Representative Matters

Maria devotes her practice within her firm's Insurance Services Group to assisting clients with all facets of insurance law including insurance litigation, coverage opinions, policy drafting and bad faith and extra-contractual disputes. Maria has extensive experience with commercial general liability and professional liability lines, and commercial and residential property lines. She also handles insurance agent and broker liability claims and develops training on industry best practices. She is experienced with both bench and jury trials and with appellate court argument. She is a frequent commentator, presenter and writer on emerging industry issues and technology.

Professional Background

Ms. Quintero joined Hinshaw & Culbertson LLP in September 2011. Previously she was for five years an associate at Hayes Scott Bonino Ellingson & McLay LLP, in Redwood City, California.

Ms. Quintero began her legal career in 2002 as an attorney advisor in the chambers of Judge Gerald Etchingham, Office of Administrative Law Judges, U.S. Department of Labor. She spent a year as an associate in the Law Offices of Tharpe & Howell, and from 2005-2006, Ms. Quintero was an associate in the San Jose, California office of Ropers, Majeski, Kohn & Bentley.

During law school, she was a judicial clerk in the Office of Staff Attorneys for the U.S. Court of Appeals for the Ninth Circuit.

In addition to her other law school accomplishments, Ms. Quintero graduated in the top 11 percent of her class. She was a member of the Dean’s List, and received certificates of excellence in Legal Analysis and Research and Writing, as well as the Witkins Award for Alternative Dispute Resolution. Ms. Quintero was a semifinalist in Honors Moot Court. She was the recipient of a number of the Law/Faculty Scholarships and the Eleven Easy Pieces Scholarship.

Professional Affiliations

  • Federation of Defense and Corporate Counsel, Member
  • Association of Defense Counsel (ADC), Board of Director
    • Diversity Chair, Sublaw Committee Chair (2014-2016)
    • Substantive Law Committee, Chair (2016)
    • Education Committee, Chair (2015)
    • Executive Committee, Co-Chair At Large (2015)
  • Claims and Litigation Management Alliance (CLM)
    • Extracontractual Committee, National Co-Chair (present)
    • Diversity & Inclusion Committee
    • Northern California San Francisco Bay Area Chapter
  • Defense Research Institute (DRI)
  • National Association of Women Lawyers (NAWL)
  • San Francisco County Bar Association (BASF)
  • Professional Liability Underwriting Society (PLUS)

Representative Matters

Representative examples of Ms. Quintero’s successful defense counsel include the following:

  • Secured a defense verdict in a month-long jury trial involving claims of bad faith and products liability. Secured an award of expert witness costs and fees in favor of the defendant insurer.
  • Prevailed on a motion for summary judgment involving a $900,000 claim for coverage under an additional insured endorsement.
  • Prevailed on a motion for judgment on the pleadings involving constitutional and common law claims for due process.
  • Successfully opposed a writ of certiori in the U.S. Supreme Court.
  • Prevailed challenging a complaint alleging improper use of policy proceeds under a directors and officers policy in a case involving more than 50 claimants.
  • Argued in the California Court of Appeal and prepared briefs for the successful affirmation of judgment on a motion for summary judgment in favor of an insurer.


Ms. Quintero presentations Include:

  • "New Issues In Nevada and California Law," Association of Defense Counsel conference, Squaw Valley Resort,Olympic Valley, California, June 2016.
  • "How Confidential Are Mediation Communications? You Might Be Surprised (Pitfalls for the Unwary and Tips to Avoid Them)," American Bar Association Insurance Coverage Litigation Seminar, Tucson, Arizona, March 2016.

  • "Cumis Cross Fire: Policyholder, Defense and Coverage Counsel Perspectives," 56th Annual Meeting, Association of Defense Counsel, San Francisco, California, 2015.

  • "Walk The Walk — The Ongoing Challenges of Diversity Within the Legal Profession," film by Abby Ginzberg, 55th Annual Meeting, Association of Defense Counsel of Northern California & Nevada, San Francisco, California, December 2014.  

  • "Design Professionals: Crafting A Plan For Evolving Risk," Second Annual Axis Construction Conference, San Francisco, California, October 2014. 

  • "Cumis Counsel: Current Coverage and Defense Issues," Northern California Association of Defense Counsel, Oakland, California, July 2014.
  •  "California Fair Claims Settlement Practices Regulations," at Colony Insurance Company in Greenwood Village, Colorado, October 2013.


Ms. Quintero is the author of:


Maria enjoys college football, art, action movies, creative writing and Lake Tahoe, California. She is a San Francisco Giants fan.

Community/Civic Activities

Ms. Quintero is a volunteer attorney advisor and trial advocacy teacher for the Saratoga High School Moot Court Program.


J.D., Santa Clara University School of Law, 2002; Research Editor, Santa Clara Computer and High Technology Law Journal

B.A., Science & Technology, Pomona College, 1999