Daniel P. Tighe

Practice Areas


Daniel P. Tighe represents clients in business disputes and regulatory proceedings in state and federal courts throughout the United States.  His practice is wide-ranging.  He was one of the lawyers who represented the Winklevoss brothers in part of their dispute against Facebook, as later dramatized in the movie The Social Network.  He represents a large Boston-based insurance carrier in a variety of matters, including class actions and disputes over the terms of large commercial insurance programs and allegations related to claims handling.  He represents clients involved in proceedings with the Securities and Exchange Commission and in intellectual property disputes.  He also represents, on a pro bono basis, a number of undocumented immigrants facing deportation proceedings.

Dan co-chairs Prince Lobel’s Litigation Practice Group.  He is the co-chair of the Steering Committee for the Boston Bar Association’s Business and Commercial Litigation Section.  Dan is a past member of the Civil Litigation Section Committee of the Massachusetts Bar Association, and he has served on continuing legal education panels related to various civil practice issues.  Dan has also been named a Massachusetts’ “Super Lawyer” for each year since 2005.

From 2001 through 2013, Dan was a partner at Boston’s Griesinger, Tighe & Maffei, LLP and before that, he was an associate and partner at Hale and Dorr LLP.  He also worked as a special assistant district attorney in Middlesex County.

  • New York University School of Law, J.D., 1990
  • Trinity College, B.A. with honors, 1987
  • Massachusetts
  • Boston Bar Association
  • 2015-present: Boston Bar Association – Steering Committee of the Business & Commercial Litigation Section
  • 2014: Appointed Hearing Officer for Board of Bar Overseers Proceedings
  • 2005-present: Recognized as a “Massachusetts Super Lawyer” in the area of Business Litigation
  • June 2018: Co-moderator, “Business Litigation Session Year in Review 2018,” BBA CLE
  • Skiffington v. Liberty Mutual Ins. Co., Hampden County Case. 1670-00061 (Ma. Sup. Ct. October 27, 2016). Lead counsel to Liberty Mutual in class action challenging claims practices.  Successfully moved to dismiss the complaint.
  • CFN Agency, Inc., v. Liberty Mutual Ins. Co., No. 12-12091-LTS, 2015 WL 6453137 (D. Mass. Oct. 23, 2015). Lead counsel for insurance company in significant agency dispute. Obtained partial summary judgment.
  • Gioioso & Sons v. Liberty Mutual Ins. Co., Suffolk County Superior Court Case No. 12-3738-D. Lead counsel to Liberty in putative class action alleging inappropriate practices related to large commercial insurance programs. Defeated class certification in October 2014. Obtained summary judgement in October 2016.
  • Cummings v. Liberty Mutual Ins. Co., Hampden County Superior Case No. 2010-00344. Lead trial counsel to Liberty in bad faith claims handling case. Court finds for Liberty on all issues in August 2014 after week long trial.
  • Bristol Place Limited Partnership v. DeMoulas Supermarkets, Inc., Bristol County Superior Court Case No. 1473 CV 657. Lead counsel to DeMoulas Super Markets in case brought by landlord seeking to force DSM to open supermarket during management change in 2014. Successfully defeated motion for preliminary injunction.
  • Allison v. Eriksson, Suffolk County Superior Court Case No. 13-1858 -BLS1. Successfully defeated motion for preliminary injunction seeking to prevent and unwind a corporate merger brought by minority LLC member alleging breach of fiduciary duties.
  • Winklevoss, et. at. v. Facebook, Inc., et al., United States District Court Civil Action No.: 07-10593-DPW (and related cases and appeals). Co-counsel to various parties alleging that they were the true founders of Facebook. This case was dramatized in the movie The Social Network.
  • The General Hospital Corporation d/b/a Massachusetts General Hospital v. QLT Phototherapeutics (Canada), Inc., United States District Court for the District of Massachusetts, Civil Action No. 09-10364-WGY. Represented MGH in this suit against a Canadian drug company to enforce the terms of a license agreement. The case was successfully resolved when QLT agreed to pay MGH $20 million. According to Massachusetts Lawyers Weekly, this was the largest civil settlement in 2009 in Massachusetts.
  • Securities and Exchange Commission v. David K. Donovan et al., U.S. District Court for the District of Massachusetts, Civil Action No. 08-10649-RWZ. Successfully represented securities broker exonerated after lengthy federal jury trial alleging trading on insider information.
  • Emptoris, Inc. v. Opera Solutions, et al., Middlesex Superior Court, Civil Action No. 06-01239. Represented Emptoris in a suit related to various contracts. In October 2009, a jury found for Emptoris on claims involving more than approximately $1,400,000.
  • Geehrer v. AT&T Services, Inc., et al . San Francisco Superior Court Case No. 7-46792. Represented ModusLink Global Services in California consumer class action related to AT&T rebate programs.
  • CSC Consulting v. Powell, et al., Suffolk Superior Court C.A. 07-0887-BLS (March, 2007). Successfully obtained an injunction for CSC Consulting in case involving the enforcement of a non-competition agreement.
  • Schneider v. Fidelity Investments, NASD Case No 05-200 (January 2007). Represented Fidelity in five- day NASD arbitration which resulted in a decision favorable to Fidelity.
  • CMGI Inc. Co. v. American & Foreign Insurance Company, Essex County Superior Court, Civil Action No. 02-1653C. Represented CMGI in insurance coverage case in which, after a two-week jury trial in early 2005, a verdict was returned in favor of CMGI on all claims and awarding more than $1 million.
  • In Re Initial Public Offering Securities Litigation, 241 F. Supp. 2d. 70 (S.D.N.Y. 2003). Represented Boston-based underwriter in class action lawsuit in which plaintiffs asserted claims under the federal securities laws based on allegations about the manner in which issuers and underwriters distributed shares of stock in connection with 309 stock offerings. Described as one of largest class actions ever filed.
  • Liberty Mutual, Ins. v. United Technologies Corp., 2003 WL 269673 (Mass. Super. Ct. Jan. 13, 2003). Represented Liberty Mutual in this dispute involving a claim by a policyholder, United Technologies, for more than $2 million in retrospective insurance premiums. The court entered summary judgment in favor of Liberty on all liability issues, leading to a settlement favorable to Liberty.
  • Harhen v. Brown,431 Mass. 838 (1999). Counsel to defendants in this case in which SJC stated law related to derivative lawsuits, ultimately leading to changes in Massachusetts Corporations Act.