Mark M. Attar attorney profile image

Mark M. Attar
1001 G Street, N.W.
Seventh Floor
Washington, DC 20001
T: (202) 661-7021
F: (202) 661-7059
Practice Areas
  • L.L.M., Georgetown University Law Center, 2008
  • J.D., New York Law School, 1996
  • B.A., Franklin & Marshall College, 1993
  • District of Columbia
  • New York


Mark Attar represents and counsels broker-dealers on all aspects of their business, including examination and enforcement, with a particular focus on SEC and SRO financial and operational rules, including rules relating to net capital, customer protection, books and records, reporting, and risk assessment. He advises companies active in the digital asset business, rating agencies, and investment advisers, and has expertise helping firms satisfy their independent consultant undertakings with regulators.

Mr. Attar has over twenty years of experience dealing with SEC regulatory issues, including 12 years of experience at the Securities and Exchange Commission. His roles at the SEC included Branch Chief and Senior Special Counsel, both in the Division of Trading and Markets. There he managed attorneys responsible for administering the SEC’s broker-dealer financial responsibility rules. This included completing mandating rulemaking under the Dodd-Frank Act relating to security-based swap dealer capital, margin, and segregation, statutory and regulatory credit rating reference removal, broker-dealer reporting, and audit and notification requirements.