Thornton, Biechlin, Segrato Reynolds & Guerra, L.C.

Law Firm in McAllen, TX

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Peer Rating 4.9 of 5

About This Firm

The Thornton Firm is primarily a litigation firm concentrating in the preparation and defense of civil litigation in state and federal court throughout Texas. The firm's founding partners began practicing together in San Antonio, Texas, more than 30 years ago. With additional offices in Austin and McAllen, the firm is able to serve the needs of its clients throughout Central and South Texas, and it works on behalf of clients in selected cases, throughout the state.

The Thornton Firm is dedicated to personal service and attention to individual needs of clients. We do not offer a standard legal product. We work with each client to customize our legal services to meet their specific and often unique needs. We believe that this approach to the practice of law enhances our ability to create and foster long term relationships with our clients. This client centered approach to the practice of law involves more than routinely preparing and trying every case we are assigned. We coordinate efforts with individual clients to effectively manage the legal fees and related expenses associated with the litigation process. Should litigation be the appropriate strategy for our client, we prepare and litigate vigorously.

We take pride in the reputation that the firm has developed in Texas and throughout the country. The firm is proud to have the highest rating given by Martindale Hubble Directory of Attorneys which identifies and evaluates all lawyers and law firms within the United States based upon legal ability, ethical standards and diligence. Attorneys in the firm hold memberships in the Texas Association of Defense Counsel, Defense Research Institute, Federation of Insurance Counsel, International Association of Insurance Counsel, American Board of Trial Advocates, Federal Bar Association, Fifth Circuit Bar Association and numerous other local associations.

The Thornton Firm offers services from its six major practice groups, including business and insurance litigation, professional liability, labor and employment matters, health law, workers' compensation and construction law. The firm employs an experienced and stable support staff, including a registered nurse.

The firm is also a Member of The International Society of Primerus Law Firms. Primerus is an international alliance of law firms screened for their adherence to high ethical standards, excellence of work product, reasonable fee structure and civility. A prospective Primerus law firm's clients, peers and members of the judiciary participate in the strict screening process conducted by Primerus as a condition of membership. The endorsement by Primerus, an independent third party, is considered the five star rating of law firms. Law firms must continually exhibit the Primerus standards to remain a member.

The Thornton Law Firm is also a member of The Council on Litigation Management. This elite organization is comprised of over 100 insurance executives who are responsible for selection of defense counsel. The Council has a very limited number of members, and membership is only attained upon nomination by a Fellow of The Council.

The firm is also a member of The Professional Lines Attorney Network (PLAN),a national organization of highest rated, independent law firms specializing in coverage and defense of professional lines cases: Errors & Omissions; Directors & Officers; Coverage/Bad Faith; Labor & Employment; Fiduciary / ERISA; and Financial Institutions. PLAN endeavors to be the preeminent resource for claims professionals. PLAN member firms are committed to providing high-quality, innovative and cost-effective representation to its clients. Additionally, through its educational programs, PLAN Alert emails and other resources, PLAN delivers relevant information about recent professional lines cases, emerging trends, strategies and legislation.

Areas of Law

  • General Civil Practice. Trials and Administrative Practice before State and Federal Court
  • Departments and Agencies.

    Administrative Law

  • Appellate Practice
  • Commercial Litigation
  • Health Care
  • Insurance
  • Automobile Liability
  • Commercial Insurance
  • Extra Contractual Insurance Claims
  • Fire Insurance Subrogation
  • General Liability
  • Insurance Adjuster Liability
  • Insurance Agents and Brokers Errors and Omissions
  • Insurance Coverage
  • Personal Liability
  • Property Damage
  • Subrogation
  • Uninsured and Underinsured Motorists
  • Labor and Employment
  • Legal Malpractice Defense
  • Legal Professional Liability
  • Insurance Defense
  • Architectural Law
  • Construction Claims
  • Construction Defects
  • Construction Equipment Liability
  • Construction Accidents
  • Contractors Liability
  • Scaffolding Liability
  • Environmental Insurance Defense
  • Premises Liability
  • Inadequate Security
  • Private Security Litigation
  • Products Liability
  • Drug and Medical Device Litigation
  • Engineering Products Liability
  • Environmental Products Liability
  • Firearms Litigation
  • Products Liability Defense
  • Professional Liability
  • Accountants Malpractice
  • Agents and Brokers Errors and Omissions
  • Appraisers Liability
  • Architects and Engineers Errors and Omissions
  • Architects and Engineers Malpractice
  • Directors and Officers Errors and Omissions
  • Professional Errors and Omissions
  • Professional Discipline
  • Surveyors Malpractice
  • Motor Carrier Defense
  • Truck Accidents
  • Workers Compensation Appeals
  • Workers Compensation Defense
  • Workers Compensation Self Insurance
  • Workers Compensation Subrogation
  • Dram Shop/Liquor Liability.

