John J. “Jack” O’Brien counsels registered and private funds and fund managers in connection with organizational, offering, transactional, and compliance matters. He regularly works with a variety of different fund structures, including open-end and closed-end funds, exchange-traded funds, and hedge funds. He also counsels investment adviser and broker-dealer clients on various matters, particularly with respect to registration and disclosure, marketing regulations, pay-to-play issues, and transactions in exchange-traded funds.