Jacob Sundelius


Areas of Practice

Accident & Workplace Injuries General Litigation


I am a member of the firm’s Litigation Practice Group representing clients in a wide variety of matters with a focus on complex litigation, motion practice, and appellate work. I represent private parties, organizations, and businesses in a wide range of disputes including contract claims, non-compete/restrictive covenant issues, commercial and residential landlord/tenant disputes, real estate matters, class action wage and hour claims, and a variety of other matters. I also represent both victims and insurance companies in personal injury cases including automobile/motorcycle accidents and all other negligent and intentional acts cases. Finally, I represent both insurance companies and individuals/businesses in regards to insurance coverage disputes that often arise in those cases.

I graduated as valedictorian of Kaukauna High School before earing my B.S. with distinction in mathematics and computer science and J.D. magna cum lade both from the University of Wisconsin Madison. While in law school, I clerked at multiple Madison law firms and served as a Judicial Intern to the Honorable David Prosser at the Wisconsin Supreme Court before returning home to join the Menn Law Firm.

Life is complicated, and the law is often even more so. I dedicated my career to helping my busy clients unravel those complexities and navigate the legal process in an aggressive manner to achieve the best possible results. This is the best way I know how to give back to the community where I was born and raised.


  • Administrative Challenges
  • Appeals
  • Auto Accidents Involving Injury and/or Death
  • Contract Disputes
  • Corporate/Partnership Disputes
  • Employment Disputes
  • Harassment/Discrimination/Wrongful Termination Claims
  • Local Counsel Services
  • Non-Compete Challenges
  • Real Estate Disputes
  • Representing Insurers on a Variety of Claims
  • Slip and Fall Accidents
  • Uninsured and/or Underinsured Motorist Claims


Professional Organizations/Court Admissions

  • Outagamie County and Brown County Bar Associations
  • Wisconsin State Courts
  • U.S. District Courts for the Eastern and Western District of Wisconsin
  • 7th Circuit Court of Appeals

Activities & Achievements

Boards, Organizations, Clubs, Etc. (past and present)

  • Kaukauna Lions Club
  • Madison Lions Club
  • Volunteer Mentor/Tudor Kaukauna Area School District
  • Volunteer Judge Local Moot Court Competitions 
  • Volunteer Basketball and Volleyball Coach Kaukauna Elementary School


  • NAOPIA Nationally Ranked Top 10 Under 40
  • America’s Top 100 Personal Injury Attorneys
  • Magna Cum Laude and Order of the Coif at Wisconsin Law School (top 10% of class)
  • Best in Class Awards: Civil Procedure, Federal Jurisdiction, Constitutional Law


“Jacob recently represented my corporation in a complicated case with many moving parts. I feel that Jacob represented my company perfectly, and, most importantly, achieved the exact best case result I asked from when hiring him. Jacob was extremely prompt, professional, and aggressive when needed and I would highly recommend him.”
— Jason, ServiceMaster of Oshkosh

“I’ve never had any experience with having a lawyer, and honestly it terrified me. Thankfully Jacob was by my side for this case. His confidence assured me I was in good hands. He’s very calm and collected, making this situation a breeze when I expected a hurricane. If I ever get into any kind of legal conflict, Jacob is the first one I’m calling without a doubt.”
— Brandon

List of Results

  • Obtained Fed. Rule Civ. P. 12(b)(6) dismissal of large personal injury claim on behalf of multi-national paper corporation based upon Wisconsin’s borrowing statute.
  • Won summary judgment on behalf of metal fabrication company dismissing negligence claims arising from commercial building fire based upon lack of requisite expert testimony.
  • Defeated motion to dismiss wrongful death claim arising from fatal UTV accident based upon recreational immunity and defeated appeal of that decision to Wisconsin Court of Appeals.
  • Obtained Fed. Rule Civ. P. 12(b)(6) dismissal of identity theft based lawsuit on behalf of multi-national satellite television provider.
  • Won summary judgment on behalf of statewide dental practice recovering lost profits damages caused by dentist’s premature breach of employment contract and defeated dentist’s appeal to the Wisconsin Court of Appeals.
  • Defeated insurance company’s motion for summary judgment seeking to avoid its duty to reimburse residential homeowner client for the value of house destroyed by fire.
  • Obtained dismissal of employee’s wage claim on behalf of concrete flatwork company.
  • Won summary judgment on behalf of property management company and its corporate directors requiring plaintiff condominium association to indemnify client management company and directors from plaintiff’s own claims.
  • Obtained dismissal of property dispute lawsuit on behalf of farming entity based upon plaintiff’s failure to comply with heightened pleading standards.
  • Won summary judgment on behalf of home building general contractor dismissing negligence and safe-place statute claims made by subcontractor’s employee injured in a fall from a balcony.
  • Won summary judgment on behalf of a condominium association dismissing numerous misrepresentation and maintenance based claims arising from mold issues.
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