Skip to main content

Diana Kaye Zilko

Divorce and separation Attorney at Brea, CA

5.0   15 reviews
  • Licensed for 27 years
    State CA
    Acquired 1996
    Active No misconduct found

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

About Diana

Learn Diana’s areas of practice.

Practice areas
  1. Divorce and separation
    Divorce, Mediation, Prenuptial Agreements, Child Custody and Visitation, and Child and Spousal Support.

    20 years

  2. Estate planning
    Wills, trusts, powers of attorney, and healthcare directives.

    21 years

The office of Diana K. Zilko, Attorney at Law is located in beautiful Downtown Brea, California.  For the last 25 years, I have represented individuals and families throughout Southern California with their important legal needs.

I represent clients in the areas of family law, including divorce, mediation, child custody / visitation, prenuptial agreements, and domestic partnerships.

For those who need estate planning, I prepare full plans, including wills, trusts, powers of attorney, and healthcare directives.


Diana K. Zilko, Attorney at Law
110 W. Fir Street
Brea, CA, 92821

Divorce lawyers nearby


5.0 / 5.0
  15 customer reviews
5 Star
4 Star
3 Star
2 Star
1 Star
Posted by Sheryl | August 2, 2018
This review is from a potential client who consulted with this attorney.
| Consulted Attorney
So thankful!
I am so thankful to Diana for her legal and personal advise when I consulted with her. I thought I had done the most I can to research and do everything on my own before I came to her. I was so glad that I went and met with her! Her advise help me tremendously! I have recommended her to my family and friends already!
Posted by Jonathan | July 18, 2018
This review is from a potential client who consulted with this attorney.
| Consulted Attorney
Excellent experience
I highly recommend Diana! She did a great job of answering our questions and guiding us through the whole legal process. I will definitely use her again for any future needs.
Posted by Victoria B | May 31, 2018
This review is from a person who hired this attorney.
| Hired Attorney
Explains your options
I consulted with Diana regarding a personal legal issue. She gave me sound legal advice, let me know my options available to resolve the issue. Unlike most attorneys she took the time to explain the options available to me. I highly recommend her for anyone needing a personable experienced attorney.
Posted by Priscilla | May 10, 2018
This review is from a person who hired this attorney.
| Hired Attorney
Knows Her Stuff
Diana has been a wonderful resource for me. I am so grateful for her assistance personally and professionally. She always responds in a timely manner to my calls and emails. She always keeps me updated and is proactive I never have to worry if things are being taken care of. I highly recommend Diana Zilko if you are looking for a great lawyer that knows her stuff.
Read less
Posted by Rick | February 14, 2018
This review is from a person who hired this attorney.
| Hired Attorney
Lawyer Extraordinaire !!
Diana is an amazing attorney, she handled some sensitive legal matters for me and I was thoroughly pleased with the services. Diana was very responsive and attentive to my needs along with being sensitive to what I was going through. I highly recommend Diana.
Posted by Tom | January 19, 2018
This review is from a person who hired this attorney.
| Hired Attorney
Definitly A Solid Estate Planning Attorney
I have had Diana help me out on multiple occasions and cannot say enough about how amazing she was in her delivery. I will definitely be working with her again in the future. I would highly recommend her for your estate planning needs.
Posted by Kelly | January 3, 2018
This review is from a person who hired this attorney.
| Hired Attorney
Terrific attorney
I am so grateful that Diana helped us with our estate planning and trust. We had so many questions and she took time to answer them, and made sure we were well educated on our decisions. She shared her knowledge and expertise with us and made the process painless. I highly recommend her for your estate planning needs. She is knowledgeable, reliable, helpful, and caring.
