Matthew R. "Matt" McClean

JB leads O’Neil Cannon’s Business Law Practice Group and is a United States Air Force Veteran. He works with and advises clients on a wide range of business law matters, including form of entity selection and initial capitalization, raising funds through private equity offerings, securities compliance and broker/dealer matters, mergers and acquisitions, contract preparation and negotiation, and software, technology, and IP matters. JB Assists Clients With Mergers, acquisitions, an...

Nick Castronovo is a Shareholder in the Litigation and Risk Management Practice Group. His practice focuses on commercial and business litigation including breach of contract disputes, shareholder disputes, business torts including breach of fiduciary duty and misrepresentation claims, class actions, construction defect claims, premises liability claims, manufacturers’ representatives matters including commission disputes, trust litigation, OSHA citation defense, and general risk manage...

Doris Brosnan is a Shareholder in the firm’s Labor and Employment Law Section, and focuses on assisting clients with employment issues. Doris regularly advises health care and corporate clients on dealing with disloyal or difficult employees, accommodating disabilities in the workplace, harassment, workplace violence, FMLA, and the development of effective employment policies and practices. She regularly assists clients in preparing and implementing employee transition plans, including ...

Julie Malloy is a lawyer recognized by Best Lawyers in the practice areas of Commercial Litigation, Corporate Law and Insurance Law. Julie practices law in Milwaukee, Wisconsin Best Lawyers has recognized Julie Malloy 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 Julie Malloy is held by other lawyers.

John is a member of the firm’s Real Estate, Land Use and Construction Law Practice Group and Business Law Practice Group. He counsels his clients in all areas of real estate development, construction law, and commercial and construction financing: including, property acquisitions and dispositions; commercial, retail, and office leasing; zoning; and land use law; and creditors’ rights. He provides both preventive and remedial legal counsel to financial institutions, real estate dev...

Thadd J. Llaurado is a lawyer recognized by Best Lawyers in the practice area of Personal Injury Litigation - Plaintiffs. Thadd J. practices law in Waukesha, Wisconsin Best Lawyers has recognized Thadd J. Llaurado since 2018. 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 Thadd J. Llaurado is held by other lawyers.

Benjamin S. Wagner is a shareholder at the firm and has been a member of the firm since 2003. He graduated magna cum laude from the University of Wisconsin Law School in 2003 and also received the Phillips Owens Memorial Scholarship for outstanding academic achievement and community service. Mr. Wagner has successfully tried numerous cases throughout southeastern Wisconsin. Due to his significant trial experience and success, he has been certified as a Civil Trial Specialist by the National B...

Philip Tallmadge is a lawyer recognized by Best Lawyers in the practice areas of Litigation - Insurance, Personal Injury Litigation - Defendants and Product Liability Litigation - Defendants. Philip practices law in Milwaukee, Wisconsin Best Lawyers has recognized Philip Tallmadge 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 Philip Tallmadge ...

Andrew Wier is a lawyer recognized by Best Lawyers in the practice areas of Appellate Practice and Personal Injury Litigation - Plaintiffs. Andrew practices law in Kenosha, Wisconsin Best Lawyers has recognized Andrew Wier since 2024. 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 Andrew Wier is held by other lawyers.

Suzanne Fischer-Lorenz is a Family Law attorney with Karp & Iancu SC in Waukesha, Wisconsin. She is known for her thoughtful approach to resolving complex and emotionally charged legal matters, helping clients navigate difficult transitions with clarity, preparation, and practical guidance. From an early age, Suzanne demonstrated a natural ability to advocate for others and communicate effectively during disagreements. Over the course of her legal career, she has developed a reputation fo...