E-mail: mcleaves@kv-legal.com
Phone: (804) 823-4035 
Fax: (804) 823-4099

Mark’s experience representing businesses is wide ranging, including corporate finance/business formation, mergers and acquisitions, securities law, taxation, general corporate and commercial law, private offerings, tax, trade secrets, and strategic partnerships/joint ventures.

Mark began his postgraduate legal career as counsel to the U.S. Securities and Exchange Commission in the Division of Corporation Finance. He was responsible for the primary legal services of domestic and international corporate financings associated with public/private securities offerings, changes in control, complex recapitalizations, tender and exchange offers, and “roll-up” transactions.

After leaving the SEC in 1991, Mark joined the legal team at Columbia Energy Group, Inc. (a large multinational, vertically integrated energy company). He was responsible for the legal work associated with corporate finance and commercial transactions, including international and domestic acquisitions/divestitures; public offerings and private placements of common stock and debt securities; and negotiation of trust indentures, credit facilities and other financing documents.

In 1991, Mark became a principal at Columbia Energy Ventures, where he was responsible for merger and acquisition advisory services for Columbia Energy’s nonregulated energy business. He structured, negotiated and financed dozens of acquisitions in the retail propane and oil and gas exploration and production industries, ranging in value from just under $1 million to over $250 million. During his tenure at Columbia Propane/Columbia Petroleum, these subsidiaries had a combined revenue stream of $320 million, employing about 2,000 employees. At the time of its sale, Columbia Propane was the fourth-largest liquid propane company in the U.S.

Georgetown University, L.L.M. Securities Law, Masters of Law Taxation, 1990
The Delaware Law School, J.D., Cum Laude, 1987
Northeastern University, B.S. Toxicology, 1983
Northeastern University, M.S. Pharmacology/Toxicology, 1987

Virginia State Bar
Delaware State Bar
District of Columbia Bar
U.S. Court of Appeals 3rd Circuit
U.S. Court of Appeals 4th Circuit
U.S. Court of Appeals, Federal Circuit
U.S. District Court (DE)
U.S. District Court (DC)
U.S. Supreme Court
U.S. Tax Court

Professional Affiliations
American Bar Association

  • Corporation Banking and Business Section
  • Committee on Federal Securities
    • subcommittee on Proxy and Tender Offer Regulation
  • Natural Resource Law
  • Science and Technology Law

Virginia State Bar Association

  • General Corporation and Commercial Law Section

Delaware State Bar Association

  • General Corporation and Commercial Law Section

Massachusetts State Bar Association

  • General Corporation and Commercial Law Section

District of Columbia Bar Association

  • General Corporation and Commercial Law Section