Atty. Daniel Patrick Duffy
Atty. Daniel Patrick Duffy is a lawyer practicing appellate practice, civil appeals, civil litigation and 2 other areas of law.
Appellate Practice & More Attorney · Serving Chicago, IL · 32+ Years Experience
Profile Summary
About Daniel Patrick Duffy at a Glance
Daniel Patrick Duffy is a litigation and appellate attorney based in Chicago, Illinois. They have 32+ years of legal experience, licensed to practice since 1994. Admitted to practice in Wisconsin U.S. District Court, Northern District of Illinois (1994) and Illinois U.S. Court of Appeals, Seventh Circuit U.S. District Court, Eastern District of Wisconsin U (1995). Educated at University of Notre Dame (J.D., 1993) and University of Notre Dame (B.A. Vanderbilt, 1987). Recognitions include BV Distinguished. Serves clients in Chicago, IL and the surrounding metropolitan area.
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About Daniel Patrick Duffy
- Atty. Daniel Patrick Duffy is a lawyer practicing appellate practice, civil appeals, civil litigation and 2 other areas of law
- Daniel received a B.A. degree from University of Notre Dame in 1987, and has been licensed for 32 years
- Daniel practices in Chicago, IL
Practice Areas Explained
Daniel Patrick Duffy's Areas of Legal Practice
Each practice area below reflects the types of cases Daniel Patrick Duffy handles, with a practical overview of what that area of law involves and how it may apply to your situation in Chicago.
Civil Litigation in Chicago
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Daniel Patrick Duffy is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in Illinois →
Appellate Practice in Chicago
Appellate attorneys for civil and criminal appeals at state and federal court.
Daniel Patrick Duffy is one of 85,572 appellate attorneys indexed nationally. Browse appellate attorneys in Illinois →
Jurisdictional Context
Why Local Counsel Matters in Chicago
Practicing law in Illinois. Legal matters in Illinois are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Chicago are typically filed in the local municipal court or the appropriate Illinois state district court, depending on subject matter and amount in controversy. An attorney licensed in Illinois brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Illinois courts without local counsel or pro hac vice admission.
Chicago Courts and Legal Process
Choosing a Chicago-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional Illinois attorneys? Browse all attorneys in Chicago or all attorneys in Illinois.
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Professional Profile
Why Clients in Chicago Choose Daniel Patrick Duffy
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Daniel Patrick Duffy's practice in the field of litigation and appellate.
Decade-Tested Legal Experience
Daniel Patrick Duffy brings 32+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Multi-State Bar Admission
Licensed in Wisconsin U.S. District Court, Northern District of Illinois and Illinois U.S. Court of Appeals, Seventh Circuit U.S. District Court, Eastern District of Wisconsin U, Daniel Patrick Duffy can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering litigation and appellate, Daniel Patrick Duffy can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Chicago
A Chicago-based practice means Daniel Patrick Duffy attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
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How People Find Daniel Patrick Duffy Online
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Daniel Patrick Duffy's Practice Areas & Specializations
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