Martin J. Greenberg

Dave Roettgers is a Shareholder focusing his practice on the purchase and sale of businesses, taxation, corporate finance and business law. He is a Certified Public Accountant and uses his prior experience at Arthur Andersen LLP where he provided tax planning and business advice for individual and business clients. Representative Matters and Experience Representation of families and owners in all types of business planning including the transition of the business to the next generation, finan...

David Turek is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Insurance Law, Litigation - Insurance and Personal Injury Litigation - Defendants. David, 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 David is held by other top lawyers in the same geographic and legal practice area.

Monte E. Weiss is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Insurance Law, Litigation - Insurance and Personal Injury Litigation - Defendants. Monte E., who practices law in Mequon, Wisconsin, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Monte E. is held by other top lawyers in the same geographic and legal practice area.

Andrew O. Christianson is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Andrew O., 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 Andrew O. is held by other top lawyers in the same geographic and legal practice area.

Nathan Bayer is a top attorney recognized by Best Lawyers in the practice area(s) of Municipal Law. Nathan, who practices law in Milwaukee, Wisconsin, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Nathan 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...

Laurence J. Fehring is the co-manager of the firm’s Milwaukee office. Larry has been certified as a Civil Trial Advocate by the National Board of Trial Advocacy since 1995, and a member of the American Board of Trial Advocates-Wisconsin Chapter since 2009. Larry’s practice involves general liability with a focus on injuries and deaths caused by motor vehicle accidents. He also handles cases involving injuries caused by pharmacy errors, contractor negligence, nursing home/elder car...

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.

Pamela J. Tillman’s practice focuses on representing a wide variety of businesses in litigation matters, primarily in the areas of complex insurance coverage issues, commercial litigation, mortgage lending disputes, employment disputes and health care liability. Whatever the issue, she believes that it is paramount to have the experience and understanding to advise clients on the possible outcomes and costs of litigation so that clients have a comprehensive viewpoint to make the strateg...

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 ...