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Nicole Dawn Marie Siqueiros

Family Attorney at Scottsdale, AZ

4.5   17 reviews

also known as Nicole Siqueiros-Stoutner

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About Nicole

Learn Nicole’s areas of practice.

Practice areas
  1. Family
    Family law includes divorce, custody, child support, post-decree modifications, spousal maintenance, default divorce, legal separation, grandparents' rights, and more.

    18 years

  2. Child custody
    Includes pre- and post- decree child custody and paternity issues.

    18 years

  3. Child support
    Includes pre- and post-decree child support establishment and modification.

    18 years

  4. Divorce and separation
    Includes divorce (dissolution) with or without children, legal separation, spousal maintenance (alimony), custody, child support, division of assets/debts, and enforcement of decrees.

    18 years

  5. Domestic violence
    Domestic violence includes Orders of Protection, Injunctions Againist Harassment, and other legal matters.

Every divorce, custody, or family dispute is challenging and emotional for the individuals involved. Through compassion and communication, Nicole’s personalized approach seeks to reduce her clients’ stress, while assisting in formulating her clients’ priorities and achieving her clients’ goals through settlement or litigation.

Nicole’s extensive experience as a family law gives her a unique and significant perspective that she applies to her practice, and to her work as a mediator and court-appointed parenting coordinator. Nicole believes in settlement as a potential vehicle to accomplish her clients’ goals. However, when negotiation and compromise are not viable, Nicole zealously protects and advocates for her clients in Court.

Even before becoming an attorney, Nicole’s strong desire to serve families and protect children was evident. Nicole worked as a case specialist for Child Protective Services (CPS) which is now the Department of Children’s Services (DCS) and for Sojourner Center (a domestic violence shelter) as an advocate.

Following a position managing the legal department of a local non-profit organization, Nicole practiced family law as an associate attorney and later a partner at three boutique family law firms in Phoenix  which handled complex divorce and custody cases. After working with Launi Jones-Sheldon for six years, Nicole and Launi continued their partnership and opened the law firm of Sheldon & Stoutner.

Nicole was honored to be appointed as a full-time judicial officer in the Maricopa County Superior Court in August of 2020 and served on the bench for a year before deciding to resume private practice. This experience, along with Nicole’s position as a divorce and paternity mediator for the Maricopa County Superior Court, provide her with valuable experience and insight about the workings of the court and judges’ decision-making processes.

Over the years, Nicole has received numerous awards and recognition related to her work as a family law attorney. She was invited to teach a course on family law as a an adjunct law professor at a local law school. On a regular basis, Nicole authors articles and presents Continuing Legal Education seminars through and for the Arizona State Bar, the Maricopa County Bar, the Arizona Chapter of the Association of Family and Conciliation Courts and the Arizona Supreme Court Committee on the Impact of Domestic Violence. Topics include family law trial techniques and advocacy, current case law, mental health issues in the family court, autism and the family court, serving minority clients, orders of protection, multi-jurisdictional custody and support issues, and cultural competency.

Nicole is appointed to serve as a judge pro tem for the Maricopa County Superior Court and conducts Alternative Dispute Resolution Conferences, as well as private mediations. She is a trained Parenting Coordinator and appears on the Maricopa County Superior Court Mental Health Roster.

In her spare time, Nicole enjoys reading, skiing, travel, sporting events, and most importantly spending time with her family.

Nicole speaks both Spanish and Italian.

Photos and videos

Licensed for 15 years
State AZ
Status Active
Acquired 2007
Updated 03/17/2023

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

Contact Nicole

Similar lawyers nearby

Sheldon & Stoutner
11111 N. Scottsdale Rd. Suite 245
Suite 245
Scottsdale, AZ, 85254


