Jonathan E. Sacks

Greg represents clients in the prosecution and defense of complex commercial litigation. His extensive experience in commercial litigation has prepared him to successfully represent large corporations as well as small businesses and individuals. Greg also has extensive experience representing individuals in inheritance litigation. He has successfully litigated many will contests and trust disputes throughout Wisconsin. Greg has accomplished tremendous results on behalf of trustees, personal r...

Tamar Kelber is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice and Commercial Litigation. Tamar, who practices law in Milwaukee, Wisconsin, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tamar is held by other top lawyers in the same geographic and legal practice area.

Kevin Fetherston is a Shareholder in the Litigation and Risk Management Practice Group. He focuses his practice on professional liability litigation, commercial and business litigation, insurance coverage, and general tort litigation. Kevin has extensive experience litigating complex cases and appeals in both state and federal courts.

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...

Joseph Gumina is a shareholder at O’Neil Cannon and the Past Chair of O’Neil Cannon’s Labor & Employment Practice Group. Joe is licensed to practice law in the states of Illinois and Wisconsin. Joe has extensive experience representing management in a vast array of employment matters ranging from traditional labor matters involving labor negotiations and unfair labor practice charges to helping employers navigate the complexities of state and federal fair employment laws...

Bruce T. Block is a top attorney recognized by Best Lawyers in the practice area(s) of Land Use and Zoning Law and Real Estate Law. Bruce T., who practices law in Milwaukee, Wisconsin, has been recognized since 1993. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Bruce T. 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...

Adam R. Konrad is a shareholder in Reinhart’s Corporate Law, International and Tax groups with a practice primarily focused on mergers, acquisitions, and joint ventures; however, Adam also regularly provides guidance on commercial contracting and corporate / “outside general counsel” type matters. Adam devotes a significant part of his practice to advising German businesses in connection with their investment or expansion of operations in the United States. He speaks, reads,...

Jim’s practice focuses on representing privately held businesses and their owners on the wide variety of legal matters that may arise. This includes extensive experience with significant corporate transactions such as purchases and sales of businesses, complex contractual matters, and planning for business succession. In his practice, Jim works with clients across a wide range of industries, including fintech, manufacturing, distribution, and professional services. Jim has a unique pers...

John Sikora is a Shareholder representing clients in tax planning, tax controversies and the buying and selling of businesses and real estate with a particular focus on corporate, partnership and other business matters. John is an adjunct professor of law at Marquette University Law School, where he has taught the tax practice and procedure and corporate income tax courses. John has also taught the taxation of partnerships and S corporations course to graduate accounting degree candidates at ...