Claiborne (Clay) W. Porter is a co-founder of Arktouros PLLC.  Clay previously served as the Chief Legal Officer of a technology company providing risk management tools to web3.  Clay was a partner at a leading international law firm where he specialized in financial crimes compliance and defense, with a focus on cryptocurrency, payments systems, decentralized finance, and FATF compliance.  Clay was also a consultant at a leading international consulting firm where he designed and reviewed AML and economic sanctions compliance programs for cryptocurrency exchangers and payment services companies.  Clay has extensive experience conducting anti-money laundering and U.S. economic sanctions risk assessments and compliance reviews, including risk assessments for cryptocurrency exchanges, brokers-dealers, and money services businesses.  Clay’s practice includes assisting countries prepare for FATF reviews.

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Prior to his move to the private sector,  Clay held a number of supervisory roles in the United States Department of Justice's Money Laundering and Asset Recovery Section ("MLARS"), including Acting Principal Deputy Chief of MLARS and Chief of the Bank Integrity Unit.  In those roles, Clay supervised complex international investigations and prosecutions (AML, sanctions, and corruption-related prosecutions) of financial services companies, assisted DOJ and interagency policymakers in developing legislative, regulatory, and policy initiatives to combat global illicit finance, and supervised the DOJ's efforts to find and return forfeited criminal proceeds to victims of crime. Clay often worked closely with foreign law enforcement and regulators. Prior to his federal government service, Clay was an associate with two international law firms in New York City and an Assistant District Attorney in Brooklyn, New York, where he prosecuted violent crime.

Jane Khodarkovsky was General Counsel and Head of Risk & Compliance at Celo Foundation, which was founded to support the growth and development of the decentralized, open-source, mobile-first Celo platform to help build a regenerative financial system. Jane oversaw all aspects of legal, regulatory and compliance, focusing on decentralized finance (DeFi), decentralized autonomous organizations (DAOs), anti-money laundering, sanctions, securities, and corporate law in the digital technology space in the United States and abroad.

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Additionally, Jane advises private companies and projects focused on regenerative finance, sustainability, machine learning, digital identity and on-chain AML and sanctions compliance. She also serves as an expert witness in civil cases at the intersection of money laundering, financial crimes, corruption and human trafficking, and she is frequently invited to speak and train private and public sector actors on these issues.

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Prior to joining the Foundation, Jane was a Trial Attorney and Human Trafficking Finance Specialist with the U.S. Department of Justice’s Money Laundering and Asset Recovery Section (DOJ/MLARS), where she investigated and prosecuted multi-jurisdictional and international money laundering and financial crimes, including those involving virtual currency and exchanges, Bank Secrecy Act (BSA) violations, human rights, human trafficking, corporate supply chains, and child exploitation. She regularly provided subject matter expertise, guidance and training to DOJ litigating components, U.S. Attorney's Offices, and international, federal, state, and local law enforcement on issues relating to money laundering, financial crimes, forfeiture and restitution. She co-authored “Prosecuting Sex Trafficking Cases in the Wake of the Backpage Takedown and the World of Cryptocurrency,” 69 Dep't of Just. J. Fed. L. & Prac. 101 (2021), published in the Department of Justice Journal of Federal Law and Practice. Prior to DOJ, Jane investigated and prosecuted enterprise corruption, money laundering, financial crimes and public corruption cases in the New York County District Attorney’s Office and the New Jersey Attorney General’s Office. Jane earned her Juris Doctor from the University of Michigan Law School, and Bachelor in Arts from Barnard College, summa cum laude.

Matt McGuire is a Partner at Arktouros PLLC.  His experience combines litigation at every level of federal and state judicial systems, including the U.S. Supreme Court, with practical, international commercial and emerging technology in-house expertise. Before joining the firm, he served in government, private practice, and academia along with deep in-house global experience at both public (Shopify) and private (DeFi Labs GmbH) international tech companies. From initial domestic or foreign government inquiry to oral argument in the U.S. Supreme Court, Matt has been involved in innumerable types of criminal and civil government investigation and litigation matters, including major cross-border disputes and crisis/incident response. 