4.5 / 5.0
  17 customer reviews
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1 Star
Posted by Keddi | September 23, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Compassionate and Competent Representation
Nicole provided me with both sound advice as well as emotional support during the most stressful time of my life. She did a great job of explaining the divorce process and what my options were. Because of her vast experience she was able to help me set realistic expectations, but made sure my ex couldn't take advantage of me in ways that had never occurred to me. She and her staff were quick to respond to my many questions, always professional, and made the process as smooth as it could have been. I would recommend Nicole to my closest family and friends in a heartbeat. She is wonderful.
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Posted by Alexander | November 11, 2012
Surprised by Prior Negative Reviews - Had a Wonderful Experience as a Father who Needed Custody Assistance
I'm only writing this so that people who read the site know that the prior review is not what I experienced. In fact, I have a great relationship with Nicole and think the world of her as an attorney. She had always been very thorough, and I appreciated her responsiveness (less than 24 hours usually to all e-mails). She's one that will tell you it like it is, and is DEFINITELY not in it for the money. As a father in a custody dispute, I do not think it's fair to say that Court's give more time and belief to moms. That was not my experience, and I know that is not what the rules of law say. In fact, I am the parent who has more time now, so I'm living proof. I really think the site should be more careful about letting anyone say stuff that I doubt to be true.
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Posted by anonymous | October 12, 2012
Excellent lawyer!
Nicole did an excellent job with my custody case. She paid close attention to the details of the case and kept me well informed with everything that was happening. You could tell that she cared deeply about the outcome of my case.
Posted by Gerry | February 19, 2012
Excellent communicator and listener
As anyone that has been through a divorce will tell you, enlisting the help of a competent family law attorney will reduce the amount of stress that you experience during the process, and the amount of money that you have to pay: Nicole did both of those things for me. I frequently require the help of other professionals. There are two things that are very important to me when choosing a professional: someone that communicates well, and someone that listens to my goals and seeks to achieve them. Nicole is a did both of those things exceptionally well, and it led to the best possible result in the worst possible situation. Nicole is an excellent attorney. I recommend Nicole to everyone I know that has a family law matter.
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Posted by anonymous | December 27, 2011
Nicole was amazing. She made things so easy for me, and my kids. She is the smartest and most sincere attorney I've ever met.
I don’t really know how to describe how great of a job Nicole did for me during my divorce. I had a really complicated marriage and when I decided to leave my husband I knew I was going to need a lawyer that I could afford and who could also deal with the financial mess my now ex-husband had gotten us into. There were so many technicalities coming out of every corner of my prenup and fighting over my kids visitation/support issues was keeping me up almost every night. I met Nicole, explained everything that I could articulate and then gave her all the paperwork I'd collected over the past three years. Once she had the information all the chaos just stopped. Very complex issues (that I had never considered being an issue when I first got married!) were simplified by Nicole to a point where I just needed to tell her what I wanted her to do and then she would explain to me (in normal person speak) exactly what my decisions would entail, the benefits and the consequences of them. I had very bad experiences with lawyers before Nicole (namely my husbands attorney, who was a threatening bully). Nicole was very straightforward with me. She kept me up to date every step of the way and she let me know what to expect and when to expect it. Nicole had a temporary custody/visitation schedule worked out with my ex during the divorce so I wasn't a complete mess, scrambling to work out an agreement with my impossible husband and his attorney. Going through a divorce is the most horrible thing you can imagine and I was a mess. I needed a lawyer who was going to actually care about me as a person and not just a client. Nicole did that. She got to know me, she knew every aspect of my financial situation and she grew to know my ex-husband and his family, who all truly assumed I would see their big expensive lawyer and walk away with my tail between my legs. Nicole fought for me and everything worked out the way she said it would. I didn't get everything I felt I deserved, but those issues stemmed from the prenup I signed so long ago - if only I'd had Nicole when I signed that stupid thing. I came out of the divorce with so much more than I expected and certainly more than my ex and his family threatened me with. Anyway, for someone who never writes reviews this is certainly long winded. I just can't say enough good things about Nicole. It all ended just recently and I'm just so pleased with the outcome. Talk to her before you talk to anyone else. I plan on going to Nicole with any issues that every come up for me in the future.
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Posted by Joshua | February 9, 2011
Strong, Competent Lawyer - Highly Recommended
Nicole is a very talented, caring, and competent lawyer. I enlisted Nicole to help me with my child support case and I was extremely satisfied with her work and the outcome of my case. She was able to reduce my child support to a more reasonable sum and did so with great professionalism and skill. Nicole was very knowledgeable about family law and Arizona Child Support Guidelines. I am very grateful for her hard work on my case and the individual treatment she gave me. I would HIGHLY recommend Nicole Siqueiros for any family law matter you might have.
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Posted by Claire | November 18, 2010
Great Referral
