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William James Arendt

Divorce and separation Attorney at Burr Ridge, IL

4.8   28 reviews
  • Licensed for 38 years
    State IL
    Acquired 1985
    Active and Authorized to Practice Law No misconduct found

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

About William

Learn William’s areas of practice.

Mr. Arendt represents clients in all phases of litigation and disputes. His practice focuses on all aspects of family law, including divorce and custody litigation, commercial litigation, and state and federal appeals. Mr. Arendt has over 25 years of trial experience in the courtroom and negotiating settlements. Mr. Arendt opened his own law firm in 1999 in Burr Ridge, Illinois, after practicing for 14 years at a downtown Chicago litigation law firm. As a skilled, experienced, and aggressive trial lawyer, Mr. Arendt has the straight-forward and honest approach necessary to best provide effective representation to his clients. He ensures that his clients are consulted, involved, and empowered during each step of the legal process.

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William J. Arendt & Associates, P.C.
7035 Veterans Boulevard
Suite A
Burr Ridge, IL, 60527-5677

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4.8 / 5.0
  28 customer reviews
Posted by Karen | October 29, 2020
This review is from a person who hired this attorney.
| Hired Attorney
Experienced and Dedicated
My family ended up in a very complicated and very sad divorce situation. In and out of court, Bill's legal skill and experience kept the case moving forward even when the opposing council was working every angle to dally and delay. Like many probably do, our situation went well beyond the usual legal wranglings and Bill and his team took care of our family like they would have their own. We will be forever grateful. I've learned a lot about divorce and the divorce process. Of all I've learned, the most important thing is to make sure you have the right attorney. Bill is the right attorney.
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Posted by anonymous | October 26, 2020
This review is from a person who hired this attorney.
| Hired Attorney
Outstanding Legal Counsel - Nicola
My 30+ year marriage went into a tailspin, which forced me to pursue legal counsel. My very close circle of family and friends overwhelmingly recommended William J. Arendt & Associates. I scheduled an appointment to meet and discuss my situation with Nicola K.B. Latus (Nikki). When I met with Nikki, I was a broken man. Nikki’s ability to listen, have compassion, and creatively interject with questions, concerns, and what the law dictates, far exceeded all my expectations. During my journey, Nikki consistently demonstrated superb communication skills, superior analytical and logical abilities, and unsurpassed knowledge of the legal system, that completely morphed me from a broken man to being revitalized and stronger than ever. Imagine this, not only is Nikki a phenomenon of an attorney, she is also concern about your finances. As battles erupted with opposing counsel during this process, Nikki will proactively advise the best logical path moving forward, minimizing your financial hit. In summary, and you have heard this excerpt before, “I pity the fool that doesn’t hire Nikki for legal representation.”
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Posted by Christine | October 14, 2020
This review is from a person who hired this attorney.
| Hired Attorney
Highly Recommended
I hired Bill to represent me with a child support issue. Bill was professional and caring. He listened to my concerns, gave me his honest professional opinion so that I had an idea of what to expect. I left his office feeling confident that I was in good hands. He kept me informed of every move and was able to get the issue resolved quickly.
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Posted by anonymous | October 1, 2020
This review is from a person who hired this attorney.
| Hired Attorney
Divorce Case
I hired Bill to represent me when I filed for divorce. He did an excellent job of focusing me on the important issues throughout the process. I was impressed with his thorough and comprehensive approach. I always felt informed as to where we were in the process as he set realistic expectations for timelines. It was very apparent during my divorce that Bill has earned the respect of the judges and GALs which made him very effective at navigating the obstacles that arise during every divorce. I would highly recommend Bill to anyone needing assistance with their divorce.
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Posted by Darren | September 30, 2020
This review is from a person who hired this attorney.
| Hired Attorney
Highly recommended attorney
Bill handled a post decree matter for me with exceptional skill, professional demeanor and sound judgment. Bill does not mess around with petty issues or arguments and cuts right to the issues at hand, offering productive solutions which the Court and its appointees support. I was walked through the process with great detail by Bill and his colleague Nikki, who is also equally talented, and they appropriately prepared me for every eventuality. I cannot recommend Bill more highly to anyone in need of his services.
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Posted by Cindy | February 11, 2011
Bill handled a very long, drawn out, and difficult case for me over a 4 year period. His professionalism was exceptional as was his knowledge of the law. Bill performed thorough research when needed and kept me informed of issues continually throughout the case.
Posted by Michael | February 9, 2011
Review of Attorney William Arendt
Bill Arendt is a competent and well respected attorneys. The judges respect his opinion. His knowledge of the law is exceptional. I have used him for corporate matters and he was excellent. His knowedge of corporate and tax matters is particularly helpful in divorce situations.
Posted by anonymous | February 8, 2011
Attorney Referral
Bill handled a divorce matter for me. I am extremely happy with his handling of the case from beginning to end. His terrific office staff helped move things along smoothly. Divorce can be a very traumatic, time-consuming event. You should have a competent professional on your side. I would strongly recommend Bill Arendt to my friends, family, and business associates.
