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 varied practice that centers on commercial real estate and development (zoning and land use, real estate, environmental law), public utilities and infrastructure and public agency and local government law in Virginia, Maryland and the District of Columbia.

Throughout his commercial real estate and development practice, Mark provides extensive services to clients throughout the region who have encountered growth management and increasingly complex legislative and regulatory issues during all phases of the development 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 and mixed-use projects, as well as industrial property owners, golf course developers, 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.

Through his public utility and infrastructure practice, Mark represents major water and sewer authorities, natural gas and petroleum pipeline operators as well as traditional and renewable (solar, off-shore wind and geothermal) power providers on matters ranging from general counsel work to the development and repositioning of utility facilities. He also assists clients with public- private partnerships on projects involving the development and operation of toll roads/ transportation infrastructure and affordable housing projects.

Through his public agency and local government law practice, Mark has assisted numerous public agency and local government clients, including two interstate compact commissions 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, state of Maryland, 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.

Mark acts as Mid-Atlantic regional counsel for several national retail and institutional client and devotes a significant amount of time leading and assisting various community, civic, charitable, business and professional organizations.

Prior to becoming a lawyer, Mark served as a 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 McGuire Woods 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

Mount Vernon-Lee Chamber of Commerce, Board of Directors, 2021

Education Committee, National Association of Industrial and Office Properties

Regional Land Use Leadership Class, Urban Land Institute

Trends Conference Committee, Urban Land Institute

Education Committee, International Conference of Shopping Centers

Member and Former Chair, State and Local Government Selection Council, Maryland State Bar Association DC Bar Association

Virginia State Bar

President, Southeast Fairfax Development Corporation

Former Co-Chair, Mount Vernon Council of Community Associations

Pro Bono Counsel, Children's Science Center

Member - Virginia Local Government Attorneys Association

Member - Virginia Water and Wastewater Authorities Association

Member - 1st Cavalry Division Association

Member - Transportation Committee, Economic Development Committee, The Federal City Council

Transportation and Economic Development Committee, Greater Washington Board of Trade (former)

Sponsor and Member - Northern Virginia Building Industry Association

Maryland-National Capital Builders Industry Association

Member - Lee-Mount Vernon Soccer Association

Gunston Soccer Association

Fort Hunt Youth Athletic Association