Halling & Cayo, S.C.

02/11/2026

We are pleased to announce the promotion of Stephen Cox from Associate Attorney to Partner.

Since joining the firm, Stephen has consistently demonstrated exceptional legal expertise, strong client commitment, and a collaborative spirit that reflects our firm’s values. This well-earned promotion recognizes his outstanding contributions and leadership.

Please join us in congratulating Stephen on this significant achievement.

12/02/2025

Big news at Halling & Cayo! 📣
We are excited to welcome Attorney Brent Nistler to our team. Brent is a seasoned trial lawyer with over 20 years of experience and has tried over 50 cases to jury verdict.
Whether it’s a complex business dispute, a real estate or construction litigation matter, or a sensitive probate case, Brent brings a wealth of knowledge and a track record of success to our clients. He has been recognized as a "Leader in the Law" and a Super Lawyer for over a decade, and we are thrilled to have his expertise in our corner.
Join us in welcoming Brent! 👋
Learn more about Brent here:
https://hallingcayo.com/attorneys/brent-d-nistler/

08/21/2025

Congratulations to Andy Skwierawski, Sean Sweeney, Richard Cayo, Patricia Grove, Mark Sanders, and Ted Warpinski for their recognition by Best Lawyers in America!

03/03/2025

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01/09/2025

Another appellate win!

The Wisconsin Court of Appeals, District II, found that the egregious actions of our client's prior attorney should not be imputed to our client. Her claims have been reinstated and sanctions against her have been vacated.

This decision has been recommended for publication, and offers an important clarification as to whether, and when, a client should be held responsible for the actions or non-actions of their attorney. This is good news for litigants who may have no way of knowing that their attorney is not doing their job until it's too late.

Congratulations to Halling & Cayo attorneys Stacie H. Rosenzweig and Stephen Cox for righting the ship.

11/15/2024

Congratulations to six Halling & Cayo lawyers who have been recognized by Super Lawyers as some of the best lawyers in Wisconsin in their respective practice areas.


Super Lawyers:

Patricia Grove (Family Law)
Stacie Rosenzweig (Professional Liability - Defense)
Andy Skwierawski (Environmental Litigation)
Sean Sweeney (Securities Litigation)
Ted Warpinski (Environmental Litigation)


Rising Star:

Stephen Cox (Business/Corporate)

10/09/2024

Great job today in front of the Wisconsin Supreme Court Dan.
https://hallingcayo.com/wisconsin-supreme-court-arguments-regarding-judicial-oversight-of-wiaa-rulings/

08/19/2024

Congratulations to Andy Skwierawski, Sean Sweeney and Ted Warpinski for the recognition by Best Lawyers in America

Congratulations to our lawyers recognized by Best Lawyers® in 2025 in America. Andy Skwierawski for Environmental Law, Litigation - Environmental, and

05/31/2024

Great Work by Ted Warpinksi and Andy Skwierawski with help from the whole H&C Team.

Halling & Cayo is happy to report the good work of its lawyers Ted Warpinski and Andy Skwierawski, with assistance from Stephen Cox, Trevor Leverson,

04/30/2024

The Wisconsin Supreme Court affirmed the City of Milwaukee Fire and Police Commission's decision to terminate a police officer for posting racist memes in the wake of the arrest of NBA player Sterling Brown.

We are proud to have represented the Fire and Police Commission in this important case. The matter was argued at the Supreme Court by H&C shareholder Stacie Rosenzweig.

02/28/2024

We are thrilled for our client, Hayden Halter, as the Wisconsin District II Court of Appeals reinstated his state wrestling title. The court held today that the Wisconsin Interscholastic Athletic Association (WIAA) acted arbitrarily and violated its written appeal procedures. This favorable decision has been recommended for publication.
Hayden’s team was headed by Halling & Cayo S.C. shareholder Stacie Rosenzweig.

Read more about this decision: https://lnkd.in/g29MNbXi