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Matt’s public service and private practice experience was primarily as litigator and government investigation lawyer, handling significant appellate matters, trial court motions, litigation strategy, and investigations/subpoenas. As Virginia’s first Principal Deputy Solicitor General, he argued and won (5-4) a complex double jeopardy case in the U.S. Supreme Court (Currier v. Virginia). Matt has been counsel of record in more than 40 other Supreme Court matters, argued more than 20 appellate cases across wide-ranging subjects, and led the briefing strategy in more than 100 cases. Matt uses his appellate experience to efficiently embed with trial and arbitration teams to develop legal strategy and prepare major motions.  

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Matt was enticed away from private practice by the opportunity to be Shopify’s first global regulatory lawyer, and by the time he left Shopify, he had served as head of Shopify’s data protection legal team, led policy engagement for major European tech regulations (Digital Markets Act and Digital Services Act), and served as Senior Advisor/Deputy to the General Counsel to oversee the most difficult and complex legal issues facing the company. As General Counsel/Chief Compliance Officer at DeFi Labs GmbH, Matt guided the team through the numerous issues affecting a venture-backed startup while working closely with the founders and product team on the global legal obligations for crypto/blockchain.  

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Between his public service, private practice, and in-house experiences, Matt’s advised on matters involving innumerable government actors in the United States (e.g., US Congress, CFPB, DHS, DOJ, FBI, FERC, FTC, SEC, and State Attorneys General and state agencies), European Union and individual Member States, United Kingdom, Canada, Japan, Singapore, Argentina, Cayman Islands, and South Africa, among others. 

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Matt frequently is asked to speak on oral advocacy, and people have noted the “exceptionally high intellectual plane” of the oral argument in his cases. He’s also published several law review articles, including a recent one on personal jurisdiction, crypto, and DAOs. He’s previously taught a law school course on State Constitutions and State Attorneys General at the University of Richmond. 

Michael Mosier is a co-founder of Arktouros PLLC.  He has twice been the first in-house counsel at emergent technology companies:  Chainalysis (blockchain analytics/investigations) and Espresso Systems (configurable private computation and decentralized sequencing).   He has served as an independent board director and chair of the Government Security Committee for an artificial intelligence and autonomous vehicle systems public company operating under a Committee on Foreign Investment in the United States (CFIUS) National Security Agreement.

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In public service, Michael was Acting Director, Deputy Director, and the first Digital Innovation Officer of the U.S. Treasury’s Financial Crimes Enforcement Network (FinCEN), where he worked closely with federal, state, and international counterparts on the development and implementation of policy and regulation, as well as advancing digital identity and privacy-enhancing technology approaches to preventing exploitation.  He also was Counselor (Cybersecurity & Emerging Technology) to the Deputy Secretary of the Treasury.

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Previously, Michael served as Associate Director and Acting Deputy Director of Treasury’s Office of Foreign Assets Control (OFAC), leading the Office of Compliance & Enforcement and Office of Sanctions Policy & Implementation.    

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Before Treasury, Michael was a Deputy Chief in the Department of Justice’s Money Laundering Section, where he created and led the Special Financial Investigations Unit.  He also served at the White House National Security Council as Director for Transnational Organized Crime.  

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Michael has been an adjunct professor (Advanced Evidence for Trial) at Georgetown University Law Center and began his public service as a prosecutor with the Manhattan District Attorney’s Office.

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Michael is also a partner in ex/ante, an early-stage venture fund investing in technology that advances democratic resilience and personal sovereignty.