As a licensed psychologist, I sometimes have clients that have decided that divorce is the best decision for them. I have referred a few to Nicole Siqueiros and she was just fantastic! My clients were so pleased with her caring and professional manner. The cases worked out in the best way possible with both partners satisfied with the results. I was especially pleased at the way she made the children's needs paramount. I would recommend her to any future clients in need of her services.
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Posted by Margaret | October 6, 2010
Good attorney - smart, aggressive and caring...
I came to Nicole at the Hallier Law Firm for a divorce. My ex is very difficult to deal with, he's on drugs, there was some violence and he's just a horrible guy. Nicole dealt with him like you wouldn't believe. When we couldn't settle we had to go to Court and she was really prepared. I loved when she got him on the stand and taught him a lesson!! She's a super lawyer!
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Posted by Jeff | June 22, 2010
Smart, Caring, Helpful, Passionate! Great Family Lawyer
Not only is Nicole sweet and caring, but she seemed to know everything that was needed for my case. It was a very ugly situation, and while frustration was a weekly even due to the ex. Nicole was very empathetic to my situation, and always on top of the case and kept everything moving in a positive direction. I know she had other clients while working with me, but she always knew details and made me feel like her only client. While Nicole was sweet and caring, she was also very professional and knew how to get down to business. She was able to handle every curve ball my ex and her lawyer could throw at us. Not once did I ever feel Nicole wasn't in complete control of the situation. I would recommend her to anyone with a family law problem. I'm sure I'll need her again down the road and I won't hesitate to call her first.
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Posted by anonymous | June 18, 2010
Fresh Start Assistance
I was in need of assistance at a very difficult time. I met Nicole at Fresh Start WC. She provided me with a lot of material needed for my case and support. I would recommend Nicole for anyone struggling with very difficult situations.
Posted by Mark C. | June 3, 2010
Looks like some other people beat me to it, but I want to express my thanks to Nicole. I was very happy with Nicole's representation. She kept me informed and responded to me in a timely manner. Nicole was professional and respectful. She is very good and I give her my highest recommendation.
Posted by Angelica R. A. | March 31, 2010
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Posted by Sarah | January 12, 2010
Helpful, caring and smart attorney!
Nicole was my attorney during my paternity and custody modification. My ex was making completely ridiculous demands including wanting to move my children across the country! He is very unreasonable, demanding and aggressive. Nicole did a great job dealing with him, especially during our mediation. In the end we had to take part of the case to a trial and we won! I was awarded attorney's fees along with getting what I was asking for with regard to custody and parenting time. She did a great job and I will use her again, if I need her.
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Posted by Sandra F. | February 21, 2009
Great and Helpful Lawyer!
Nicole is the managing attorney at Fresh Start, and she has been wonderful to me! I have been working with her for the last couple of months, and she's a life saver. She's so caring, smart and a wonderful lawyer! I can't say enough good things about her. Fresh Start is so lucky to have her, and I'm thankful for all she has done for me.
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Posted by anonymous | November 9, 2008
Wonderful lawyer
I will remain anonymous, but I am so thankful to have worked with Nicole. Nicole represented me during my divorce in late 2007. She is very caring and it feels like she is not only my lawyer but an empathetic friend. When I called she listened, and always took the time to tell me what was going on and explain the process. She really knew her stuff! But she is also agressive, hard-working and a great trial lawyer. I felt she got a good result for me and my family, and her prices were pretty reasonable (for a lawyer). I am thankful that she represented me and I hope other people hire her as well.
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Posted by Rhett | November 9, 2012
Barely Competent
NOT RECCOMMENDED! POOR ADVICE: Nicole represented me for a divorce and custody case. She did a poor job of explaining the court process. She did not do a good job of presenting me with my legal options. I wanted a 50/50 joint custody agreement while my ex wife wanted the majority of our child's custody. Nicole did a poor job off advising me of the court's attitude towards fathers when the child is small. Because she couldn't give me sound advice, I setteled for a lot less time with my child. UNRELIABLE: Also on several occasions she completly missed my stated intentions. For example, I wanted to be the respondent in my court case for personal reasons. I made this clear to her. The paperwork she prepared for me showed I was not the respondent, but the the petitioner. LATE: She failed to show up on time for a meeting just before court. She made arrangements to meet me fifteen minutes prior to a court hearing. She didn't show. She was even a few minutes late to the hearing. Finally I felt like I was being billed for time she did not work on my case. On several occasions I was billed for a half hour of work, when any reasonably competent person could have opened a from letter, edited one name, printed and signed it in six minutes. Stay away from Nicole Siqueiros and Hallier Law.
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Posted by Tim | February 9, 2012
Buyer beware
I used Nicole in November of 2011. I needed a simple adjustment to my child support payments due to one of my children turning 18. In the course of the negotiation, my ex made a number of new demands. I responded to Nicole by email that I would agree to them only if additional conditions of my own were also accepted, and I also requested she discuss this with me before responding to my ex. Unfortunately, Nicole did not call me and instead agreed to all of my ex's demands without countering with any of my offsetting requirements. This cost me a great amount of extra money. What bothered me most, however was Nicole's refusal to admit she blew the deal, and that she made no attempt to remedy the situation. I believe mistakes can be worked out, but when there's a lack of integrity, you are screwed.
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Contact for Details


