Named experts · Practitioner profile
About William
William O'Rorke is the founding partner of ORWL, a Paris law firm built around Web3, crypto, and digital-asset regulation, and he heads the legal committee of ADAN, France's main crypto-asset association. He leads ORWL's regulatory practice, advising VASPs and CASPs on French PSAN registration and the transition to MiCA authorisation. O'Rorke comments publicly on MiCA, staking taxation and the PSAN-to-CASP migration, including on Cryptoast and Law of Code. France's early PSAN regime makes its operators a leading test case for how pre-MiCA national licences convert.
Practice fields
Credentials
- Founding partner, ORWL (Paris) — Web3 and digital-asset law
- Head of the legal committee, ADAN (Association pour le développement des actifs numériques)
- Leads PSAN registration and PSAN-to-CASP migration mandates under MiCA
- Frequent commentator on MiCA, staking taxation, and French crypto regulation
Jurisdictions
Sources
Every entry on this page is sourced from public records. The references below are the evidence base for the practitioner's expertise claims.
- ORWL — Regulatory practice — firm bio
- ORWL — MiCA: what, who and when? (William O'Rorke, Feb 2023) — publication
- Law of Code — Reviewing the EU's MiCA with William O'Rorke — industry press
Relevant guides
Knowledge-base coverage that overlaps with William's practice (France, European Union · MiCA CASP, Crypto M&A).
MiCA · CASP operations & lifecycle
CASP Operations and Lifecycle 2026 — MiCA Passport, Banking, Wind-Down
The CASP passport under MiCA Article 65 went operational in late 2024 — but a working passport is one part of running an authorised CASP. Th…
Qualifying holdings · CASP acquisitions
Qualifying Holdings Acquisitions 2026 — MiCA CASP Guide
MiCA Articles 83 and 84 govern notification and assessment of any acquisition of a qualifying holding in a CASP, and of increases past 20%, …
Crypto brokerage · OTC desk · MiCA services
Crypto Broker License 2026 — OTC Desk and Brokerage Under MiCA
A crypto broker license under MiCA is built from CASP services — reception and transmission of orders, execution, and placing for an agency …
Crypto casino · Gambling + crypto licensing
Crypto Casino License vs Gambling License 2026 — What Operators Need
Crypto casino operators face the intersection of gambling regulation and crypto-asset regulation. Some jurisdictions treat crypto casinos un…
Crypto company formation · Cross-jurisdiction guide
Crypto Company Formation 2026: The Vehicle, the Capital, and the Licence
A cross-jurisdiction guide to forming the company behind a crypto business — Estonia OÜ, Lithuania UAB, Czech s.r.o., Ireland LTD, Poland sp…
EU TFR · Travel Rule · 2026 implementation
EU Travel Rule, AML, Sanctions & DAC8 — CASP Compliance 2026
The EU AML, Travel Rule, sanctions and tax-reporting stack for CASPs in one place: the TFR and what differs by member state, self-hosted wal…