Peer Rating


Average Peer Rating

Based on this firm's rated lawyers
4.9 out of 5.0

Legal Knowledge
Analytical Capabilities
Communication Ability
Legal Experience

  • Lawyers rated at this firm meet very high criteria of general ethical standards
Senior Partner
5.0 out of 5.0
Junior Partner
4.4 out of 5.0
Senior Partner
4.9 out of 5.0

People at This Firm

Lawyer Name:
Area of Law:
Junior Partner
Senior Partner
Senior Partner
Junior Partner

Firm Details

Year Established


Firm Size


Payment Information
  • Fixed Hourly Rates
  • Fixed Fees Available


Partnership Information

A Professional Limited Liability Company

State Bar Summary

All Members and Associates are members of the Texas Bar Association.

Law Firm Affiliations



ACE USA, Ace American Insurance, AI Recovery, AIU Holdings, ARAMARK Corporation, Arch Insurance, Berkley Specialty Underwriting Managers, Black & Decker, Bridgeway Medical, Brit Tex Home Health, Broadspire, Cambridge Integrated Services, Chubb Executive Risk, City of Odessa, City of Plano, Clear Channel World Wide, CNA Insurance Companies, Coleman Company, Coregis Group, CUNA Mutual Group, DPIC Insurance, ESIS, Inc., esurance, Farmers Insurance Group of Companies, Employers Reinsurance Corp., Encompass, Federal Insurance, Fireman's Fund Specialty Insurance, GAB Robins, Gallagher Bassett Services, Inc., Great American Insurance Companies, Harris County, Hidalgo County, Houston Casualty Company, Houston Independent School District, Hudson Insurance, Hyatt Corporation, Innovative Risk Management, James River Insurance Company, K&K Insurance, Kemper Insurance Companies, Lancer Claims Services, Lexington Insurance Company, Liberty Mutual, Medical Protective Company, The Medical Team, Merastar Insurance Company, Morningside Ministries, OneBeacon, Quest Diagnostics, Pearland Independent School District, Permian Claims, Randolph Brooks Federal Credit Union, Republic Insurance, Rio Grande City Independent School District, Risk Enterprise Management, Safeco, Safety Insurance, San Antonio Livestock Exposition, Sedgwick Claims Management, Southern Steel, Specialty Claims Management, L.L.C., Spectrum Healthcare Resources, St. Paul Travelers Insurance Company, Star Insurance Company, State Farm Insurance Companies, SwissRe Insurance, Tartan Textile Services, Team Health, Texas Med Clinic, Union Standard, United States Liability Insurance, Unitrin, Valero, Western Litigation Specialists, Westport Insurance, XL Insurance and Zurich.

Contact Information

Firm Address

Thornton, Biechlin, Segrato Reynolds & Guerra, L.C.
418 East Dove Avenue,
McAllen, TX 78504-2240






Send email to Thornton, Biechlin, Segrato Reynolds & Guerra, L.C.

Office Information
 418 East Dove Avenue,
McAllen, TX 78504-2240


Office Hours
08:00 AM- 05:00 PM
08:00 AM- 05:00 PM
08:00 AM- 05:00 PM
08:00 AM- 05:00 PM
08:00 AM- 05:00 PM

Other Offices
San Antonio Office
100 N.E. Loop 410, Suite 500 San Antonio, Texas
Austin Office
912 South Capital of Texas Highway, Suite 300 Austin, Texas
San Antonio Office (Main Office): One International Centre, 100 N.E. Loop 410, Suite 500, 78216-4741. Telephone: 210-342-5555. Facsimile: 210-525-0666;
Austin Office: 912 S. Capital of Texas Highway, Suite 300, Austin, TX 78746-5242; Telephone: 512-329-6666. Facsimile: 512-327-4694.

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