Erik Eisenmann

Timothy J. Kamke is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. Timothy J., who practices law in Milwaukee, Wisconsin, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Timothy J. is held by other top lawyers in the same geographic and legal practice area.

David J. Sisson is a shareholder in the firm’s Litigation and Labor and Employment Practices. David solves problems that arise when critical personal business relationships end. These include disputes involving departing key employees and shareholders in closely held corporations and others who owe fiduciary duties. Controversies often develop at the conclusion of these relationships regarding what may be owned by, or owed to, the respective parties. A departing employee may try to esta...

Mark Schmidt is a Shareholder in the Litigation and Risk Management Practice Group and Co-Chair of the Construction Law and Litigation Section. Mark helps clients resolve their most challenging and complex problems by focusing on practical solutions and efficient business results. Mark is directly involved in all aspects of negotiation, strategic planning, risk assessment, arbitrations, mediations and court and jury trials in state and federal court. Mark’s broad experience covers all a...

Colleen E. Fielkow is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Colleen E., who practices law in Milwaukee, Wisconsin, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Colleen E. is held by other top lawyers in the same geographic and legal practice area.

Andrew Christman is a Shareholder in the Litigation and Risk Management Practice Group at von Briesen & Roper, s.c. He has extensive litigation experience involving matters in numerous state and federal courts across the country. He focuses his practice on toxic tort, product liability, premises liability, and insurance litigation. Andrew also has experience in construction litigation, professional liability, and appellate litigation. Andrew helps clients develop, maintain and implement d...

Nick G. Kotsonis has been a shareholder with the firm since 1999 and was appointed to the Board of Directors as of January 1, 2014. His practice areas include employment litigation/worker’s compensation, business and commercial litigation, insurance coverage litigation, personal injury, premises liability, environmental/toxic tort claims and risk management.

Jamie Barwin is a Shareholder in the Trusts & Estates Section at von Briesen & Roper, s.c. She focuses her practice on estate planning, probate and estate administration, business and corporate planning, special needs planning and tax. Jamie is also a licensed CPA in both Wisconsin and Michigan with six years of experience at Big 4 Accounting. Jamie delivers comprehensive estate planning services to families and businesses. Jamie helps her clients customize and understand their person...

Ryan P. Morrison is a top attorney recognized by Best Lawyers in the practice area(s) of Mergers and Acquisitions Law. Ryan P., who practices law in Milwaukee, Wisconsin, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ryan P. is held by other top lawyers in the same geographic and legal practice area.

Randy Nelson is a Shareholder focusing his practice on estate planning, advising family businesses, tax planning, trust administration and probate. He is a Certified Public Accountant and was an Adjunct Professor at Marquette University Law School where he taught estate planning for over 30 years. He is a frequent speaker at continuing education courses for lawyers and CPAs on the subjects of estate planning and tax planning. He is the author of the chapter “Estate Planning for Owners o...

Robert J. Heath is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. Robert J., who practices law in Milwaukee, Wisconsin, has been recognized since 2003. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Robert J. is held by other top lawyers in the same geographic and legal practice area.