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


Insurance Defense
Litigation And Appeals
Family Law And Divorce
Corporate And Real Estate
Construction Law & Construction Disputes

Big City Legal Services In A Rural Setting

If you are an individual in need of civil trial, appellate court or family law representation, or your business, company or financial institution is seeking general business law services or litigation assistance, The Law Office of Mark E. Sostarich in Elkhorn, Wisconsin, can meet your needs.

Real Results In Elkhorn And Throughout Wisconsin

Statewide Trial And Appellate Counsel

For more than 35 years, we have served as litigation counsel for individuals and corporations, as well as to other attorneys in a broad array of civil matters, including:

  • Intellectual property disputes
  • Written and oral contract claims
  • Business disputes
  • Personal injury claims
  • Real estate disputes
  • Construction issues
  • Contract disputes
  • Family law disputes
  • Other litigation and appellate matters

We can quickly step in at any stage of a legal proceeding and at any time. In fact, we routinely appear on temporary or preliminary injunction cases on extremely short notice.

Our Clients And The Scope Of Our Work

Our firm represents plaintiffs and defendants alike in both trial court and appellate court cases. We are not limited in the scope of matters we can handle or in the type of client we can represent. We also welcome trial and appellate referrals from other attorneys and often serve as local Wisconsin counsel for out-of-state companies and law firms. Attorney is not a pro-plaintiff or pro-defendant-style lawyer. His background includes extensive trial work as a partner in large Milwaukee, Wisconsin, law firms where he routinely represented banks, corporations and other large commercial clients. He has equally extensive experience, however, representing individual parties in court and challenging those same businesses and institutions.

Mark E. Sostarich holds an AV Preeminent rating* — the highest an attorney can achieve through Martindale-Hubbell’s peer review ratings process.

Our Practice

Attorney Sostarich regularly appears in circuit courts throughout Wisconsin, including those in Milwaukee, Kenosha, Racine, Rock, Jefferson, Dane, Waukesha, and Walworth counties. We are also experienced in representing clients in U.S. District Court for the Eastern District of Wisconsin and in U.S. District Court for the Western District of Wisconsin.

Lastly, with respect to appeals, attorney Sostarich frequently authors appellate briefs and makes oral arguments before the Wisconsin Court of Appeals, the Wisconsin Supreme Court and the United States Court of Appeals for the 7th Circuit.

Contact The Firm

Call Us To Arrange A Free Consultation

We are available to clients 24 hours a day and routinely schedule evening and off-site appointments. If you have urgent legal issues that need to be resolved now or you will need representation in civil litigation at some point in the near future, contact us online or call our office toll free at 800-837-6956. Schedule a free initial consultation with Elkhorn family law attorney .

For convenience, we also accept MasterCard, Visa, American Express and Discover and offer flexible billing arrangements.

Whenever or wherever in Wisconsin, we are here and ready to help any client who needs an experienced, aggressive attorney to protect personal or business interests.