Mary Lou Mauro Summerville

Attorney in Houston, TX

Ms. Summerville joined the Houston office of Galloway, Johnson, Tompkins, Burr & Smith in 1997. She has extensive experience defending clients in employer liability, environmental liability, and products liability cases with an emphasis on workers' compensation (including LHWCA), toxic torts (benzene, asbestos, silica and ephedra) and multi-plaintiff litigation. With a proven track record of quickly identifying and pursuing the best interests of her clients, she strives to solve problems that face her clients in an effective, efficient and ethical manner.

Mary Lou Summerville has an AV Preeminent rating with Martindale-Hubbell, the authoritative resource for information on attorneys worldwide. The AV rating is an indication of very high to preeminent legal ability, an exemplary reputation and a well-established practice and is the highest rating in legal ability and professional ethics that a law firm or lawyer can achieve.

Ms. Summerville was raised in a number of U.S. cities. A native Texan, her family not only lived in Waco, Dallas, and San Antonio, Texas before she graduated from high school, they also lived in Denver, Colorado; Philadelphia, Pennsylvania; and Tulsa, Oklahoma. After graduation from Texas A&M University in 1986, she spent a year in Washington D.C. as a research assistant monitoring federal legislation prior to attending law school in 1987. Upon earning her Juris Doctor from South Texas College of Law in Houston, Texas, she opted to remain in her "adopted" hometown of Houston where she permanently resides with her husband and young son.


Longshore (LHWCA) and Texas Workers' Compensation Seminar, Houston Claims Association, Houston, Texas, 2011

Workers Comp Appeals Panel Update, JI Companies, Houston, Texas, 2010

Workers Comp Case Law Update, GAB Robins, Austin, Texas, 2010

Ethics in Claims Handling Seminar, Houston Claims Association, Houston, Texas, 2010

Jones Act Seminar, SeaBright Insurance Company, Houston, TX 2010

Fraud Seminar for Adjusters, Seabright Insurance Company, Houston, Texas, 2010

CE Subrogation Seminar, Gallagher Bassett, Dallas, Texas, 2009

Updates on Texas Workers' Compensation Law, CNA, Dallas, Texas, 2009

Negotiations for Adjusters, TPCIGA, Austin, Texas, 2008

Professional Associations

Texas Bar Association

Greater Houston Partnership Texas Aggie Bar Association (former board member)

Houston Bar Association

Texas A&M University System Chancellor's Committee Defense Research Institute

Houston Mariners Club

BuildSafe Southwest, Board of Directors

Defense Research Institute (DRI)

Women Lawyers Alliance (WLA)

(713) 599-0700
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Peer Rating 4.9 of 5

Areas of Law

  • Construction
  • Employer's Liability
  • Environmental & Toxic Tort
  • Insurance Defense
  • Maritime & Admiralty
  • Products Liability
  • Property Insurance
  • Professional Liability


Peer Rating


Overall Peer Rating

in Litigation, Toxic Torts and Personal Injury
4.9 out of 5.0

Legal Knowledge
Analytical Capabilities
Communication Ability
Legal Experience

  • Meets very high criteria of general ethical standards
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Experience & Credentials



Admission Details

Admitted in 1990, Texas
2003, United States District Courts: Southern, Western, Northern, and Eastern Districts of Texas

Law School Attended

South Texas College of Law
Juris Doctor 1990

University Attended

Texas A&M University
Class of 1986
Political Science, History and Journalism

Associations & Memberships

Professional AssociationsTexas Bar AssociationGreater Houston Partnership Texas Aggie Bar Association (former board member)Houston Bar AssociationTexa... More

Contact Information


(713) 599-0700




Send email to Mary Lou Mauro Summerville

Social Networking

Office Information
Mary Lou Mauro Summerville
 1301 McKinney Street, Suite 1400,
Houston, TX 77010


Galloway, Johnson, Tompkins, Burr & Smith A Professional Law Corporation (Houston, Texas)

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