Fintech & Blockchain

Benjamin J. Armour Partner 617 338 2423 vCard
John G. Balboni Partner 617 338 2438 vCard
Harvey E. Bines Partner 617 338 2828 vCard
Samuel C. Bombaugh Associate 617 338 2450 vCard
Oded Har-Even Counsel / Managing Director 212 660 5002 vCard
Jon M. Jenkins Partner 212 660 3016 vCard
Scott L. Kaufman Partner 212 660 3026 vCard
Natalie S. Lederman Associate 212 660 3039 vCard
Amiti Rothstein Associate 212 660 5017 vCard
Mitchell C. Stein Partner 212 660 3042 vCard
Douglas S. Stransky Partner 617 338 2437 vCard
Joel S. Telpner Partner 212 660 3015 vCard
Mari H. Tomunen Associate 212 660 3054 vCard
Amir Vitale Associate 617 338 2832 vCard
Noa Weyl Associate 212 660 5008 vCard

As a thought leader and a trailblazer in the industry since 2014, Sullivan & Worcester represents more than 100 blockchain clients whose size varies from top 10 cryptocurrencies by market cap and large enterprises to smaller startups. We help our clients pursue business ideas never done before. These new ideas involve unseen regulatory uncertainty and have forced us to think beyond traditional ways of practicing law.

We help clients navigate emerging legal issues and regulatory uncertainties, manage risk, identify opportunities and proactively plan for the future. With deep financial, regulatory and technological expertise, we ascertain the implications blockchain will have on our clients’ operations and prepare them to offer new services and products. Working with entrepreneurs, investors and established companies in a range of industries, we provide strategic guidance to help clients finance, develop and capitalize on the promises of blockchain technology while gaining a competitive edge in the marketplace.


Watch video of "The Future of Blockchain and Trust" on April 19, 2018
The Future of Blockchain and Trust
April 19, 2018
Watch video of "Blockchain to the Bahamas" on March 1, 2018
Blockchain to the Bahamas
March 1, 2018
Watch video of "Developments Involving FinTech and BlockChain Initiatives" on May 18, 2017
Developments Involving FinTech and BlockChain Initiatives
May 18, 2017

Specifically, our practice group is best known for:

Pioneering legal advice

  • Joel Telpner structured some of the first ICOs and blockchain-based applications. He is famous for structuring the first issuance of digital securities utilizing blockchain technology for and helping in launching Overstock’s distributed ledger platform, tZero.
  • Our practice is highly adaptable, working on unique, often first-impression issues: a novel two‑token ICO structure that incorporates utility and security tokens; a net-positive environmental and social-impact offset token; asset-backed token offerings; a retail crypto exchange; and others.

Rapid growth of the practice group

  • As a result of the practice group’s success in the last 12 months, our client roster has expanded to more than 100 blockchain and cryptocurrency clients.

Regulatory policy initiatives

  • We are at the forefront of regulatory development in the blockchain space. Joel Telpner works on global policy initiatives with the Blockchain Research Institute, the Wall Street Blockchain Alliance, the Blockchain Global Business Council and Wharton Reg@Tech, among others to develop guidance on best practices for ICOs and manage the legal issues surrounding digital currency and distributed ledger technology.

Governmental advice

  • In one of the more unanticipated developments this year, we have begun advising various governments interested in blockchain and digital currency applications in regard to monetary policy, legislation, citizens’ identity creation and management, property record keeping, and additional state-related issues.

Wide client base

  • We advise clients on nearly all aspects of fintech and blockchain transactions, including some of the largest cryptocurrencies, enterprises, startups, funds, central banks, and digital asset exchanges.
  • We also advise regulatory bodies worldwide on emerging fintech and blockchain issues.

Chambers and Partners 2019 Leading Firm