Kathleen Elder

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 ...

Meghan heads the firm’s Energy, Water, and Utility Law practice and is a renowned industry leader in the electric, renewable energy, natural gas, water, telecommunications, and other innovative technologies sectors. Her clients value the unique blend of her legal acumen with the substantive utility business knowledge that she developed serving for years as both Associate General Counsel of Regulatory and then as head of the revenue requirement and rate design departments for Arizona&rsq...

Robert S. Kant has represented numerous large and small issuers of equity and debt securities in hundreds of securities transactions involving the sale of more than $20 billion of securities through virtually every major investment banking firm in the United States. He regularly represents national, regional and local investment banking firms, as well as a variety of investment banking, private equity and venture funds. He also serves as a director or member of advisory boards to public and p...

Leonard Aragon is a lawyer recognized by Best Lawyers in the practice areas of Mass Tort Litigation / Class Actions - Plaintiffs and Personal Injury Litigation - Plaintiffs. Leonard practices law in Phoenix, Arizona Best Lawyers has recognized Leonard Aragon 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 Leonard Aragon is held by other lawyers.

A senior partner and Best Lawyers® honoree, Jonathon Morrison’s practice is focused on tax, business and estate planning for clients with large or complex estates. He is licensed in both Arizona and California and is a Certified Specialist in Estate Planning, Trust and Probate Law in California. After a decade practicing with preeminent estate planning law firms in Silicon Valley, Jonathon gained a mastery of virtually every estate and tax planning strategy in existence. With his un...

Clark L. Derrick began his legal career in Phoenix in 1972 after having graduated, with distinction, from the University of Arizona, College of Law and entering into the practice with John J. Flynn and the firm of Flynn, Kimerer, Thinnes & Derrick. While a student at the University of Arizona, College of Law, Clark was Symposium Editor of the Arizona Law Review and was elected a member of the Order of the Coif. He received his undergraduate, Bachelor of Arts degree in 1968 from the Univer...

Thomas C. Wilmer is a lawyer recognized by Best Lawyers in the practice area of Workers' Compensation Law - Claimants. Thomas C. practices law in Phoenix, Arizona Best Lawyers has recognized Thomas C. Wilmer since 2009. 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 Thomas C. Wilmer is held by other lawyers.

John B. Weldon, Jr. is a lawyer recognized by Best Lawyers in the practice areas of Environmental Law, Native American Law, Natural Resources Law and Water Law. John B. practices law in Phoenix, Arizona Best Lawyers has recognized John B. Weldon, Jr. since 1993. 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 John B. Weldon, Jr. is held by other lawyers.

Colin was appointed a Judge of the Maricopa County Superior Court in 1990 after twelve years of practicing both civil and criminal trial law. During his 17 years as a Judge, he sat on assignments related to nearly every area of law including civil, criminal, juvenile, and family matters. He was Presiding Judge from 2000 to 2005. After his retirement from the Bench, Colin returned to Osborn Maledon in 2007 where he maintains an active personal injury tort, commercial litigation, and public law...

Stephen E. Richman practices in all phases of Construction Law, commercial and residential. He is a past chair of the Construction Law Section of the State Bar and is a member of the ABA Forum on the Construction Industry. He is also active in the Arizona Builders Alliance, where he is a member of the Legislative Review Committee and the Legal Advisory Council. Mr. Richman is also a member of the Construction Law Attorney Forum of the National Association of Home Builders and a Charter Fellow...