Jerome A. Hierseman

Margaret T. Lund is a lawyer recognized by Best Lawyers in the practice areas of Business Organizations (including LLCs and Partnerships) and Closely Held Companies and Family Businesses Law. Margaret T. practices law in Milwaukee, Wisconsin Best Lawyers has recognized Margaret T. Lund since 2016. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Margaret T. ...

Zachary J. Davis is a lawyer recognized by Best Lawyers in the practice areas of Litigation - Insurance and Product Liability Litigation - Defendants. Zachary J. practices law in Milwaukee, Wisconsin Best Lawyers has recognized Zachary J. Davis since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Zachary J. Davis is held by other lawyers.

Nate Johnson is a Shareholder and Co-Chair of the General Litigation Section. His practice focuses on insurance defense claims, product liability, toxic tort, strategic risk and crisis management. Nate has successfully tried numerous cases to verdict throughout Wisconsin. Nate has significant experience litigating cases in the following areas: Products liability Insurance coverage Business/Commercial disputes Construction Personal injury Wrongful Death Premise liability Professional liability

Ken Hoogstra maintains an extensive employee benefits practice, advising clients on such matters as ERISA compliance for group health, welfare and pension plans, and the design and administration of qualified retirement plans and nonqualified deferred compensation plans. Ken places a particular focus on the implementation, design and administration of employee stock ownership plans (“ESOPs”). He also has significant experience working on executive compensation arrangements, includ...

Mary is a shareholder with Crivello, Nichols and Hall, S.C. and is a member of the firm’s Board of Directors. For over 35 years, Mary has defended lawsuits in state and federal courts in Wisconsin, and has extensive experience consulting with and representing private and municipal employers in state and federal matters before the Equal Rights Division and Equal Employment Opportunity Commission. She consults with and advises clients on matters regarding personnel policies, practices and...

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...

Linda Meagher is a lawyer recognized by Best Lawyers in the practice areas of Litigation - Health Care and Litigation - Insurance. Linda practices law in Milwaukee, Wisconsin Best Lawyers has recognized Linda Meagher since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Linda Meagher is held by other lawyers.

Karen is a veteran litigator and legal advisor with more than 30 years of experience representing businesses, individuals, fiduciaries and government entities, both in and out of the courtroom, in complex civil matters. She focuses her practice on a variety of business and commercial disputes, as well as fiduciary, trust and probate controversies, in each case offering practical, client-centric solutions. Before joining O’Neil Cannon, she served as Deputy Corporation Counsel for Milwauk...

Barry White is a Shareholder in the Litigation and Risk Management Practice Group and the Co-Chair of the Fiduciary Litigation and Inheritance Disputes Section at von Briesen & Roper, s.c. Barry’s practice focuses on business litigation, with a particular emphasis on fiduciary litigation. Barry has considerable experience representing individual and institutional trustees in a wide variety of trust-related disputes, and also represents beneficiaries and heirs in undue influence and ...

Christopher J. Krawczyk is a lawyer recognized by Best Lawyers in the practice areas of Commercial Litigation and Litigation - Securities. Christopher J. practices law in Milwaukee, Wisconsin Best Lawyers has recognized Christopher J. Krawczyk since 2013. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Christopher J. Krawczyk is held by other lawyers.