Leonard is the former chair of the firm’s Complex Commercial Litigation Department and a head of one of the firm's energy industry team sectors. His work is principally focused on commercial litigation, with cases involving energy, transactional, securities, corporate control and general corporate matters.
He has litigated actions and arbitrations on behalf of clients in more than 30 states and before several foreign arbitration tribunals, and he provides general corporate counsel to many of his business clients. As head of the energy industry’s coal sector, he coordinates the cross-departmental group of attorneys who provide integrated legal services to coal producers, coal transporters, utilities and service providers to the coal industry.
His litigation experience includes numerous cases involving the enforcement of long-term supply agreements, acquisition and divestiture agreements, the interpretation of insurance contracts providing coverage for business and industrial hazards, class action securities claims and general commercial litigation. His clients include energy producers, publicly traded manufacturers, financial institutions, communications providers and corporate holding companies, as well as large family and trust-owned entities.
He has litigated and arbitrated numerous disputes over major supply agreements for utilities and coal and oil and gas producers, and he is one of a small group of attorneys nationwide who regularly arbitrate high-stakes fuel price redetermination proceedings. In the area of mergers and acquisitions, he has frequently represented clients in disputes arising from the purchase and sale of businesses, including cases involving the enforceability of letters of intent for the sale of businesses, post-closing claims of breached representations and warranties and corporate control disputes.
Leonard is a Vice President of the American Coal Council, was appointed by the US Secretary of Energy to sit on the National Coal Council that advises him on coal policy matters, has served on the advisory board of the Little Sisters of the Poor for over 20 years, acts as a hearing officer for attorney discipline cases in Pennsylvania and the District of Columbia, and serves as a screener for the National Innocence Project.
Secured the dismissal of a class action seeking 100’s of millions of dollars for electricity ratepayers in Alabama from a client that was forced to terminate two major coal supply agreements due to events of force majeure.
Regularly represents parties to long term fuel supply agreements in complex price redetermination proceedings involving tens of millions of dollars.
Arbitrated to final award that a utility had breached a coal supply agreement by refusing to purchase more than $80 million in fuel.
Secured partial summary judgment in favor of an insured that its policies provided $320 million in nuclear hazard liability coverage rather than the $40 million in coverage the insurer claimed.
Secured the appellate affirmance of the dismissal of multi-million dollar class action claims of unfair pricing of electricity by a retail energy supplier.
Defended a multimillion-dollar securities fraud class action claim against a publicly held finance company for alleged financial misrepresentations to its stockholders until settlement on favorable terms.
Secured the complete dismissal of a municipality's multimillion-dollar RICO claim against a national waste disposal company.
Represented gas producer in securing the dismissal of class action suit seeking to invalidate 1000’s of highly valuable oil and gas leases, and successfully defended the decision on appeal to the Sixth Circuit.
Trial counsel for a steel manufacturer's business interruption claim against an insurer to jury verdict for more than $1 million.
Represented the purchaser in its malpractice claim against the selling company’s accounting firm alleging misrepresentation of financial condition of acquired company, and settled the case during trial for the policy limits.
Secured the dismissal of a contract claim by a former employee for a one-third interest in a multimillion-dollar Russian business, and successfully defended the decision on appeal to the Sixth Circuit.
Defense of a department store's $100+ million claim against a national retailer and shopping mall developer for terminating an agreement to purchase the chain. Settled on favorable terms.
Appointed by the U.S. Secretary of Energy to the National Coal Council, which advises him on coal policy matters.
Named an "Energy and Environmental Trailblazer," National Law Journal, 2016
Recipient of Pittsburgh Business Times’ Energy Leadership Award in the Coal category, 2015
Named to Pittsburgh Business Times’ Who’s Who in Energy list, 2014, 2016
Named "Lawyer of the Year," Litigation – Real Estate, Pittsburgh, Best Lawyers in America, Woodward/White, Inc., 2016
Selected for inclusion in The Best Lawyers in America, Commercial Litigation, Litigation - Banking & Finance, Litigation - Environmental; Litigation - Mergers & Acquisitions; Litigation - Real Estate, Woodward/White, Inc., 2007-2020
Named to “Pennsylvania Super Lawyers,” Business Litigation, Energy and Natural Resources, Super Lawyers, Thomson Reuters, 2011-2018
Hearing Committee Member, Serving Disciplinary Board, Supreme Court of Pennsylvania
Member, National Coal Council
Member, Board of Directors, American Coal Council
Advisory Board, Little Sisters of the Poor, 20+ years
Energy Secretary Appoints McGuireWoods’ Len Marsico to DOE’s National Coal Council
August 28, 2017
McGuireWoods’ Marsico and Rappold Named NLJ ‘Energy and Environmental Trailblazers’
May 23, 2016
American Coal Council Board of Directors Elects McGuireWoods Partner Leonard Marsico Vice President
January 21, 2016