Specializing in corporate finance and mergers and acquisitions, Jack has represented buyers, sellers, issuers, underwriters and investors in hundreds of transactions over his more than 35 years of practice. He has represented public and private clients in all types of transactions including IPOs, public and private domestic and cross-border offerings and public and private acquisitions in a wide range of industries including business services, consumer products, technology, life sciences, chemical, renewables, media and natural resources.

Jack has been listed in both the securities law and corporate law categories in The Best Lawyers in America since 2007, and Martindale-Hubbell has rated him a Top Technology Lawyer and awarded him the Peer Rating for Highest Level of Professional Excellence. Often quoted in legal publications, he frequently publishes articles and speaks on corporate finance issues.