a high success rate. I highly recommend him."
Criminal defense Attorney | Jan 07
Relationship: Worked together on matter
"I endorse this lawyer. Oscar and I spent over three months together on a trial two years ago. I saw him in action every day. He tirelessly fought for his client. He is fierce on cross examination, charismatic in court, and has the innate ability to connect with jurors in closing arguments. He knows what he is doing - he's an awesome lawyer and you'd never regret hiring him!"
Criminal defense Attorney | Jan 27
Relationship: Fellow lawyer in community
"Mr. Castaneda is an experienced attorney who gets results for his clients."
Criminal defense Attorney | Dec 05
Relationship: Worked together on matter
"I endorse this lawyer. I have known Oscar since law school. He is diligent and takes care of his clients."
Criminal defense Attorney | Oct 29
Relationship: Fellow lawyer in community
"I have known Mr. Castaneda since law school where I witnessed his intelligence, strong work ethic, and great interpersonal skills. I have referred him many clients that have indicated he has carried these skills into his practice. I highly recommend him!"
Criminal defense Attorney | Mar 27
Relationship: Opposing Counsel on matter
"I worked against Oscar during my time as a prosecutor. Oscar is a tough and knowledgeable attorney with significant connections to the Phoenix area legal community. I strongly recommend him to anyone facing criminal charges in Arizona."
Unknown Attorney | Jan 29
Relationship: Worked together on matter
"Mr. Castaneda is knowledgeable and hard working. I have worked with him on several matters and his expertise has always proved invaluable."
Criminal defense Attorney | Jan 22
Relationship: Fellow lawyer in community
"Oscar is an outstanding attorney. I have worked with him on numerous cases and I would highly recommend him. His work ethic, knowledge and experience make him a great attorney."
Criminal defense Attorney | Apr 05
Relationship: Worked together on matter
"I endorse this lawyer."
Criminal defense Attorney | Nov 09
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Criminal defense Attorney | Nov 08
Relationship: Fellow lawyer in community
"I endorse attorney Oscar Castaneda, Esq. I have crossed paths with him frequently in the Maricopa County Superior Courts over the last several years. I can truly say that Mr. Castaneda is an excellent lawyer. He is extremely well-versed in the law and procedures of the courts and he is approachable and friendly. He provides excellent service to his clients and their families. I endorse him whole-heartedly."
Criminal defense Attorney | May 30
Relationship: Fellow lawyer in community
"Mr. Castaneda is an exceptional criminal defense attorney who advocates for his clients' best interest."
Criminal defense Attorney | Dec 03
Relationship: Worked together on matter
"I endorse this lawyer."
View more endorsements

Avvo Contributions

This attorney hasn't created any legal answers in Q&A or legal guides recently on Avvo.

Phoenix Immigration Lawyer Oscar Castañeda
Oscar Castañeda
Immigration Attorney
Phoenix, AZ
Licensed for 16 years
Free Consultation