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Posted by anonymous | February 8, 2011
Highly recommended attorney
Bill Arendt is an excellent attorney. Very knowledgeable, professional, and experienced. Understands not only the law, but also how things will play out in court or at trial. Extremely responsive - great at returning calls and keeping me updated. Gives good, practical advice even if it could mean less legal fees for him - seems truly interested in obtaining the best result for his clients. I highly recommend Bill.
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Posted by anonymous | February 5, 2011
Attorney of choice
Great attorney. Everything he advised was always correct. Very responsive when needing to contact him.
Posted by yjc | January 19, 2011
not all attorneys are created equal
I got through my divorce with the expected bumps and bruises. However, my post-decree legal headaches proved to be much more formidable. What I've discovered is that the law is a virtual mine-field for subjective interpretation and one not-so-stable ex empowered by a unethical attorney make for a lot of headaches. Bill Arendt has been invaluable in helping me understand the legal process, keeping me grounded and trying to help steer me towards a reasonable resolution.
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Posted by Donald Berg | January 19, 2011
Overall view
Bill took care of many issues that seemed to be impossible. My overall experience was good considering the circumstances.
Posted by anonymous | January 18, 2011
Divorce can take a LONG time
My divorce took several years in which Bill always kept me informed of what was going on and offered excellent advice but also listened and understood my wishes. We are divorced but when my x stopped making alimony payments I once again called Bill and he once again represented me. It is a difficult time but I felt very secure once I hired Bill and his staff and the entire company is friendly and professional. I highly recommend the firm of Bill Arendt.
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Posted by Jim | January 18, 2011
Best I've seen
I have dealt with many well known lawyers over 20 years. Bill is the best I have ever come in contact. Bill has a wealth of legal knowledge and is able to express his ideas both in writing and verbally. Bill will defend his client but just as important he will do what is right by his clients. Bill will lead you in the right direction, and he takes a true interest in his clients.---No matter how hard you look you will never find a better lawyer to be in your corner. I very seldom recommend people, but in this case, he is truely outstanding.
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Posted by anonymous | January 18, 2011
Excellent Legal Representation
I interviewed several attorneys prior to selecting Bill as my divorce attorney and never regretted it. Bill guided me through this very difficult process with confidence and compassion. He was always available and handled everything himself. My questions and concerns were given the utmost priority. Everything was done competently and expediently, including the complicated issues involved in a business valuation, custody agreement and asset divisions. He continues to be supportive despite finalization of my divorce.
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Posted by Jamie | January 18, 2011
Great relief to have someone on my side.
Mr. Arendt assisted me with a delicate family matter, and I could not have been happier with his services. He went above and beyond to explain things clearly, return phone calls, and help resolve the situation in a timely manner. I was very impressed with the professionalism of not only Mr. Arendt, but of his office staff as well. I would definitely recommend his services to friends and family.
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Posted by Jerry | January 17, 2011
If you're looking for Intelligence, Integrity and Honesty, speak with Bill.
I approached Bill to represent me after seeing him in action representing another client. In that engagement, I believed him to be knowledgeable and focused on a fair resolution. I was looking for a smart, fair-minded famly lawyer, and I was not disappointed. Bill took up my matter, which had a history of distrust and contention with my spouse. He didn't waste my or his time or his engaging in ways to dispute our positions, focusing instead on the statutes and how they have been shaped by current case law. I was impressed that he knew myst of the current cases from memory. In a matter of a few weeks, we came to a satisfactory, uncontested agreement that both parties considered fair. I particularly appreciated his explanation of how to use his time effectively to keep fees in check, and his quick response to my e-mails. I've worked with a number of attorneys over the past two decades, and Bill is at the top of my list.
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Posted by Vincent | January 17, 2011
Arendt/Corp Attorney-Advisor
Bil is uniquie in that while he is a gifted litigator he is equally adept in tranactional matters. Additionally, Bill's practice is geared toward middle market buisiness & in dealing with him for over 20 years he has always priced his services fairly. We would heartily recommend him to any small to medium buisess/business owner
Posted by William | January 15, 2011
Excellent Counsel and Representation
I came to Mr. Arendt from a referral with a rather complicated family problem and he carefully explained my legal options as well as some good old fashion common sense thoughts on my problem. He saved me alot of time, money and aggravation with an ex wife and helped my relationship with my children.
Posted by Mr. C | January 15, 2011
EXCELLENT Divorce Attorney
I was given Mr. Arendt's name approximately ten months ago to facilitate a prolonged divorce. After our initial meeting/interview, I chose Mr. Arendt over two other lawyers I had also spoked with. From that point on there were no surprises, and I felt him to be a very competent, efficient, well advising friend in my corner. My settlement was better than expected and his fees were very fair.
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  • Retainer Sometimes
Payment methods
Cash, Check, Credit Card


