David W. Wilhelmsen

Kelly L. Mendoza is a lawyer recognized by Best Lawyers in the practice areas of Family Law and Family Law Mediation. Kelly L. practices law in Phoenix, Arizona Best Lawyers has recognized Kelly L. Mendoza 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 Kelly L. Mendoza is held by other lawyers.

Larry began his legal career as a litigation attorney working on complex litigation cases and has narrowed his practice to only represent family law clients. While practicing in Chicago and before becoming a partner at Jaburg|Wilk, he worked with one of the largest law firms in the nation that was exclusive to family law representation. Larry has regularly worked on several high profile celebrity dissolutions and cases with multi-millions at stake. Dissolution matters and post-decree proceedi...

Marcia Busching’s legal practice is primarily devoted to arbitration, real estate, construction, and complex business matters, with significant experience in construction and commercial arbitration. With service on American Arbitration Association (AAA) panels spanning three decades, including international arbitration, Marcia is in demand for a wide variety of very significant construction and business disputes as well as consumer and smaller disputes. Presently, she is a member of the...

Timothy J. Casey is a lawyer recognized by Best Lawyers in the practice areas of Commercial Litigation, Personal Injury Litigation - Plaintiffs, Product Liability Litigation - Plaintiffs and Professional Malpractice Law - Plaintiffs. Timothy J. practices law in Phoenix, Arizona Best Lawyers has recognized Timothy J. Casey since 2023. 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 prof...

Lee practices environmental law relating to water quality, water rights, environmental compliance auditing, solid and hazardous waste, mining and mined land reclamation and remediation, toxic substances and Superfund matters. With nearly 25 years experience, Lee has a nationally-recognized water quality practice and works closely with his clients on the federal, state and local levels to develop workable strategies to promote development and expansion of both industrial and mining operations....

Roger Cohen has over 40 years’ experience as a business attorney, representing clients in both litigation and transactions. He has a deep knowledge and understanding of commercial law and the litigation process and is a forceful and effective advocate for his clients. Roger’s experience as a transactional attorney adds value in the litigation setting, as he can relate the documentation process to issues that arise in business and commercial disputes. Conversely, his knowledge and ...

Mr. Ambrose is an accomplished trial attorney, having litigated hundreds of complex personal injury and commercial matters in State and Federal Court. His practice focuses primarily on Medical Malpractice, Personal Injury, Insurance Bad Faith, Civil Rights, and Wrongful Death matters. Scott has obtained many multi-million dollar settlements on behalf of his clients. For thirty years his practice has emphasized the litigation and resolution of matters involving catastrophic injury, wrongful de...

Since the beginning of his career, Geoff has built his reputation as a lawyer’s lawyer. He serves as Osborn Maledon’s General Counsel and represents fellow attorneys in all aspects of the practice of law. For the last 30 years, his practice has split between both litigation and preventative counsel, advising on a regular basis to clients about risk management, professional liability issues, legal malpractice, bar discipline, ethics, and law practice management issues. Geoff has be...

Stuart Kimball is a lawyer recognized by Best Lawyers in the practice area of Government Relations Practice. Stuart practices law in Phoenix, Arizona Best Lawyers has recognized Stuart Kimball 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 Stuart Kimball is held by other lawyers.

Overview Eric Hiser practices in the areas of environmental, natural resources and administrative law. He regularly represents clients in manufacturing, steel, petroleum, natural gas production and transmission, mining, metal fabrication, high technology and materials industries with an emphasis on permitting, compliance planning and environmental auditing and assessment, and has served as special counsel to the Maricopa County Air Pollution Control Hearing Board. Mr. Hiser is recognized by B...