Mark M. Leitner

Jerome M. Janzer is the CEO of Reinhart Boerner Van Deuren s.c.. He is also co-chair of the firm's Real Estate Practice and a member of the Business Law Practice. Drawing on more than 25 years of experience, Jerry counsels and represents clients in a variety of industries including real estate, financial institutions, transportation, construction, manufacturing and printing. He advises his clients on every aspect of acquiring, growing and eventually selling a business including capitalization...

Beth Kushner is a Shareholder in the Litigation and Risk Management Practice Group. She specializes in complex litigation and has successfully handled a broad range of business and commercial disputes, shareholder disputes, construction matters, antitrust disputes, class actions of all sorts, fraud and RICO cases, employment cases and product liability claims. She has a particular expertise in cases that involve high exposure and difficult facts, and her clients appreciate her creative, pragm...

Nancy Bonniwell is a Shareholder focusing her practice on estate, business succession and marital property planning, estate administration and business law. She is a frequent presenter on the subjects of estate planning, business succession planning and charitable giving.

John M. Van Lieshout is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law and Litigation - Environmental. John M., who practices law in Milwaukee, Wisconsin, has been recognized since 2003. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John M. is held by other top lawyers in the same geographic and legal practice area.

Colleen E. Fielkow is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Colleen E., 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 Colleen E. is held by other top lawyers in the same geographic and legal practice area.

Jerome R. Kerkman is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law and Commercial Litigation. Jerome R., 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 Jerome R. is held by other top lawyers in the same geographic and legal practice area.

Jon Levine has a national practice focusing on representing employers in all areas of labor-management relations, including litigation before the National Labor Relations Board and in state and federal courts. He also has significant experience with: The National Labor Relations Act Union organizing campaigns Collective bargaining Labor arbitration Title VII The Americans with Disabilities Act The Age Discrimination in Employment Act The Wisconsin Fair Employment Act Jon’s notable succe...

Peter J. Faust is the President and Managing Shareholder of the law firm of O'Neil, Cannon, Hollman, DeJong & Laing S.C., a 40-attorney firm headquartered in Milwaukee, Wisconsin. Pete assists buyers, sellers, borrowers, lenders, and investors with a wide range of business law matters: including, mergers and acquisitions, formation and organization of new businesses, and contract negotiations. Pete has successfully closed hundreds of mergers and acquisitions and financing transactions inv...

Rebecca E. Greene is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. Rebecca E., 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 Rebecca E. is held by other top lawyers in the same geographic and legal practice area.

Jason leads O’Neil Cannon’s Corporate Practice Group. He advises and represents individuals, businesses, and banks on a variety of corporate, banking, and business-related issues, including mergers and acquisitions, commercial loan transactions, corporate issues, contract negotiation and preparation, and business entity selection and formation. Jason Assists Clients With Mergers and acquisitions Complex commercial loan transactions for lenders and borrowers Corporate matters, incl...