Paul W. Zimmer

Tel | 414.276.5000




  • University of Wisconsin Law School (magna cum laude)
  • University of Wisconsin–La Crosse (B.S., honors)

Paul W. Zimmer

Diligent and Fearless Representation

Paul is a member of the Litigation and Real Estate Practice Groups of O’Neil, Cannon, Hollman, DeJong & Laing S.C. He assists clients with prosecuting and defending all types of civil litigation cases. He has experience representing clients in business and franchise litigation, construction and real estate disputes, inheritance disputes, and class action lawsuits, to name a few.

Paul has had tremendous success both in the trial court and on appeal. Paul won a case at the Wisconsin Supreme Court setting precedent in the law of property tax classification of agricultural land. In addition, Paul has handled several trials, including winning two week-long jury trials in contentious real estate disputes. Paul has also won numerous cases at the Wisconsin Court of Appeals, including published decisions setting precedent in the areas of construction lien waivers, recovery of attorneys’ fees in litigation, and property tax classifications.

Paul simply enjoys practicing law and is dedicated to obtaining favorable results for his clients.

Experience/Representative Client Work

  • Mid America Steel Drum Properties, LLC et al. v. Container Life Cycle Management LLC, Milwaukee County Case No. 19-CV-644 (jury verdict in client’s favor for over $450,000 in damages for unjust enrichment in the use of client’s properties and judgment dismissing defendant’s claim for reformation of lease).
  • Great Lakes Excavating, Inc. v. Dollar Tree Stores, Inc., 2021 WI App 23, 397 Wis. 2d 210, 959 N.W.2d 351 (published decision of court of appeals affirming summary judgment for client and holding contractor waived its construction lien rights in disputed lien waiver document).
  • Wind Point Restoration, Inc. v. Anne Weikel, No. 2018AP2258, 2020 WL 6051095 (Wis. Ct. App. Oct. 14, 2020) (affirming trial verdict in client’s favor, plus award of attorneys’ fees against opposing party).
  • Central United Methodist Church v. City of Milwaukee, Case No. 19-AP-778, 2020 WL 1264074 (Wis. Ct. App. Mar. 17, 2020) (decision of the court of appeals reversing circuit court and holding client’s church parking lot is tax exempt despite use of lot to collect donations from people parking there for nearby concerts).
  • Christopher Hookstead v. Gary Beal, et al, Dodge County Case No. 19-CV-242 (jury verdict in client’s favor defeating plaintiff’s adverse possession claim and obtaining judgment on counterclaim for nearly $400,000 in damages, punitive damages, and attorneys’ fees, following week-long trial).
  • Parrish v. Weaver, Eastern District of Wisconsin Case No. 2:17-cv-01500 (summary judgment for defendant in alleged misrepresentation and failure to disclose home defect case for alleged water entry into basement).
  • State ex rel. Peter Odgen Family Tr. of 2008 v. Bd. of Review, 2019 WI 23, 385 Wis. 2d 676, 923 N.W.2d 837 (unanimous decision of the Wisconsin Supreme Court holding agricultural taxation of real property does not require business intent, saving client over $800,000 in assessed property value for taxes).
  • State ex rel. Peter Ogden Family Tr. of 2008 v. Bd. of Review for Town of Delafield, 2018 WI App 26, 381 Wis. 2d 161, 911 N.W.2d 653 (published decision of court of appeals reversing circuit court’s dismissal of certiorari petition).
  • Talmer Bank & Tr. v. Jacobsen, 2018 WI App 15, 380 Wis. 2d 171, 908 N.W.2d 495 (published decision of court of appeals clarifying that the third-party exception to the American Rule applies in breach of contract actions).

Professional Associations & Affiliations

  • American Bar Association
  • State Bar of Wisconsin
  • Milwaukee Bar Association

Court Admissions

  • Wisconsin
  • U.S. District Court, Eastern District of Wisconsin
  • U.S. District Court, Western District of Wisconsin


  • Order of the Coif, honorary scholastic society for law students
  • J. Michael Riley Award for excellence in the study of tort law
  • Dean’s List, University of Wisconsin Law School, magna cum laude
  • Dean’s List, University of Wisconsin–La Crosse, honors
  • Member of Pi Sigma Alpha, honorary society of the American Political Science Association

Community Involvement

  • Member, Bench Bar Committee of State Bar of Wisconsin
  • T-Ball Coach, Erin Baseball
  • Past Member, Brown Deer Plan Commission
  • Past Chairman, Brown Deer Zoning Board of Appeals