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Diane E. DiBlasio counsels international insurance companies, syndicates, and domestic carriers on various coverage related matters having to do with first-party and third-party claims.  She also litigates insurance coverage matters and defends clients in state and federal trial courts across multiple jurisdictions.

Diane represents leading domestic and international carriers, as well as a significant number of syndicates in the world's leading specialist insurance market: Lloyd's of London. She works with underwriters, brokers, managing general agents and third-party administrators to work through first-party insurance matters and third-party/liability matters, including Representations & Warranty (W&I) claims and coverage disputes, Commercial Crime claims, and Property claims.

In addition to her professional work, Diane is the firm’s Hiring Partner and Co-Chair of the Women’s Committee. She is also an active member of the Law Firm Alliance (LFA) and Professional Liability Underwriting Society (PLUS).

Bar Admissions

  • Maryland
  • District of Columbia
  • New York
  • Virginia


  • J.D., Touro College Jacob D. Fuchsberg Law Center, 2011
    Touro Law Review
  • B.S. in English, Minor: Political Science, summa cum laude, Dean's List, Towson University, 2007


  • Bar Association of Baltimore City
  • District of Columbia Bar Association
  • DRI
  • Maryland State Bar Association
  • New York State Bar Association
  • Professional Liability Underwriting Society (PLUS)
  • Virginia Association of Defense Attorneys
  • Young Lawyers Division

Maryland Super Lawyers, Rising Stars Insurance Coverage: 2021, 2022, 2024

  • Niles, Barton & Wilmer, LLP Hiring Partner
  • Niles, Barton & Wilmer, LLP Women’s Committee Co-Chair 
  • Trademark Protection of Color Alone: How and When Does a Color Develop Secondary Meaning and Why Color Marks Can Never Be Inherently Distinctive, 27 TOURO L. REV. 407 (2011).
  • Corporate Disputes Magazine “Resolving Post-Acquisition Disputes: Representations and Warranties (R&W) Claims” July-September 2021

2023 LFA Women’s Forum Panelist: How to be a Better Advocate for Yourself