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As a former Los Angeles County District Attorney and Maricopa County Attorney in Sex Crimes, I've heard and seen it all. I've been helping families in crisis since 2006. I've spent my entire career in the courtroom and I know how to separate the truth from lies, and true controversies from insignificant drama. I know how to effectively present your side to a superior court judge. I'm in your corner and I will fight for you.
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Chat withState: Arizona
Acquired: 2012
No misconduct found
State: California
Acquired: 2004
No misconduct found
17470 N Pacesetter Way, Scottsdale, AZ, 85255
20325 N 51st Ave. Suite 134, Glendale, AZ, 85308
14050 N 83rd Ave Ste 290, Peoria, AZ, 85381
777 E Thomas Rd Ste 210, Phoenix, AZ, 85014
3115 S. Price Rd. Suite 111, Chandler, AZ, 85248
2929 N Power Rd Ste 101, Mesa, AZ, 85215
4700 South Mill Avenue, Suite 5, Tempe, AZ, 85282
1166 East Warner Road, Suite 101, Gilbert, AZ, 85296
Showing 1 - 5 of 10 client reviews from Avvo
Posted by anonymous | January 24, 2017 | Hired Attorney
We hired Kareen to help with a very nasty Custody battle one where the other side was trying to win at no cost and doing it dirty. Kareen stepped in and saved the day. She help get equal custody and help stop a very unethical lawyer from writing and sending lie filled emails that were merely the othe...
Posted by anonymous | December 28, 2015 | Hired Attorney
I am absolutely happy with Kareen O'Brien. She was passionate about my case and she was completely confident in the courtroom. Even though I had quite a tricky case, she was able to help me figure out my best options.
Posted by anonymous | December 17, 2015 | Hired Attorney
I was engaged in a highly contested and volatile custody battle. I was not represented by an attorney at first and I was so scared. When your child and their well being are at stake you don't want to take chances...so I sought out the representation of an attorney. I was referred to Kareen through a ...
Posted by Steve | August 28, 2015 | Hired Attorney
After firing a non-ambitious attorney. My wife and I found Kareen on the AVVO site. From our first consultation to the final not guilty verdict, we have been nothing but impressed with her professional conduct and aggressive style. I would recommend Kareen to anyone needing a criminal defense atto...
Posted by Matt | August 27, 2015 | Hired Attorney
I was a client of Mrs. O'Brien and was incarerated for an alleged crime that I never did. I was facing 35-99 years. She stepped in and took over my case. We went to trial and won our verdict of Not Guilty. Thank You Kareen.
"Kareen is an outstanding lawyer and tenacious trial attorney. Her preparation and skill is truly amazing and I highly recommend her for any divorce or child custody matter."
"Kareen was opposing counsel on a divorce case. It was a true pleasure to work with her as she was knowledgeable about the law and the facts of the case. She advocated strongly for her client while always being professional and respectful of all persons involved. I endorse Kareen."
"Kareen and I met when she was working in the Prosecutors office and we had a trial as opposing counsel. She was thorough, proficient and professional in her handling of the case. She was extremely knowledgeable on the law and presented a compelling case to the jury. I hold her in high regard."
Criminal defense lawyer
Criminal defense lawyer
2021
10 Best Family Law Attorney, American Institute of Family Law Attorneys
2020
10 Best Attorney, American Institute of Family Law Attorneys
2019
10 Best Attorney, American Institute of Family Law Attorneys
2019
Top 10 Attorneys, National Academy Of Family Law Attorneys
2019
10 Best Female Family Law Attorney, American Institute of Family Law Attorneys
2019
Top 10 Attorney, Attorney and Practice Magazine
2016
Excel 2016 Introduction, ONLC Training Centers
2016
Microsoft Office OneNote 2013, ONLC Training Centers
2002
2nd Place Brief and Semi-Finalist Team, Cardozo Moot Court Competition
2016 - Present
Associate Attorney, Stewart Law Group
2013 - 2016
Attorney, Law Offices of Kareen O'Brien, PLLC
2012 - 2013
Deputy County Attorney, Maricopa County Attorney's Ofc
2006 - 2012
Deputy District Attorney, Los Angeles District Attorney's Office
2016 - Present
State Bar Military Legal Assistance CommitteeMember
2016 - Present
Mountain Ridge High School Mock Trial TeamTeam Advisor
2014 - Present
State Bar of Arizona, Family Law SectionMember
2014 - Present
State Bar of Arizona, Criminal Justice SectionMember
Father prevailed
Not Guilty
2004
JD - Juris Doctor
1991
BA - Bachelor of Arts
2010
Helping Your Witness Experience "Total Recall" On the Stand (Hearsay Exceptions)
2010
The Uniform Act To Secure Witnesses, Business Records, Hearsay, and the Constitution
2003
English
Legal Answers
How much information can be redacted from a court order when providing the document to the children's school?
14 Dec 2015
Is it illegal for a grandmother to spank her grandchildren with a belt? She currently has power of attorney over them.
09 Aug 2014
How can I file a formal complaint on a Court Appointed Advisor in Arizona
06 Aug 2014