Denise Greathouse

As a member of the firm’s Banking, Receivership, and Creditors’ Rights and Litigation Practice Groups, John regularly assists both secured and unsecured creditors, including banking institutions, servicers, commercial landlords and other entities, in the enforcement, collection and workout of contracts, loans, leases, and other obligations. John has extensive courtroom experience in utilizing state and federal collection remedies, such as foreclosure, replevin, garnishment, and th...

William Keeler is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Litigation - Construction, Mass Tort Litigation / Class Actions - Defendants and Product Liability Litigation - Defendants. William, 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 William is held by other top lawyers in the same geographic and legal practice a...

Daniel Manna is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice, Commercial Litigation and Litigation - Real Estate. Daniel, 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 Daniel is held by other top lawyers in the same geographic and legal practice area.

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.

Grant Killoran is a shareholder at O’Neil Cannon and the past Chair of its Litigation Practice Group. He has significant and diverse trial experience representing clients in Wisconsin State and Federal Courts, and courts around the country, focusing on complex business, health care and employment law disputes. Grant also devotes a portion of his practice to arts and entertainment law, with an emphasis on the music industry. Grant is listed in The Best Lawyers in America in the practice ...

Mike Carlton worked as a trial attorney at the U.S. Department of Justice in Washington, D.C., representing the EPA and other government agencies. Thereafter, he worked as a senior attorney and policy analyst with the Environmental Law Institute, and then as Wisconsin counsel for a national environmental organization. Mike has taught and studied environmental law and policy in Washington, D.C., London, and the University of Wisconsin Law School. Mike heads the firm’s Environmental Law P...

Richard Orton is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Litigation - Construction, Litigation - Insurance, Personal Injury Litigation - Defendants and Product Liability Litigation - Defendants. Richard, who practices law in Milwaukee, Wisconsin, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Richard is held by other top lawyers in the same geographic and leg...

Adam J. Tutaj is a shareholder of the firm, and concentrates his practice in the areas of business, tax and health law. Since joining the firm in 1999, he has developed his practice as “general counsel” to clients in a wide range of industries, including: manufacturing, physician group practices, real estate developers, and large 501(c)(3) medical specialty organizations having national and international scope. Adam is a frequent speaker and author on the issues of tax law, health...

Ericka Hammett is a Shareholder at von Briesen & Roper, s.c. in the Insurance Coverage and Risk Management Section. She concentrates her practice on insurance coverage matters, including advising insurers on first-party property, third-party commercial general lability (CGL), professional liability and bad faith claims. She also defends insurer-clients and their insureds at the trial and appellate court level against claims for property damage, personal injury and professional liability.

John T. Reichert is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law and Financial Services Regulation Law. John T., who practices law in Milwaukee, Wisconsin, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John T. is held by other top lawyers in the same geographic and legal practice area.