Main Menu

Barnaby Grzaslewicz



Barnaby Grzaslewicz is a Partner in the Corporate and Commercial Litigation Practice Group. He is an experienced Delaware litigator focusing his practice on litigation involving corporations and other business entities formed under Delaware law.

Barnaby represents clients in the Delaware Court of Chancery in various business disputes. His experience includes litigating breach of fiduciary duty, breach of contract and fraud actions, as well as litigating disputes arising under Delaware’s corporate and alternative entity statutes, including control contests, demands for books and records and demands for advancement and indemnification.  

Barnaby also has an active practice before the Complex Commercial Litigation Division of the Delaware Superior Court, including, most recently, successfully prosecuting a post-acquisition fraud claim as first chair litigation and trial counsel, which resulted in a multi-million dollar judgment for his client.

Barnaby further provides insights into Delaware corporate and commercial litigation through his avid contributions to the Morris James Business Litigation Report, as well as in publications such as the Delaware Business Court Insider and the ABA’s Business Law Today.

Barnaby has been recognized by his peers as an up-and-coming litigator in the field of corporate and commercial litigation, garnering Best Lawyers, “Ones to Watch” honors in 2022 and 2023.

Representative Matters

Corporate and Alternative Entity Litigation 

  • Representing defendants against claims of aiding and abetting fiduciary’s alleged usurpation of corporate opportunities totaling hundreds of millions of dollars
  • Representing leading manufacturer in response to Section 220 books and records demand seeking to investigate Board actions 
  • Successfully appointed receiver to cancelled limited liability company to pursue derivative claims against controlling member who usurped multi-million dollar corporate opportunity for itself and related entities
  • Successfully denied advancement to removed manager under governing limited liability company agreement based on failure to follow threshold demand requirements 
  • Successfully represented plaintiff in an expedited Section 225 control contest resulting in invalidation of improperly elected board

Commercial Litigation

  • Representing defendants in an earn-out dispute; successfully dismissed plaintiffs’ request for punitive damages at early stage of the litigation
  • Representing defendants against breach of contract claim seeking commissions worth millions of dollars in perpetuity 
  • Representing plaintiff against stock issuer and transfer agent for negligent escheat of stock depriving plaintiff of over a million dollars’ worth of accrued stock value
  • Served as litigation and first chair trial counsel in a post-acquisition fraud dispute resulting in a multi-million dollar judgment for client
  • Successfully briefed and argued motion for judgment on the pleadings relating to multi-million dollar note default


Articles & Publications

News & Events



Best Lawyers, "One to Watch", 2022 - 2023

T 302.888.6827
F 302.571.1750


The Honorable Robert B. Young, Superior Court of the State of Delaware


District of Columbia
U.S. District Court, District of Delaware


Temple University Beasley School of Law, JD, magna cum laude, Order of the Coif, 2014
Oberlin College, BA, High Honors, 2009

Back to Page