William Arnault

William Arnault

Litigation - Bankruptcy
Recognized in Best Attorney USA since 2023

About William

William Arnault: Litigation Partner in Bankruptcy and Complex Commercial Cases

Bill Arnault is a litigation partner at Kirkland & Ellis LLP's Chicago office, where he focuses his practice on restructuring matters.

Practice Areas

  • Litigation - Bankruptcy
  • Litigation - Complex Commercial Cases (including Contract, Energy, Fiduciary Duty, Fraudulent Transfer, Bankruptcy, and Employment Cases)

Education & Credentials

  • Universities: Cornell University, Boston College
  • Education: Obtained his Juris Doctor (J.D.) from Boston College Law School in 2010. He also holds a Bachelor of Arts degree from Cornell University.
  • Bar Admissions: Admitted to practice law in the State of Illinois, United States
  • Awards: Recognized: Litigation - Bankruptcy (in Best Attorney USA since 2023)
  • Firms: Bill Arnault previously worked as a litigation partner at Kirkland & Ellis LLP in Chicago. He has also served as a counsel for other law firms in various matters.
  • Affiliations: Member of the Illinois State Bar Association and American Law Institute
  • Languages: Fluent in English, proficiency in Spanish.
  • Recognized Since: Recognized in Best Attorney USA since 2023
  • Location: Bill Arnault practices law in Chicago, Illinois, United States.

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Reviews

4.6 / 5

37 Reviews

1,064 Profile Views

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Andrea Mitchell

Jan 29, 2026

Five stars for the incredible team at William Arnault in Chicago - they are amazing

Really glad I found William Arnault for my case. They were a huge help and made everything understandable. I was very impressed with their knowledge and how they handled the opposition. If you're in I...

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Kathy Smith

Jan 29, 2026

A very good experience overall with the entire team at William Arnault's legal practice

I appreciate how William Arnault handled my case. No fluff, just straight to the point and very effective representation for my Litigation - Bankruptcy law matter. They are obviously very experienced...

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Denise Mosciski

Jan 29, 2026

Highly recommend William Arnault for anyone needing expert Litigation - Bankruptcy law help in Illinois

I was really stressed about my case in Chicago, but William Arnault made everything so smooth and stress-free. Seriously, the best decision I've made lately was hiring them. They handled every detail...

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Florence Dare

Jan 29, 2026

A huge weight off my shoulders thanks to the amazing work of William Arnault

William Arnault has been doing this since Recognized in Best Lawyers since 2023, and it definitely shows in their work. They're pros through and through and I wouldn't trust anyone else with my legal...

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Laurence Purdy

Jan 29, 2026

So glad I called William Arnault to handle my Litigation - Bankruptcy law case in Chicago

I wasn't sure who to call for my Litigation - Bankruptcy law problem, but I'm so glad I went with William Arnault. They really listened to me and understood my situation. It was such a relief to have...