Martin J. Greenberg

Patrick represents his clients in the prosecution and defense of many types of civil litigation matters, primarily in the areas of commercial and business litigation, torts, and complex defense litigation. He also has significant experience advising clients in the area of insurance coverage and the defense of professional claims. His extensive experience in commercial litigation has permitted him to successfully represent large multinational corporations in both state and federal courts acros...

Janet Cain is a Shareholder in the firm’s Litigation and Risk Management Practice Group. Her practice focuses on insurance coverage disputes, civil litigation and appellate representation.

Kevin J. Howley is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law, International Trade and Finance Law and Mergers and Acquisitions Law. Kevin J., who practices law in Milwaukee, Wisconsin, has been recognized since 2009. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kevin J. is held by other top lawyers in the same geographic and legal practice area.

Dave Cisar Co-Chairs the Banking and Commercial Finance Section. He draws on his 35 years of experience to counsel businesses on governance, financing, contracting, real estate, acquisitions and strategic planning. Dave has a strong focus on the Uniform Commercial Code (“UCC”) and represents financial institutions and businesses in all aspects of commercial finance and other commercial transactions including terms and conditions of sales, commercial loan agreements, inter-creditor...

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...

Although he was born, raised, and offices in southeastern Wisconsin, Tim Trecek has earned a national reputation as a successful plaintiff’s trial lawyer. Mr. Trecek’s successes have been so noteworthy that they have been chronicled in papers throughout the United States. Mr. Trecek’s notable cases have been reported in the Boston Globe, the Washington Post, the Fort Worth Star Telegram, the Minneapolis Star Tribune, the San Francisco Chronicle and dozens of other publicatio...

Mark Malloy is a trial lawyer who represents businesses in all types of commercial litigation, primarily advising companies in the areas of insurance coverage, extra-contractual liability, and professional liability. Mark is licensed in Wisconsin, Minnesota, and Illinois, and various federal courts. He represents companies in litigation across the country. Clients contact Mark for analysis and opinions relating to complex insurance coverage issues for both personal and commercial lines. In pa...

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

Brian G. Carroll is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Brian G., who practices law in Waukesha, Wisconsin, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brian G. 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...