Read less
Posted by Chris | July 28, 2011
Knowledgeable and not rushed
I am so thankful for Diana for her help with a legal issue I was working through. She is so knowledgeable and gave me the time and attention I needed. I don't believe that just anyone would offer their time the way Diana did.
Posted by Michelle and Lee | September 6, 2010
Estate Plan
We had been putting off creating an estate plan for our family for too many years. Diana walked us through the process, gave us various options and examples to help us decide what we wanted, and was there to offer advice and answer our questions every step of the way. She was never judgmental and was always helpful. She made the entire process so painless, it made us wonder why we had put our estate planning off for so long. I would highly recommend Diana to anyone who is looking for help in developing a family estate plan.
Read less
Posted by Chris | September 2, 2010
Professional and personable
I used Diana to write up a prenup for me. She was EXTREMELY thorough. So thorough in fact that my fiance's attorney recommended she not sign it as it was completely airtight in protecting my assets and left no wiggle room to litigate any of my premarriage assets. I've dealt with other attorneys in the past who seemed aloof and that my case was just one of many that they were dealing with. That wasn't the case with Diana. Whenever we met she made me feel like my case was the most important thing at hand, and was totally focused on my legal needs. One of the biggest complaints about attorneys (as was mine with my previous two) is their lack of accessibility or lack of returning calls. That was never the case with Diana. She never seemed too busy to answer my questions, or return my calls in a timely manner. I would not only recommend her, but will use her for my future legal needs.
Read less
Posted by anonymous | August 20, 2010
Great Attorney
I saw Diana Zilko for my Divorce and child custody agreements. She was great! I had no clue what to expect from it all and I truly was so lost the first time I went to see her. I loved how she was so real with me, she told me all my options and truly wanted the best outcome for all involved. I worked with her for almost two years from deciding divorce vs separation to child custody and then she even held my divorce while we tried reconciliation and then finally the completion of my divorce. Diana worked hard for the best interest of me and my children. When it was very emotional times for me, she helped be calm and rational and make wise decisions for everyone involved and not be spiteful or vindictive in the divorce. Diana was always very easy to get in contact with and she always kept me informed of new developments when they came up. I would definitely recommend Diana Zilko to a friend.
Read less
Posted by Carol | August 20, 2010
Diana kept me informed with the progress of my divorce. Was straightforward when speaking to myself and my ex-husband. I felt that she represented me well and spoke up for me when I was not able. Thanks Diana!
Posted by Daniel | August 20, 2010
Need a excellent lawyer? Call Diana Zilko!
I was very impressed with the service I received from Diana Zilko. She is an excellent lawyer. I would not hesitate to recommend her to anyone in need of a excellent lawyer. If I ever need the services of a lawyer again Diana Zilko will be the first person I will call.
Posted by Lindy | August 19, 2010
Great estate planning attorney!
After Ms. Zilko did a presentation to members of our HOA, I referred a neighbor to her. She was very accessible and helpful, and created a custom plan tailored to my neighbor's needs. I would highly recommend her.
Posted by anonymous | December 5, 2008
Estate Planning
Diana Zilko was extremely thorough when preparing our family trust. She consulted with us on numerous occasions and was very knowledgeable about the entire process. She acted in a professional manner at all times and maintained the confidentiality of our personal information. I would highly recommend her.
View less reviews


