Margaret L. "Maggie" Seifert

Alan Marcuvitz is a Shareholder in the Real Estate Section. He is recognized as one of Wisconsin’s preeminent attorneys in the fields of eminent domain and real property taxation, based on his extensive experience in both trial and appellate courts. Many of his Wisconsin Supreme Court cases are cited with the following representative cases being cited frequently: Warehouse II, LLC v. State Dept. of Transp. , 2006 WI 62, 291 Wis. 2d 80, 715 N.W.2d 213 Metropolitan Holding Company vs. Boa...

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 ...

Allen C. Schlinsog, Jr. is a shareholder, chair of the firm's Litigation Practice and chair of the Product Liability and Safety Practice Group. His practice focuses on defense of the pharmaceutical and medical device industry. Al has represented drug and device companies in significant class actions, product liability and mass tort proceedings. He also regularly defends catastrophic injury cases involving a wide variety of products in highly regulated industries, including mining equipment, c...

Ashley is a shareholder focusing on civil defense litigation, handling matters at all stages - from pre-suit stage investigations and negotiations, through discovery, settlement, trial, and appeal. She has successfully defended individuals, professionals, corporations, employers, and insurers in matters involving allegations of personal injury, premises liability, product liability, and insurance coverage. Ashley is committed to providing service that produces successful results and her clien...

John K. Tokarz is a business lawyer whose practice focuses on complex transactions. As a Certified Public Accountant who previously worked as an auditor for a Big Four accounting firm, John understands his clients’ businesses. From startups to publicly traded companies, he provides a full range of transactional and strategic support to clients with matters involving mergers and acquisitions, joint ventures, divestures, securities offerings and other significant corporate transactions. I...

Michael J. Gentry is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Michael J., 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 Michael J. is held by other top lawyers in the same geographic and legal practice area.

Chad is a shareholder and member of the firm’s Business Law Practice Group. His practice focuses on working with privately held businesses and their owners, acting as corporate counsel to help them with the various legal issues they face in operating and expanding their businesses. As part of his practice, Chad has considerable experience in Mergers & Acquisitions and frequently works with businesses on ownership transition events. He prides himself on providing efficient, practical...

Grant Killoran is a shareholder at O’Neil Cannon and the Past Chair of its Litigation Practice Group. He has significant and diverse trial experience representing clients in Wisconsin State and Federal Courts, and courts around the country, focusing on complex business, health care and employment law disputes. Grant also devotes a portion of his practice to arts and entertainment law, with an emphasis on the music industry. Grant is listed in The Best Lawyers in America® in the prac...

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

Stephen E. Kravit is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Criminal Defense: White-Collar. Stephen E., who practices law in Milwaukee, Wisconsin, has been recognized since 1991. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stephen E. is held by other top lawyers in the same geographic and legal practice area.