AVVO RATING 8.6 (Excellent)

Work Experience

  • Partner
  • William J. Arendt & Associates, P.C.
  • 1999 - Present
  • Partner
  • Field, Golan & Swiger
  • 1993 - 1999
  • Partner
  • Kanter & Mattenson, Ltd.
  • 1985 - 1993


  • John Marshall Law School, Chicago
  • JD - Juris Doctor
  • 1985
  • Loyola University Chicago
  • BA - Bachelor of Arts
  • 1982


  • Will County Bar Association
  • Member
  • 2005 - Present
  • Illinois State Bar Association
  • Member
  • 1999 - Present
  • DuPage County Bar Association
  • Member
  • 1999 - Present
  • Illinois State Bar Association, Family Law Section
  • Member
  • 1999 - Present
  • Illinois State Bar Association, General Practice, Solo, and Small Firm Section
  • Member
  • 1999 - Present
View all associations

Honors and Awards

  • Admitted to Practice
  • United States Supreme Court
  • 2008
  • Executive Editor of the Law Review
  • John Marshall Law School
  • 1985


  • John Marshall Law Review
  • Cameras in the Courtroom
  • 1985
  • John Marshall Law Review
  • Search & Seizure on the High Seas
  • 1984

Speaking Engagements

  • Bar Review Course
  • Illinois Civil Procedure
  • 1993
  • Sonja Live
  • Men Seeking Custody
  • 1992
  • Oprah Winfrey Show
  • Paternity Testing
  • 1991

Attorney endorsements

Received (9)
Given (3)
Endorse William
Family Attorney | Apr 17
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Divorce and separation Attorney | Jan 31
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Family Attorney | Jun 05
Relationship: Opposing Counsel on matter
"I endorse this lawyer. Mr. Arendt is a professional attorney who is well versed in his areas of practice. He is a an excellent advocate for his clients and a professional to work with"
Unknown Attorney | Jan 06
Relationship: Opposing Counsel on matter
"Bill is a top notch attorney in our county who is highly respected by lawyers and judges alike. I give him all five stars."
Family Attorney | Mar 15
Relationship: Worked for lawyer
"I had the lucky opportunity to work for Bill and I highly endorse him. While working for Bill, I came to know the high quality of his work, his constant professionalism, and his good standing among his peers. He cares about his clients and understands how to not only help them, but to go beyond the surface of the issues to exceed clients’ expectations. His dedication to educating himself on the issues related to his practice areas demonstrates his commitment to better serve the needs of his clients. I am privileged to have had the opportunity to work with him. He is an excellent attorney who is well-respected by judges, his clients and peers."
Litigation Attorney | Feb 10
Relationship: Fellow lawyer in community
"I endorse this lawyer. No one knows the law or the mechanics of the law bettter than Bill Arendt. He is reasonable, practical and well respected by the Judges as well as other attorneys. I recommend him without reservation."
Litigation Attorney | Jan 18
Relationship: Co-worker
"Bill Arendt comes to each case with a plan to win. He knows how to negotiate, but always remains aggressive. Bill has the knowledge and experience to litigate a wide range of cases, including everything from commercial and business law to divorce."
Divorce and separation Attorney | Jan 14
Relationship: Fellow lawyer in community
"I have had several cases with Bill that have had difficult issues or tense emotions. We can argue our sides with dignity and then resolve the case like gentlemen. I endorse Bill"
Family Attorney | Jan 13
Relationship: Co-worker
"Bill Arendt's 26 years of experience trying cases and negotiating settlements show in his representation of each of his clients. He has a straightforward and honest approach that both his clients and his opponents appreciate, and an ability to get results without fighting needlessly. He is extremely knowledgable in all areas of the law, particularly family law and business law. If you have a question, Bill Arendt is usually the man with the answer."
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Criminal defense
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Burr Ridge Divorce and separation Lawyer William James Arendt
William James Arendt
Divorce and separation Attorney
Burr Ridge, IL
Licensed for 38 years