DUI
Phil has worked in the McHenry County courthouse since 1988 and focuses his DUI practice in McHenry County.
Call (815) 545-7775Phil Prossnitz has worked both sides of the courtroom. Start with the part of the law that brought you here, then read the record behind his work.
Phil has worked in the McHenry County courthouse since 1988 and focuses his DUI practice in McHenry County.
Call (815) 545-7775From prosecution to defense, Phil has worked inside the McHenry County courthouse since 1988.

Phil was born and raised in Evanston, graduated cum laude from Duke University, and graduated from Tulane School of Law in 1980. He worked as an Assistant District Attorney in New Orleans, then returned to Chicago for substantial civil courtroom experience before returning to prosecution in 1988.
He became Chief Assistant State’s Attorney in McHenry County and started his own firm in 2000. His practice is devoted to criminal defense, personal injury, and civil lawsuits.
Each file is a starting point. The full practice-area record is on Phil's existing site.
Phil focuses his DUI practice on McHenry County and has worked in its courthouse since 1988.
Open practice recordHe spent 15 years as a prosecutor and 20 years as a defense attorney, handling cases from traffic matters to murders.
Open practice recordCivil cases have included falls in a grocery store, auto accidents, and wrongful death cases.
Open practice recordPhil represents people charged with crimes ranging from domestic battery to serious Class X felonies.
Open practice recordHis work includes civil disputes, with courtroom experience on both sides of the matter.
Open practice recordA few plain questions can tell you when a lawyer belongs in the room.
Does your issue involve the law?
Does the other party have a lawyer?
Could you lose your rights or your freedom without counsel?
Finding the right lawyer depends on experience with the issue, familiarity with local courts and procedures, and the approach the lawyer will take. Call Phil at (815) 545-7775.
Milestones from Phil's education, courtroom work, and service.
Tulane School of LawPhil graduated and began practicing law.
McHenry County courthousePhil returned to prosecution and has worked in the courthouse since this year.
His own firmPhil started his own law firm.
As prosecutorHe handled over 3,500 felony drug cases and 16 murder cases during that period.
As defense attorneyHis practice is now devoted to criminal defense.
Coast Guard AuxiliaryPhil served as an aircraft pilot and holds flight instructor and commercial pilot certificates.
Cum laudePhil graduated cum laude from Duke University.
Assistant District AttorneyHe tried felony jury trials, including 13 murder cases.
These excerpts are from the saved review record and the homepage testimonial.
The real gladiator was my Attorney, Phil Prossnitz! He had the wisdom, experience and cunning to see through their veil of delay tactics, and the control to thoughtfully act rather than react. He is a skilled technician, a careful observer and disciplined student. But most important, and rare in his line of work, he is a good and respectable man.JOE TIRIO / HOMEPAGE TESTIMONIAL
“Very competent. He was an aggressive prosecutor and one of the best I worked with in my 29 years in law enforcement. I would highly recommend him.”
A. MICHAEL DEFRANCO · SEP 27, 2023“Phil was great! Very efficient, professional, and knowledgeable. I'll refer him any time I can and will use him in the future....Hopefully I won't need to though. :)”
MICHAEL METE · JUL 24, 2023“Phil is awesome. He helped me through a very dark time in my life. Very professional and responsive.”
MIKE MAJERCIK · JUN 28, 2023“Professional, helpful, insightful, and provided continued support with any of my follow up questions.”
ZACHARY LILLY · SEP 14, 2021Phil will refer a matter to another lawyer better qualified to serve the client's interests.