Peter Lagomarsino
Sean Weathersby is a Partner in the Mintz Group’s Washington, D.C. office, where he is a member of the firm’s Executive Diligence practice. He advises clients on reputational and integrity risks related to senior leadership hires, board appointments and strategic investments. Sean’s work focuses on helping companies, investors, and law firms make confident decisions grounded in accurate, nuanced intelligence.
With over 15 years of experience in risk advisory and investigations, Sean has conducted thousands of complex background investigations across industries and jurisdictions, from pre-transaction due diligence to high-profile executive vetting. While Sean’s work has spanned broadly across industries – including healthcare, finance, energy, telecommunications and athletics – he has particular expertise in conducting diligence for clients in the academic and nonprofit sectors. Sean is recognized for his analytical rigor and sound judgment in advising clients navigating sensitive matters discreetly and effectively.
In addition to his work in executive diligence, Sean brings extensive experience supporting clients in complex disputes and investigations. He has led multifaceted assignments involving litigation support, asset tracing, and public-policy controversies, helping legal teams and corporate boards manage high-stakes matters with discretion and clarity. He is noted for his skill in navigating the sensitivities of proxy contests and governance disputes, having impeached the credibility of dozens of adverse nominees. He has also uncovered the sources of activist campaigns against high profile clients; helped the victims of Ponzi schemes recover their funds; and discredited counterparties in white collar criminal defense, class-action lawsuits and corporate civil litigation.
Sean has a BA in History from Bowdoin College and an MBA in Finance from Johns Hopkins University.