Duane Morris

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Duane Morris LLP
Duane Morris
HeadquartersPhiladelphia, Pennsylvania
No. of offices29
No. of attorneys800+
Major practice areasGeneral practice
Key peopleMatthew A. Taylor (Chair)
Charles J. O'Donnell (COO)
RevenueIncrease US$526,230,000 (2021)[1]
Profit per equity partnerUS$1,081,000 (2021)[1]
Date founded1904; 120 years ago (1904)
Company typeLimited liability partnership

Duane Morris LLP is a law firm headquartered in Philadelphia, Pennsylvania. The firm was founded in 1904 as Duane, Morris, Heckscher, & Roberts,[2] and has offices in the United States, London, Singapore, Vietnam, Oman, Myanmar, Shanghai, and Taiwan.[3] In addition to legal services, Duane Morris has independent affiliates in other disciplines.

Ranking and recognition[edit]

U.S. News & World Report awarded[when?] Duane Morris top-tier national rankings in bankruptcy and creditor debtor rights/insolvency and reorganization law, construction law and litigation, employee benefits law, health care law, immigration, insurance, patent law and venture capital law. In total, 28 Duane Morris practice groups were nationally ranked.[4][unreliable source?]

In 2014, the Am Law 100 ranked Duane Morris as the 71st largest law firm in the U.S. based on gross revenue.[5]


Chair Sheldon Bonovitz stepped down at the beginning of January 2008 and was replaced by former Vice Chair John J. Soroko.[6]

As of 2017, the firm had more than 750 attorneys across 27 offices.[3][7]

In January 2020, Duane Morris reached a merger agreement with Satterlee Stephens.[8]

Notable cases and deals[edit]

Notable alumni[edit]


  1. ^ a b "Duane Morris". Law.com. ALM Global, LLC. Retrieved 17 May 2022.
  2. ^ "Past and Present". Duane Morris. 2013. Retrieved 29 May 2013.
  3. ^ a b "Office List". Duane Morris. 2013. Retrieved 29 May 2013.
  4. ^ "U.S. News - Best Lawyers Best Law Firms". Archived from the original on 2013-02-05. Retrieved 2012-12-17.
  5. ^ "The Am Law 100: Firms Ranked by Gross Revenue | The American Lawyer".
  6. ^ "Duane Morris LLP - Sheldon Bonovitz Steps Down as Duane Morris Chairman, John Soroko Takes Over Law Firm Leadership". www.duanemorris.com. Retrieved 2022-03-18.
  7. ^ "About Duane Morris". Duane Morris. 2013. Retrieved 29 May 2013.
  8. ^ "New York law firm to merge with Duane Morris". Delaware Business Now. 2020-01-21. Retrieved 2020-02-24.
  9. ^ "Duane Morris LLP - Intellectual Property- Related Matters". Archived from the original on 8 December 2008.
  10. ^ National Association of Attorneys General, Master Settlement Agreement Archived June 25, 2008, at the Wayback Machine, Page 174
  11. ^ PA Bulletin Volume 30
  12. ^ "Duane Morris website". Archived from the original on May 13, 2008.

Further reading[edit]

  • Duane, Morris (1979). Duane, Morris and Heckscher: A History. Philadelphia, Pennsylvania. OCLC 7530000.{{cite book}}: CS1 maint: location missing publisher (link)

External links[edit]