Atty. F. Ellen Duff
F. Ellen Duff is a lawyer practicing securities, leveraged leasing, finance and 3 other areas of law.
Finance & More Attorney · Serving Chicago, IL · 46+ Years Experience
Profile Summary
About F. Ellen Duff at a Glance
F. Ellen Duff is a Partner based in Chicago, Illinois, practicing at Winston & Strawn LLP. They have 46+ years of legal experience, licensed to practice since 1980. Their practice focuses on business and securities. Admitted to practice in California (1980), U.S. District Court, Central District of California (1981), Illinois (1982), and U.S. District Court, Northern District of Illinois (1985). Educated at University of Chicago (J.D., 1980) and University of Notre Dame (A.B., 1977). Recognitions include AV Preeminent. Active member of Chicago and American (Member, Section of Business Law) Bar Associations The State Bar of California Lawyers Club of Chicago. Serves clients in Chicago, IL and the surrounding metropolitan area.
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About F. Ellen Duff
- F. Ellen Duff is a lawyer practicing securities, leveraged leasing, finance and 3 other areas of law
- F. received a A.B. degree from University of Notre Dame in 1977, and has been licensed for 46 years
- F. practices at Winston & Strawn LLP in Chicago, IL
Practice Areas Explained
F. Ellen Duff's Areas of Legal Practice
Each practice area below reflects the types of cases F. Ellen Duff handles, with a practical overview of what that area of law involves and how it may apply to your situation in Chicago.
Business & Corporate Law in Chicago
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
F. Ellen Duff is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Illinois →
Securities Law in Chicago
F. Ellen Duff is one of 64,075 securities attorneys indexed nationally. Browse securities 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 F. Ellen Duff
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 F. Ellen Duff's practice in the field of business and securities.
Decade-Tested Legal Experience
F. Ellen Duff brings 46+ 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 California, U.S. District Court, Central District of California, and Illinois, F. Ellen Duff can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering business and securities, F. Ellen Duff 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 F. Ellen Duff attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues F. Ellen Duff Handles in Chicago
Below is a representative sample of the types of matters F. Ellen Duff has experience with under Illinois law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact F. Ellen Duff directly to discuss the specifics of your situation.
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How People Find F. Ellen Duff Online
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F. Ellen Duff's Practice Areas & Specializations
Education & Law School Background
Awards & Professional Honors
Bar Admissions & Licensed Jurisdictions
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