  • Free Consultation 30 minutes
Payment methods
Cash, Check, Credit Card


AVVO RATING 8.3 (Excellent)

Work Experience

  • Owner
  • Diana K. Zilko, Attorney at Law
  • 1996 - Present
  • Sports Writer
  • Irvine World News
  • 1984 - 1991


  • Western State University--College of Law
  • Juris Doctor
  • 1996
  • California State University, Fullerton
  • Bachelor of Arts
  • 1991

Sample of Legal Cases

  • Carbajal v. Mireles
  • Plaintiff's verdict


  • Brea Chamber of Commerce
  • 2009 - Present
  • Prosperity BNI
  • Multiple Positions
  • 2009 - Present

Languages Spoken

  • English

Honors and Awards

  • Gold Club
  • So Cal BNI
  • 2016
  • Four-Star Training Ribbon
  • So Cal BNI
  • 2010

Speaking Engagements

  • Planning Seminar
  • Importance of Estate Planning
  • 2016

Attorney endorsements

Received (19)
Given (11)
Endorse Diana
Mediation Attorney | Mar 22
Relationship: Worked together on matter
"I have had the pleasure of a referral contacting me and thanking me for referring Diana to them. She was caring, efficient, and knowledgeable. I will not hesitate to refer anyone who needs a mediator for an amicable dissolution to Diana. I highly endorse this lawyer."
Estate planning Attorney | Feb 24
Relationship: Fellow lawyer in community
"I have communicated with Diana K. Zilko on multiple occasions regarding legal issues. She is extremely knowledgeable, easy to deal with and a fine attorney. Highly recommended."
Estate planning Attorney | Jun 13
Relationship: Worked together on matter
"Diana has been a great referral source for me when my clients need a will or trust. She is trust worthy, patient, empathetic and easy to work with. My clients have enjoyed working with her and I know she does a thorough job. I highly recommend Diana as a trusted attorney."
Unknown Attorney | Jan 18
Relationship: Worked together on matter
"Diana is a great attorney. I have worked with her and she is intelligent and hard working. I endorse this attorney!"
Personal injury Attorney | Apr 13
Relationship: Fellow lawyer in community
"I endorse this lawyer's work. Diana Kaye Zilko works hard for her clients, and gets great results. She really cares for her clients, and it shows in the passionate way that she advocates for them. If she is your lawyer, you are certainly in good hands."
Unknown Attorney | Feb 03
Relationship: Fellow lawyer in community
"Attorney Zilko is respected by colleagues and is dedicated to the field and her clients. She is strategic, compassionate and a relentless attorney who goes the extra mile for her clients. Her experience makes her uniquely qualified to provide the practical advice that matters most to clients. I endorse this attorney because, in addition to those qualities, I know that she can be trusted to handle the case to the best of her ability."
Bankruptcy and debt Attorney | Jan 30
Relationship: Fellow lawyer in community
"Diane Kaye Zilko is a Top Lawyer who gets her clients results. If you need the best in representation call her. I endorse her."
Estate planning Attorney | Jan 18
Relationship: Fellow lawyer in community
"Diana is an excellent attorney who takes a personal interest in all of her clients. I highly endorse her"
Divorce and separation Attorney | Aug 06
Relationship: Worked for lawyer
"I endorse this lawyer."
Personal injury Attorney | Aug 06
Relationship: Opposing Counsel on matter
"I endorse this lawyer."
Unknown Attorney | Jul 17
Relationship: Fellow lawyer in community
"I endorse this lawyer. Highly respected in legal community. Responses are clear and complete. Fabulous credentials. Demonstrates a thorough understanding of BK law."
Divorce and separation Attorney | Mar 24
Relationship: Fellow lawyer in community
"I have known Ms. Zilko for the past year and find her to be a passionate advocate for her clients in divorce matters. She has a strong grasp of the applicable laws and will work hard to help her clients achieve their goals. I highly recommend her for our friends in North Orange County, Brea/Fullerton."
Unknown Attorney | Jan 25
Relationship: Fellow lawyer in community
"Diana is the first attorney I refer potential clients to for family law matters. She is down-to-earth, responsive, and honest. I highly recommend Diana for any client looking for a good family law attorney."
Unknown Attorney | Nov 27
Relationship: Other
"I am very impressed with Diana Zilko and her credentials. I endorse this attorney."
Family Attorney | Feb 04
Relationship: Opposing Counsel on matter
"Diana works diligently to ensure that her clients' interests are protected. I highly respect the work that she does in family law, as well as bankruptcy, personal injury, and estate planning. I can recommend her without hesitation."
Family Attorney | Jan 30
Relationship: Fellow lawyer in community
"Diana is an excellent attorney who knows all of her practice areas well. I have referred my own family to her for estate planning and have referred numerous other clients to her for family law matters. If you're looking for a talented attorney with high morals and ethics, you have found the right person!"
Bankruptcy and debt Attorney | Aug 22
Relationship: Worked together on matter
"I have referred several clients to Diana, as I believe she is one of the most competent and ethical attorneys I have come across in my years of practice. She is very knowledgeable about the law and dedicated to zealous representation of her clients."
Family Attorney | Aug 25
Relationship: Fellow lawyer in community
"I have known Diana Zilko for over a year, and we have cooperated in negotiating a premarital agreement for our respective clients. I have found Diana to be rational, reasonable, knowledgeable, and ethical. I have been a licensed attorney in Orange County since 1984, and I've met all types of attorneys. I can truly say that Diana is one of the good ones, a paragon of what it means to be a legal professional."
Personal injury Attorney | Aug 19
Relationship: Fellow lawyer in community
"I strongly endorse Diana and her personal injury and bankruptcy practices. I refer potential clients to her in those areas of the law with much confidence. It is a great advantage to me and my business law practice to have Diana available as a referral source. My contacts are in good hands with her."
View more endorsements
Personal injury
Real estate
Divorce and separation
Employment and labor
Criminal defense
Workers compensation
Personal injury
Brea Divorce and separation Lawyer Diana Kaye Zilko
Diana Kaye Zilko
Divorce and separation Attorney
Brea, CA
Licensed for 27 years
Free Consultation