Jonathan "Jon" Shapiro

Virginia C. Haizlip is a top attorney recognized by Best Lawyers in the practice area(s) of Collaborative Law: Family Law, Elder Law, Family Law, Family Law Mediation, Litigation - Trusts and Estates and Trusts and Estates. Virginia C., who practices law in Fairfax, Virginia, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Virginia C. is held by other top lawyers in the same geographic and legal practice area.

Joseph L. Barloon is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar and Financial Services Regulation Law. Joseph L., who practices law in Washington, District of Columbia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joseph L. is held by other top lawyers in the same geographic and legal practice area.

Brian has been an energy regulatory practitioner for more than two decades, with a focus on Federal Energy Regulatory Commission (FERC) regulation under Part II of the Federal Power Act (FPA), the Public Utility Regulatory Policies Act of 1978, and the Public Utility Holding Company Act of 2005. Brian’s legal experience extends to almost all aspects of federal regulation of the electric industry, including cost-of-service and market-based rates, open access transmission rules and polici...

Mr. Moher has practiced law in the Commonwealth for nearly 20 years. He is an experienced trial lawyer who has litigated and/or negotiated resolutions in custody, support, and equitable distribution matters involving issues such as closely-held businesses, international child custody, child sexual abuse, imputation of income, and spousal battery. In addition to his traditional experience, Mr. Moher is also an active practitioner of collaborative law, a process by which parties sign an agreeme...

Seth Perretta advises clients on a wide range of federal tax and ERISA matters regarding employee benefits and insurance. His practice encompasses qualified retirement plans, executive compensation, federal income and employment taxes, health and welfare arrangements, and insurance. Seth represents employers, private equity and investment firms, insurance companies, professional employer organizations (“PEOs”), trade associations, and public policy organizations on all aspects of ...

Jay R. Nanavati is an accomplished litigator, a former federal tax prosecutor, and a founding partner of Kostelanetz LLP's Washington, D.C., office. He has developed an enviable record of success in persuading the government to terminate investigations of his clients and in defeating the government in court. Mr. Nanavati maintains a nationwide practice, focusing on white-collar criminal defense with an emphasis on tax-related matters. He represents individuals and entities facing investigatio...

Adrian L. Bastianelli, III is Of Counsel at Peckar & Abramson PC , based in Washington, District of Columbia. Following a lengthy career representing participants across the construction industry in claims and litigation, while also serving as an ADR neutral, he has transitioned his practice to focus exclusively on neutral services. His work includes serving as an arbitrator, mediator, dispute review board (DRB) member, and in other roles involving arbitration and mediation. Adrian previo...

Allison has advocated extensively for clients in government contracts litigation before the Boards of Contract Appeals (BCA) and the U.S. Court of Federal Claims, as well as in bid protests before the Government Accountability Office (GAO). In these processes, she places clients in the best position for successful outcomes by covering all bases and ensuring she’s diligently safeguarding their rights under specific contract clauses. Outside of dispute resolution, Allison also advises gov...

Marisa C. Terrenzi is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Marisa C., who practices law in Tysons, Virginia, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marisa C. is held by other top lawyers in the same geographic and legal practice area.

M. Kendall Day is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. M. Kendall, who practices law in Washington, District of Columbia, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which M. Kendall is held by other top lawyers in the same geographic and legal practice area.