University of Maryland School of Law, J.D., 1995

Purdue University, B.A., 1988

Bar & Court Admissions

  • Virginia, 1996
  • District of Columbia, 1996
  • Maryland, 1995
  • U.S. Court of Appeals for the Fourth Circuit, 1996
  • U.S. District Court for the District of Maryland, 1996
  • U.S. District Court for the Eastern District of Virginia, 1996
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Mark Viani is a shareholder with a practice that centers on 1) commercial real estate and development; 2) utilities and infrastructure; and 3) public agency and local government law, in Virginia, Maryland, and the District of Columbia.

In his real estate and development practice, Mark provides extensive services to clients throughout the region who have encountered increasingly complex political, legislative, and regulatory issues during all phases of the development and repositioning process. He also assists clients with complex transactional matters, construction contracting and environmental compliance. In this regard, he has represented local, regional, and national developers on retail, office, residential, industrial/warehouse and mixed-use projects, as well as institutional property owners, golf course operators, nonprofit and religious organizations, financial institutions, affordable housing providers and major medical institutions. He is a LEED Accredited Professional with knowledge of the law as it relates to the design, construction, and operation of green buildings.

In his utility and infrastructure practice, Mark represents major water and sewer authorities, natural gas, and petroleum pipeline operators as well as traditional and green/renewable power providers (solar, offshore wind, and geothermal) on the development, repositioning and acquisition of infrastructure. He also assists clients with public-private partnerships on projects involving the development and operation of toll roads/transportation infrastructure, specialized governmental facilities and affordable housing projects.

In his public agency and local government law practice, Mark assists numerous public clients, including two interstate compact commissions, specialized authorities, a major regional transportation authority and a major urban business improvement district on a variety of legal matters in federal and state courts, administrative proceedings, and legislative matters. Mark serves as the general counsel for the Prince William County Service Authority. Working with the Metropolitan Washington Council of Governments, he assisted the Commonwealth of Virginia, the State of Maryland, and the District of Columbia with the formation and establishment of the Metro Safety Commission. He is a member of the Virginia Local Government Attorney's Association and Former Chair of the State and Local Government Section Council of the Maryland Bar Association.

Lastly, Mark acts as regional general counsel for several national retail and institutional clients on a wide variety of general commercial, regulatory and labor and employment matters. 

He devotes a significant amount of time leading and assisting various civic, charitable, and professional organizations, including acting as pro-bono counsel to the Children’s Science Museum of Virginia and the National Museum of the United States Army. Prior to becoming a lawyer, Mark served as an officer in the 1st Cavalry Division of the U.S. Army in Texas and the Persian Gulf region. He was also previously a partner at the international law firm McGuireWoods LLP and an associate at Linowes and Blocher LLP.


Virginia Business Legal Elite in Real Estate/Land Use, 2019-2020

Arlington Magazine, Top Attorney - Land Use/Zoning, 2019

Published Articles

Speaking Engagements

Blog Posts

Professional & Community Affiliations

Urban Land Institute (ULI)

  • Inaugural Regional Land Use Leadership Class
  • Trends Conference Committee

International Conference of Shopping Centers (ICSC)

  • ICSC Mid-Atlantic Education Committee

National Association of Industrial and Office Properties (NAIOP)

  • Education Committee
  • Government Relations Committee

Northern Virginia Building Industry Association (NVBIA)

Southeast Fairfax Development Corporation (SFDC)

  • President of Board of Directors
  • Economic Development Committee (former chair)

Mount Vernon-Lee Chamber of Commerce (MVLCC)

  • Board of Directors
  • Economic Development Committee (Co-chair)

Mount Vernon Council of Community Associations (MVCCA)

  • Co-chair (former)
  • Planning & Zoning Committee Chair (former)

Virginia Local Government Attorneys Association (LGA)

Virginia Water and Wastewater Authorities Association (VWWAA)

Fairfax County Affordable Housing Resources Panel (appointed by Fairfax County Board of Supervisors)

Fairfax County Affordable Housing Preservation Task Force (appointed by Fairfax County Board of Supervisors)

Association of the United States Army (AUSA)

Army Historical Association

1st Cavalry Division Association

The Federal City Council (former)

  • Transportation Committee
  • Economic Development Committee

Greater Washington Board of Trade (former)

  • Transportation and Economic Development Committee

Maryland State Bar Association DC Bar Association

  • Former Chair, State and Local Government Selection Council

Virginia State Bar

District of Columbia Bar

Lee-Mount Vernon Soccer Association

Gunston Soccer Association

Fort Hunt Youth Athletic Association