Arthur W. Lefco: Lawyer with Marshall Dennehey Warner Coleman & Goggin, P.C.

Arthur W. Lefco

Arthur W. ("Terry") Lefco is a shareholder with Marshall, Dennehey, Warner, Coleman & Goggin and has developed a reputation as one of the Philadelphia area's most experienced and accomplished trial lawyers in professional liability, coverage, and commercial litigation cases.
Senior Counsel
Philadelphia,  PA  U.S.A.
Phone(215) 575-2588

Peer Rating
AV® Preeminent

Client Rating

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Experience & Credentials Ratings & Reviews

Practice Areas

  • Professional Liability
  • Commercial Litigation
  • Accounting Malpractice
  • Civil Rights
  • Insurance Coverage
  • D & O Litigation
University Michigan State University, B.S., 1968
Law SchoolUniversity of Pennsylvania Law School, Philadelphia, Pennsylvania, J.D., 1971
Admitted1971, Pennsylvania; 1971, New Jersey; 1972, U.S District Court Eastern District of Pennsylvania; 1984, U.S. Court of Appeals 3rd Circuit; 1984, U.S. Supreme Court

Associations & Memberships
•American Bar Association
•American Law Institute, Elected Member
•Association of Professional Responsibility Lawyers
•Court of Common Pleas, Philadelphia County, Pennsylvania, Judge Pro Tempore, 1994 to present
•Insurance Programs Committee, Philadelphia Bar Association, 1983 - Present
•Pennsylvania Bar Association, Professional Liability Committee, Vice Chair 2010, Past Chair
•Pennsylvania Supreme Court Disciplinary Board
•Member, Hearing Committee, 1998 - 2001
•Chair, Hearing Committee, 2001 - 2004
•University of Pennsylvania Law School Alumni Society, 1995 - Present. Past President


Arthur (Terry) W. Lefco has developed a reputation as one of the Philadelphia areas' most experienced and accomplished trial lawyers in professional liability, coverage and commercial litigation cases. His fellow lawyers and their insurers routinely seek out his advice, counsel and representation.

Terry's service to the bar and the public in law-related fields, such as the Pennsylvania Disciplinary Board, the American Law Institute, the University of Pennsylvania Law School and the Philadelphia and Pennsylvania Bar Associations, has been extensive. He has written and lectured often in the areas of lawyers' professional liability and professional responsibilities.

Terry has been recognized as a Pennsylvania Super Lawyer for 2005 through 2014 and named Best Lawyers in America 2007 to present in the areas of Legal Malpractice Law-Defendants, Professional Malpractice Law-Defendants and Commercial Litigation. He holds an AV Preeminent by LexisNexis Martindale-Hubbell.

Classes/Seminars Taught

False Arrest and Malicious Prosecution, webinar, CNA Insurance, September 2011

Malpractice Avoidance Seminars - Delaware County Bar Association, Montgomery County Bar Association, Bucks County Bar Association, 2008 - 2010

•Numerous Malpractice Avoidance Seminars - Pennsylvania Law Firms, 1990 - 2010

Malpractice Avoidance Seminar, Conference of County Bar Leaders, State College, Pennsylvania, March 4, 2005

Avoiding Malpractice Liability, Pennsylvania Bar Association, Reading, Pennsylvania, April 19, 2005

Special Problems of Lawyer Experts, Pennsylvania Bar Association Civil Litigation Section, Annual Retreat, April 1113, 2003

Hot Topics in Business Litigation, Professional Education Systems, Inc., November 19, 2002

Legal Ethics in Pennsylvania, Lorman Education Services, September 18, 2002

Avoiding and Dealing With Tax Malpractice Cases, Pennsylvania Institute of Certified Public Accountants, Greater Philadelphia Chapter, November 28, 2001

Past Employment Positions

•Cozen O'Connor, Senior Member, 1998 - 2002

•Sherr, Joffe & Zuckerman P.C., Shareholder, 1994 - 1998

•Mesirov, Gelman, Jaffe, Cramer & Jamieson, Associate to Partner, 1975 - 1994

•Philadelphia Housing Authority, General Counsel, 1973 - 1975

Honors & Awards
• AV Preeminent by LexisNexis Martindale-Hubbell
• Best Lawyers in America - Commercial Litigation, Legal Malpractice Law-Defendants, Professional Malpractice Law-Defendants, 2007 -Present
•Pennsylvania Super Lawyer, 2005 -2014
•Philadelphia Best Lawyers, 2007 - Present
•University of Pennsylvania Law School, Alumni Award of Merit

Year Joined Organization: 2002

Craig Hudson (Ft. Lauderdale, FL), Terry Lefco (Philadelphia, PA),Jack Slimm (Cherry Hill, NJ), and Art Wheeler (Cherry Hill, NJ) were the featured speakers for a national webinar entitled False Arrest and Malicious Prosecution
October 1, 2011
Craig Hudson (Ft. Lauderdale, FL), Terry Lefco (Philadelphia, PA),Jack Slimm (Cherry Hill, NJ), and Art Wheeler (Cherry Hill, NJ) were the featured speakers for a national webinar entitled False Arrest and Malicious Prosecution. This national webinar was hosted by CNA Insurance with over 180 in...

Reported CasesSignificant Representative Matters: Atkinson v. Haug, 424 Pa. Super. 406, 622 A.2d 983 (Pa. Super. 1993) (Redefined implied attorney client relationship under PA Law; Home Ins. Co. v. Powell, 1996 U.S. Dist. LEXIS 6863 (E.D. Pa. 1996). Malpractice insurance coverage based on subjective / objective analysis of lawyer's knowledge; Oliver v. Sid Bernstein, Ltd ., 1997 U.S. Dist. LEXIS 3276 (E.D. Pa. 1997). Jury verdict in favor of lawyer on fraud claim relating to escrow account; Int'l Land Acquisitions, Inc. v. Fausto, 39 Fed. Appx. 751, 2002 U.S. App. LEXIS 13256 (3d Circuit Court of Appeals 2002). Plaintiff's expert testimony in legal malpractice case defective where no opinion on causation; UA Theatre Circuit, Inc. v. Twp. of Warrington, 316 F.3d 392, 2003 U.S. App. LEXIS 515 (3d Cir. Pa. 2003). Established requirement in 3rd Circuit that denial of substantive due process requires conduct which shocks the conscience; Nixon v., 196 F. Supp. 2d 920 (Ed MO 2002).Declared Telephone Consumer Protection Act of 1992 unconstitutional in defense of First Amendment; Capital Care v. Hunt, 847 A.2d 75 (PA Super. 2004).Restated standard for scope of attorney duty to client.; Published Works: Insurance Claim Information May Be Discoverable, ABA Journal, July 2000; Wrongful Use of Civil Proceedings, Pennsylvania Bar Institute, 2000; Successful Termination in Wrongful Use of Civil Proceedings Cases, Pennsylvania Bar Institute, PBI No. 2000-2546 B; Common Causes of Legal Malpractice and How to Avoid Them, Pennsylvania Bar Institute, PBI No. 1999-2339

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Office Information

Arthur W. Lefco

2000 Market Street, Suite 2300
PhiladelphiaPA 19103


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