William de Sierra-PambleyAssociateSheppard, Mullin, Richter & Hampton LLPWebsitewww.sheppardmullin.comOrganization ProfileFull ProfileConnectEmail212-896-0684 Professional Biography William de Sierra-Pambley is an associate in the Finance & Bankruptcy Practice Group in the firm's New York office. More Legal and Business Bylines From William de Sierra-Pambley The SEC’s Sudden Impact on NFTs! - (Posted On Friday, September 08, 2023) Digital Asset Policy: Aspirations, Reality and Regulation - (Posted On Thursday, August 18, 2022) Recent SEC Proposed Rulemaking Could Impact Blockchain Trading Platforms - (Posted On Friday, January 28, 2022) Current Legal Analysis AI and Social Media: An In-House View [Video] by: Matthew Kirk , Tanvi Mehta Krensel DOL Issues Field Assistance Bulletin Outlining Mental Health Parity Enforcement Approach by: Gabrielle Fox , Jennifer Rigterink ITAR & AI-Enabled Defense Technologies: Autonomous Systems, Targeting Algorithms, and the New Export-Control Frontier by: Diana Friling GeTtin’ SALTy Episode 83 | New York City’s Pied-a-Terre Tax: Rollout Challenges, Constitutional Questions, and a Growing National Trend [Podcast] by: Nikki E. Dobay , Glenn Newman Talent Risk Assessor, 5: Performance Ratings as the Foundation [Podcast] by: T. Scott Kelly , Cameron W. Ellis Beltway Buzz, September 11, 2026 by: James J. Plunkett New York State Mandates Employee Access to Personnel Records by: Evandro C Gigante , Laura M. Fant New York Employers May Soon Face New Separation Agreement Procedural Requirements by: Evandro C Gigante , Laura M. Fant IEEPA Tariff Refunds: Critical Developments, Phase III Delays, and Action Steps for Importers by: David M. Spooner , Linda M. Weinberg Maryland Amends Franchise Law — Changes Effective October 1, 2026 by: Peter Lawrence Loh Patent Settlements Can Reshape the Damages Available in Future Infringement Cases by: Charles Gideon Korrell Venezuela's Return to the Global Energy Market- What Recent U.S. and Venezuelan Energy Agreements May Mean for the Oil and Gas Industry by: Eric Blumrosen , Charles E. Meacham U.S. Suppressor Makers Get a Louder Voice in Global Markets by: Eric J. Stocking , J. Allen Sullivan Jr. SEC and FDA Sign Memorandum of Understanding Formalizing Cross-Agency Information Sharing by: Seth Mailhot , Paul W. Kisslinger California AI Toy Bill Brings Software Behavior Into Product Safety by: Scott S. Humphreys , J. Matthew Thornton Upcoming Events Sep 14-16 2026 Private Wealth Management Summit by Marcus Evans Sep 17-18 2026 Chief Litigation Officer Summit by Marcus Evans Sep 17-18 2026 IP Law Summit by Marcus Evans Sep 29 2026 Unearthing Coverage: Building Coverage Strategies for Environmental Liability Claims Print