Atty. William Patrick Marsan
Atty. William Patrick Marsan is a lawyer practicing litigation and trial practice, government affairs, utility regulation and 2 other areas of law.
Government Affairs & More Attorney · Serving Waukesha, WI · 37+ Years Experience
Profile Summary
About William Patrick Marsan at a Glance
William Patrick Marsan is a litigation and government attorney based in Waukesha, Wisconsin. They have 37+ years of legal experience, licensed to practice since 1989. Admitted to practice in Massachusetts (Inactive) (1989), U.S. Court of Military Appeals (1990), U.S. District Court, District of Massachusetts (1993), and U.S. Court of Appeals, First Circuit (1994). Educated at George Washington University (J.D., 1989) and Boston College (B.A., 1986). Serves clients in Waukesha, WI and the surrounding metropolitan area.
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About William Patrick Marsan
- Atty. William Patrick Marsan is a lawyer practicing litigation and trial practice, government affairs, utility regulation and 2 other areas of law
- William received a B.A. degree from Boston College in 1986, and has been licensed for 37 years
- William practices in Waukesha, WI
Practice Areas Explained
William Patrick Marsan's Areas of Legal Practice
Each practice area below reflects the types of cases William Patrick Marsan handles, with a practical overview of what that area of law involves and how it may apply to your situation in Waukesha.
Civil Litigation in Waukesha
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
William Patrick Marsan is one of 450,750 litigation attorneys indexed nationally. Browse litigation attorneys in Wisconsin →
Government & Administrative Law in Waukesha
Attorneys for administrative law, agency hearings, government contracts, licensing, and public benefits.
William Patrick Marsan is one of 131,162 government attorneys indexed nationally. Browse government attorneys in Wisconsin →
Jurisdictional Context
Why Local Counsel Matters in Waukesha
Practicing law in Wisconsin. Legal matters in Wisconsin are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Waukesha are typically filed in the local municipal court or the appropriate Wisconsin state district court, depending on subject matter and amount in controversy. An attorney licensed in Wisconsin 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 Wisconsin courts without local counsel or pro hac vice admission.
Waukesha Courts and Legal Process
Choosing a Waukesha-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 Wisconsin attorneys? Browse all attorneys in Waukesha or all attorneys in Wisconsin.
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Professional Profile
Why Clients in Waukesha Choose William Patrick Marsan
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 William Patrick Marsan's practice in the field of litigation and government.
Decade-Tested Legal Experience
William Patrick Marsan brings 37+ 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 Massachusetts (Inactive), U.S. Court of Military Appeals, and U.S. District Court, District of Massachusetts, William Patrick Marsan can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering litigation and government, William Patrick Marsan can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Waukesha
A Waukesha-based practice means William Patrick Marsan 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 William Patrick Marsan Online
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William Patrick Marsan's Practice Areas & Specializations
Education & Law School Background
Bar Admissions & Licensed Jurisdictions
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