Liberty is Of Counsel to Moses & Singer's Intellectual Property practice group. His practice covers a broad variety of technology matters, including: enterprise software development and licensing; cybersecurity and privacy law compliance; product rollouts; intellectual property protection; technology consulting; IT infrastructure and managed services; hardware and software procurement; technology support and outsourcing; and venture financing. His representation has covered finTech, edTech, healthTech, eCommerce, internet-of-things, cloud products, mobile software, enterprise SaaS, social media, audiovisual media-sharing, eDiscovery and many others.
Prior to joining the firm, Liberty was in-house counsel to a group of software startups in NYC, all of which employed Agile methodology and Test Driven Design (TDD). After working in-house, Liberty was a corporate and technology transactions associate at a New York City law firm. As a result, he has substantial experience analyzing open source components, integrating new software into enterprise environments, ensuring that software meets regulatory requirements and developing complex API, sandbox, SaaS, PaaS and VAR agreements.
Additionally, Liberty has represented clients through numerous corporate transactions, mergers and acquisitions, entity formations, governance and financing matters. He has negotiated funding rounds, credit facilities, financing transactions and company sales in industries ranging from energy production to logistics, financial services, consumer packaged goods, online publications and SaaS products, among others.
William A. Tanenbaum is ranked in top tiers by Chambers: America’s Leading Lawyers for Business and in its Global Edition, Who's Who Legal, and Best Lawyers in America in technology, outsourcing, IP, AI and Data Law and recognized for his strength in healthcare technology. He works closely with clients to bring actionable, industry-informed solutions to their business needs.
Bill has “expertise in technology transactions that puts him at the very top of the market” (Who's Who Legal) and "his technology approach and understanding of healthcare - his domain expertise - is a winning combination.” (Chambers) According to Chambers, Bill “brings extremely high integrity, a deep intellect, fearlessness and a practical, real-world mindset to every problem.” Bill is recognized as one of the “leading names” in AI and as a “go-to expert [on] data.” (Who's Who Legal/Global Data Review) He was named as the “Lawyer of the Year” in IT in New York in 2013 by US News & World Report and one of the Top 30 IT lawyers in the U.S. (Best of the Best/Expert Legal Guide), and as one of the “IAM Strategy 300 - The World's Leading IP Strategists,” as an “IP Star” and as a “Life Sciences Star.” (Managing IP;LMG Life Sciences) Bill was President of the International Technology Association and is the Contributing Editor of the International Comparative Legal Guide toDigital Health 2020.
Chambers also finds that Bill has a “solid national reputation,” “is a “prominent figure in technology and outsourcing,” “provides savvy representation,” and “uses his expertise to help [clients] successfully navigate negotiations.” Bill also “has strong litigation experience” with patent victories in the Court of Appeals for the Federal Circuit (Who's Who Legal). He was appointed by peer review to the “List of the World’s Leading Neutrals [Arbitrators]” and is Board Member of the Silicon Valley Arbitration and Mediation Center. He is also a past Vice President of the Society for Information Management, an industry CIO association (New York Chapter).
Prior to joining Moses & Singer, Bill was the Chair of IP and Technology Transactions at a Wall Street firm, a partner in an international IP firm, and the Practice Co-Chair of Healthcare Technology Transactions at an Am Law 100 firm.