Panagiotis Tzioumas

I have devoted nearly my entire professional career to government contracts. After graduating from the United States Air Force Academy and SMU Dedman School of Law, I served as a government contracts lawyer in the Air Force, acting as procurement counsel, legal advisor to Inspector General investigations involving procurement matters, and a member of the Air Force Contract Litigation Team. Those assignments allowed me to see federal contracting from the perspectives of the contracting officer...

Pete Duchesneau’s practice focuses on most aspects of environmental law involving litigation, administrative proceedings, regulatory compliance and business transactions. He handles complex environmental litigation in federal and state courts, including CERCLA, RCRA, Clean Water Act, products liability, toxic tort, and Proposition 65 actions, among others. Pete has significant experience with emerging chemicals and drinking water contamination. In addition to litigation, Pete counsels c...

Alicia is an experienced litigator who represents clients in all areas of commercial and civil litigation, including complex contract disputes , corporate dissolution proceedings and business divorces , shareholder derivative actions, employment disputes, premises liability, insurance coverage matters , and others. Alicia also defends small and mid-sized businesses in lawsuits filed under the Americans with Disabilities Act. In her more than a decade of private practice, Alicia has been a pro...

Kenneth ("Ken") Januszewski practices in all areas of Construction-related and General Liability litigation and serves as the CD-GL Practice Group Chair for Nevada and New Mexico claims. He has served as lead counsel for construction industry clients in multi-million dollar residential and commercial litigation matters for clients including numerous developers, general contractors and subcontractors in complex litigation matters. Ken has for years provided coverage analysis for multiple carri...

Suzanne R. Walker is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Defendants. Suzanne R., who practices law in Raleigh, North Carolina, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Suzanne R. is held by other top lawyers in the same geographic and legal practice area.

Mark E. Bishop is board certified in commercial real estate law by the Texas Board of Legal Specialization. His experience includes the negotiation, due diligence review, documentation and closing of sophisticated real estate transactions, including the acquisition and disposition of office buildings, hotels, commercial tracts, ranch land and multi-family properties. Mr. Bishop also has represented a national retailer in multi-state land acquisitions and development work; negotiated and close...

With a distinctive background and a rare competitive fire, David Roop has for more than a decade been one of Virginia's top family law attorneys. According to his peers, Roop is both a sophisticated thinker and a scrappy lawyer, a unique and useful mix for his contentious profession. David has a deeply strategic orientation along with a cheerful yet hard-driving disposition. David is a Baltimore native and graduate of Notre Dame University, Notre Dame, Indiana (BA, cum laude, 1985) and the Un...

Robert Walthall is a partner in the Corporate Practice Group. He counsels clients on a broad range of federal tax and related matters. Robert provides tax-planning advice to individuals and businesses, represents clients in administrative and judicial tax controversies at the state and federal levels, including the US Tax Court and other federal and Alabama courts, and represents clients in civil and criminal tax defense. He also counsels clients with respect to organizing and tax planning fo...

Tawnia R. Wienke is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Tawnia R., who practices law in Tempe, Arizona, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tawnia R. is held by other top lawyers in the same geographic and legal practice area.

Lonnie J. Williams, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Employment Law - Management. Lonnie J., who practices law in Phoenix, Arizona, has been recognized since 1995. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lonnie J. is held by other top lawyers in the same geographic and legal practice area.