AVVO RATING 10.0 (Superb)

Work Experience

  • Managing Attorney of the Legal Department
  • Fresh Start Women's Foundation
  • 2008 - 2009
  • Case Specialist
  • Department of Economic Security - Child Protective Services
  • 2007 - 2007
  • Associate Attorney
  • A Small Phoenix Family Law Firm
  • 2007 - 2009
  • Attorney Case Manager and Mediator
  • Maricopa Superior Court
  • 2006 - 2007
  • Judicial Law Clerk
  • Maricopa Superior Court
  • 2005 - 2006
  • Legal Advocate
  • Sojourner Center
  • 2005 - 2005
View all work experience


  • Arizona State University - College of Law
  • JD - Juris Doctor
  • 2005
  • University of Arizona
  • BA - Bachelor of Arts
  • 2001

Legal Cases

  • Post-Decree Modification of Custody and Parenting Time
  • Father did not relocate with the children
  • Divorce Case in which Wife was awarded Spousal Maintenance and Full Custody
  • Wife was awarded alimony & full custody
  • Child Support Establishment
  • Father not ordered to pay child support arrears
View all legal cases


  • Maricopa County Bar Association, Family Law (Including Juvenile Law) Section
  • Board of Directors
  • 2009 - Present
  • State Bar of Arizona's Committee on Minorities and Women in the Law
  • Committee Appointed Member
  • 2009 - Present
  • Arizona Women Lawyers Association
  • Member
  • 2007 - Present
  • Maricopa County Bar Association, Family Law (Including Juvenile Law) Section
  • President/Chair
  • 2012 - 2012
  • Los Abogados Hispanic Bar Association
  • Board of Directors
  • 2010 - 2011
  • Tumbleweed Center for Youth
  • Board of Directors
  • 2009 - 2010
  • State Bar of Arizona - Bar Leadership Institute
  • Selected Participant
  • 2009 - 2010
  • American Bar Association Young Lawyer's Division Family Law Section
  • Vice-Chair
  • 2008 - 2008
View all associations

Languages Spoken

  • Spanish
  • Italian

Honors and Awards

  • Top 40 under 40 Honoree
  • Phoenix Business Journal
  • 2011


  • Maricopa County Bar Newsletter
  • Ask An Associate...(Monthly Reoccuring Column)
  • 2011
  • The School Psychologist
  • Schaeffer v. Weast, New Supreme Court Ruling
  • 2006

