Attorney David D. O'Sullivan

David D. O'Sullivan

Practice Areas

  • Business Services
  • Mergers and Acquisitions



David O'Sullivan is an Equity Shareholder at Huck Bouma and Co-Chair of Huck Bouma's M&A and Corporate Transactional practice groups.

With respect to his M&A practice, Dave has over 20 years of experience leading complex acquisitions, divestitures, reorganizations, recapitalizations and restructurings in a wide variety of transaction structures (including stock transactions, asset transactions, mergers, Section 338(h)(10) transactions, and tax-deferred equity rollover transactions) and in a wide variety of industries (including manufacturing, distribution, services and technology).

Dave's practice also includes representing private companies with general corporate matters, such as choice of entity planning and execution (including appropriate ownership arrangements such as operating agreements or shareholder agreements), corporate governance, joint ventures, strategic planning, succession planning and contract negotiation and review. In this role, Dave will very often act as outside general counsel to his corporate clients.

Due to his extensive experience in M&A and general corporate transactions, Dave is known for bringing a practical and solutions-oriented approach to client matters.


  • DePaul University College of Law, Chicago, Illinois
    • J.D. - 1996
    • Honors: Order of Coif
    • Honors: With Highest Honors
  • University of Illinois – Champaign
    • B.S. - 1993
    • Honors: With Honors
    • Major: Finance

Bar Admissions

  • Illinois

Professional Associations

  • Illinois Bar Association, Member
  • American Bar Association, Member
  • DuPage County Bar Association, Member
  • Midwest Business Brokers Institute, Member
  • Huck Bouma Corporate Practice Group, Co-Chair