Heather Tessmer

Board-Certified Attorney • