Katheryn A. "Katie" Mills Ybarra

David J. Sisson is a shareholder in the firm’s Litigation and Labor and Employment Practices. David solves problems that arise when critical personal business relationships end. These include disputes involving departing key employees and shareholders in closely held corporations and others who owe fiduciary duties. Controversies often develop at the conclusion of these relationships regarding what may be owned by, or owed to, the respective parties. A departing employee may try to esta...

Shareholder Michael J. Cohen has more than 25 years of experience in complex commercial litigation in federal and state courts. His proven record of numerous favorable verdicts at the trial and appellate levels has earned him a reputation as one of Wisconsin’s preeminent business litigators. For many years, Mike has been recognized by members of the Wisconsin bar and judiciary as one of the top lawyers in the state. Mike concentrates his practice on complex commercial litigation includi...

Andrew O. Christianson is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Andrew O., who practices law in Milwaukee, Wisconsin, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Andrew O. is held by other top lawyers in the same geographic and legal practice area.

Zachary Flood is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Insurance and Litigation - Labor and Employment. Zachary, who practices law in Milwaukee, Wisconsin, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Zachary is held by other top lawyers in the same geographic and legal practice area.

Overview As a shareholder in Reinhart’s Corporate Law and International Practices and member of the firm’s multidisciplinary Commercial and Competition Law Group, Catherine L. Davies has an extensive business law practice focused on international and domestic transactional matters. Cathy works closely with clients on purchase and sale transactions, joint ventures, distributor and sales representative agreements and other commercial issues. Cathy is also a member of the White Colla...

Scott T. Reigle is a shareholder and serves in Meissner Tierney’s litigation practice group. He represents clients in a variety of civil litigation matters in Wisconsin, California, and other jurisdictions across the country. His litigation practice focuses on general business litigation, complex insurance coverage disputes, business torts, contract disputes, e-commerce, intellectual property, employment-related matters, banking, secured lending, real estate, regulatory compliance. Scot...

Rob Teuber is a Shareholder focusing his practice on tax disputes and controversies for clients nationally, regionally and locally. From a national perspective, Rob assists in resolving IRS tax audits, Tax Court litigation, personal liability assessments, tax collection matters, Offers in Compromise and foreign financial account disclosures. From a state and local perspective, he works with clients to address sales, employment, income and property tax controversies. Rob takes great pride in a...

Mark Schmidt is a Shareholder in the Litigation and Risk Management Practice Group and Co-Chair of the Construction Law and Litigation Section. Mark helps clients resolve their most challenging and complex problems by focusing on practical solutions and efficient business results. Mark is directly involved in all aspects of negotiation, strategic planning, risk assessment, arbitrations, mediations and court and jury trials in state and federal court. Mark’s broad experience covers all a...

Oyvind Wistrom is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Oyvind, who practices law in Milwaukee, Wisconsin, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Oyvind is held by other top lawyers in the same geographic and legal practice area.

Susan Lovern is the President and CEO of von Briesen &?Roper, s.c. and Chairs the firm’s Commercial and Business Litigation Section. She represents clients in complex business litigation and appeals in state and federal courts, as well as in pre-litigation contexts, including arbitrations and mediations. Susan’s business litigation clients include hospitals, health systems, banks, and manufacturers. She regularly handles contract, lease and warranty disputes for her clients, a...