About
Where law meets technology.
American Digital Asset Consultingpairs regulatory depth with hands-on technical fluency. We write the practitioner's guides to the digital asset frameworks — and advise the firms and builders who have to live with them.
The Principals
Two disciplines, one firm.
James R. Holbein
Legal & Regulatory
James R. Holbein is an experienced international trade and customs lawyer and former U.S. federal executive. He believes blockchain networks using digital assets and Web3 capabilities offer an exciting opportunity to reform centralized, globalized systems to become far more efficient and open to the people of the world. Compliance-oriented, he focuses on what compliance looks like for blockchain organizations, and has collaborated with Justin on a dozen articles on the technical and legal developments in the blockchain and digital asset sector.
Justin E. Holbein
Technology & Crypto
Justin E. Holbein is a blockchain subject-matter expert and full-stack onchain developer who has been in the cryptocurrency space since 2014. Building at the intersection of AI and crypto, he actively works on the protocols the firm advises on — particularly payment-protocol and AI-agent infrastructure — putting into practice what the books describe.
The Work
Books, insights, and engagements.
The firm's writing — From GENIUS Act to State Innovation and the insights hub — is the framework. The engagements are where it lands: compliance and certification, governance structuring, and building production systems. Legal and technical counsel, under one roof.