312-701-1111 inquiries@pwolaw.com


Parrillo, Weiss & O’Halloran has enjoyed decades of courtroom success due to our ability to identify and train superior trial lawyers. The attorneys of PWO continually exceed the expectations of our clients, whether through trial or settlement.

Over 45 years ago, PWO was founded as a specialty law firm to maintain a limited clientele of non-standard insurers.  The consistency of our verdicts and settlements, however, has attracted a number of carriers who have grown weary of overpaying on suspect claims.  As a result, our client list now includes a diverse group of insurance carriers, and we maintain a full compliment of trial attorneys in our Chicago, Boca Raton and Tempe offices.

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News Chicago

Parrillo, Weiss & O’Halloran is very proud of our newest Partners, Cindy Ekstam, Amy Kelly and John Covert.  

PWO is also pleased to announce the hiring of our two new associates Lauren Scalzo and Erin House.

News Florida

Negligent Installation

David Weiss, attorney for a Miami-Dade homeowner, filed suit against the developer for the negligent installation of plumbing pipes and the dimunition of property value. Defendant developer denied liability and made no offer to settle the case. The case went to trial by jury and the jury awarded plaintiff $770,000.00.


77 W. Wacker Dr.
50th Floor
Chicago, IL 60601

Boca Raton

Boca Corporate Center
Suite 213
2101 NW Corporate Boulevard
Boca Raton, FL 33431


1230 W. Washington Street
Suite 205
Tempe, AZ 85281