Speaking Engagements

  • Arizona Supreme Court
  • Domestic Violence and Immigrants
  • 2011
  • Arizona Paralegal Conference 2011
  • Use of Paralegals in Family Law
  • 2011
  • Arizona Paralegal Conference 2011
  • The Use of Paralegals in Family Law
  • 2011
  • Continuing Legal Education Speaking Engagement
  • Spousal Maintenance 101
  • 2010
  • Continuing Legal Education Speaking Engagement
  • Representing Domestic Violence Victims
  • 2009
View all speaking engagements

Attorney endorsements

Received (16)
Given (13)
Endorse Nicole
Domestic violence Attorney | Apr 24
Relationship: Fellow lawyer in community
"I respect Nicole as an attorney and also her commitment to the community."
Family Attorney | Mar 09
Relationship: Worked for lawyer
"Although the contact/firm information on AVVO is not correct (you can find Nicole at Rader, Sheldon & Stoutner), I know Nicole personally and would highly recommend her for family law matters. Nicole is responsive, never waits until the last minute to get things done, is very organized, and gets good results. But I think what I most appreciate about Nicole is that she has a heart."
Divorce and separation Attorney | Apr 13
Relationship: Opposing Counsel on matter
"I endorse this lawyer. Nicole is an excellent attorney and knows how to represent her client's best interest. I have personally witnessed "the other side" (not me) leaving court after going up against her and they were not very happy!"
Divorce and separation Attorney | Dec 30
Relationship: Opposing Counsel on matter
"Nicole is a very talented attorney. In a recent case where she represented the Wife and I the Husband, Nicole was reasonable and a very effective advocate for her client. I strongly endorse her."
Unknown Attorney | Dec 11
Relationship: Other
"This lawyer is a very smart, assertive and multi-talented lawyer. I endorse this lawyer."
Family Attorney | Dec 20
Relationship: Fellow lawyer in community
"I endorse Nicole. She is well respected in the community for her knowledge, experience and integrity."
Family Attorney | Dec 16
Relationship: Fellow lawyer in community
"I have consulted with Nicole on a few matters. She's sharp, compassionate and an energetic advocate for her clients. I'd recommend her to anyone."
Family Attorney | Aug 29
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Family Attorney | Mar 11
Relationship: Fellow lawyer in community
"Nicole is an outstanding attorney who zealously advocates for her clients and is committed to excellence in her craft."
Divorce and separation Attorney | Feb 13
Relationship: Fellow lawyer in community
"Nicole is extremely competent, responsive and aggressive. I always receive great feedback from referrals to Nicoole."
Family Attorney | Jan 26
Relationship: Fellow lawyer in community
"I endorse this lawyer. I know her very well and she is a great lawyer. I refer all my clients to her who need a family law attorney. If I ever needed a lawyer I would without question call her first."
Family Attorney | Jan 01
Relationship: Fellow lawyer in community
"Excellent lawyer."
Family Attorney | Jun 28
Relationship: Fellow lawyer in community
"I've recently had the pleasure of working on a matter with Nicole. Nicole was extremely professional during the matter and handled herself with the utmost passion and intelligence clearly understanding the issues involved. I look forward to the opportunity of her involvement on future matters."
Family Attorney | May 05
Relationship: Supervised lawyer
"Nicole is a conscientious, thorough attorney. She is very compassionate and fair minded. Persons with family law issues are well served by hiring her."
Family Attorney | Apr 28
Relationship: Fellow lawyer in community
"Whenever I have a referral for a family law attorney, the first person that comes to mind is Nicole. She is an upper-tier attorney in her area of practice, and never hesitate to refer her cases. I also like that fact that she is a great communicator and lets me know when she has consulted with one of my referrals. I strongly endorse Nicole Siqueiros!!"
Family Attorney | Apr 14
Relationship: Fellow lawyer in community
"I have been in practice for over nine years. I can tell you without reservation that Nicole is one of the most talented family law lawyers I know. I highly recommend her."
View more endorsements
Divorce and separation
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