Experienced And Aggressive Trial And Appellate Counsel
Serving Elkhorn And Surrounding Areas Of Wisconsin


Resolving Your Business Disputes In Elkhorn and Surrounding Areas

Are you an individual who wants to pursue legal action against a business? Do you need to defend yourself or your business interests in a lawsuit? Has a business partner failed to honor important contractual obligations? Has a competitor or former employee acted unfairly (and illegally) to your company’s detriment? If you answered “yes” to any of these questions, talk to us.

For more than 35 years of experience in the state and federal trial and appellate courts of Wisconsin — and personal representation from an corporate law and real estate attorney with an AV Preeminent rating* (the highest achievable through Martindale-Hubbell’s peer review ratings system) — call or contact The Law Office of Mark E. Sostarich for a free initial consultation regarding any type of business dispute.

A 35-Year Track Record Of Success, A Statewide Practice

Our firm offers extensive experience litigating claims in trial and appellate courts (state and federal) throughout Wisconsin. We represent clients at all stages in the process of a lawsuit as well, from filing and serving the complaint to the appeal of a decision or ruling. We have also served as local trial counsel for countless lawyers and their clients from other states.

Whatever the nature of your business dispute, is the attorney you’ll work with and be personally represented by from start to finish. ‘s previous business litigation clients have included individuals, consumers, business partners, owners of closely held companies, financial institutions, manufacturers, publishing companies, trade organizations and multinational corporations.

Specific types of claims we have handled include:

  • Partnership disputes/disputes among business owners
  • Business contract disputes
  • Real estate and/or construction disputes (commercial and residential)
  • Employment disputes (e.g., restrictive covenant enforcement and challenges)
  • Intellectual property disputes (trademarks, copyrights, trade secrets)
  • Professional malpractice claims
  • Professional licensing disputes
  • Administrative agency appeals
  • Defense of civil claims
  • Appeals

While our offices are located in Elkhorn, Wisconsin, we have a statewide practice that includes Milwaukee, Kenosha, Racine, Jefferson, Dane and Walworth counties. We are prepared to travel wherever you need us on extremely short notice (a frequent occurrence with temporary and preliminary injunction cases). To learn more, contact us online or call our office toll free at 800-837-6956 to schedule a free initial consultation with Elkhorn business disputes lawyer today.

For your convenience, we also accept MasterCard, Visa, American Express and Discover, and are open to discussing flexible billing arrangements on a case-by-case basis.