Michael (Mike) Parker is a Partner at Arktouros PLLC.  Prior to this role, he served as the head of the anti-money laundering and sanctions practice at a prominent Washington, D.C. law firm specializing in U.S. economic sanctions administration and compliance.  In private practice, Mr. Parker was the principal attorney responsible for the very first successful lifting of U.S. economic sanctions of a Russian national following the invasion of Ukraine from the Specially Designated Nationals List (SDN List) administered by the U.S. Department of the Treasury’s Office of Foreign Assets Control (OFAC).  His current and previous clients include prominent industrialists, top financial institutions, and private equity funds, in addition to international expert witness engagements.  Additionally, Mr. Parker is an Adjunct Professor of National Security Law in the Georgetown University Security Studies Program.

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Mr. Parker is a former federal prosecutor with the U.S. Department of Justice’s Money Laundering and Asset Recovery Section (MLARS), where he served as a subject matter expert on economic sanctions for MLARS and U.S. Attorneys’ Offices across the country.  During his six-plus years at MLARS, Mr. Parker was responsible for money laundering and forfeiture investigations of transnational criminal organizations and foreign threat actors, including serving as the lead MLARS prosecutor for the “Panama Papers” case.  Among his matters, Mr. Parker prosecuted cases involving major international financial institutions, foreign ransomware actors, hostile adversarial nations, criminals who launder funds through cryptocurrency, and complex trade-based money laundering networks.  In 2017, the Federal Bureau of Investigation (FBI) awarded Mr. Parker with the FBI Director’s Award for Outstanding Counterintelligence Investigation for his work on a North Korea-related sanctions evasion and money laundering case that was perpetrated through the U.S. banking system.

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Prior to his time at DOJ, Mr. Parker spent nearly eight years at OFAC where he served as a Sanctions Investigator, and later a Section Chief in OFAC’s Enforcement Division.  During his tenure at OFAC, Mr. Parker was responsible for sanctions investigations of transnational criminal organizations, cartel-related targets under the Foreign Narcotics Kingpin Designation Act, and high-profile Middle Eastern sanctions targets under various legal authorities. He also held supervisory authority over one of three OFAC Enforcement divisions and was the supervisory enforcement officer for violations of U.S. sanctions programs.

Michelle Ann Gitlitz is Managing Partner of the New York Office of Arktouros PLLC. Michelle specializes in financial crimes compliance and defense, with a focus on cryptocurrency, payments systems, and decentralized finance.  She has designed and reviewed state and federal AML and cybersecurity compliance programs for financial institutions, cryptocurrency exchangers, and payment services companies. She also assists companies in applying for state money transmission licenses and with day-to-day compliance for license holders. Michelle is a frequent speaker, writer, and collaborator with federal and state regulators and legislators on money transmission and payments issues.

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Michelle is the author of Reimagining Payments: The Business Case for Digital Currencies (Racquet Publishing 2023) (available on Amazon). The book imparts strategic and tactical advice for senior business leaders on the benefits of digital currency payments and the future of commerce. Michelle has served as a New York State court-appointed fiduciary receiver in the case NYAG v. Coinseed (Index No. 450366/2021) with special powers to locate and safeguard investments made in a defunct cryptocurrency platform.

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Michelle previously served as general counsel and corporate secretary of a global payments company, was the co-head of the financial services practice group of an AmLaw 100 law firm, and was the global head of the blockchain and digital asset practice groups at two AmLaw 100 law firms.

Rebecca Rettig is Of Counsel at Arktouros PLLC. She is currently general counsel of a large international software development company that builds blockchain scaling infrastructure, including aggregated network scaling. Prior to her current role, Rebecca was general counsel at a software development company building DeFi and other blockchain-based applications. The majority of her preceding career was outside counsel -- at Cravath, Swaine and Moore LLP she represented clients in litigation and enforcement matters, including on both the financial services side and in early peer-to-peer technology litigation. After Cravath, Rebecca dedicated her legal career to representing software development companies in the blockchain space, advising clients on legal and regulatory matters relating to novel technologies and litigating some of the earliest crypto lawsuits and regulatory enforcement matters and investigations.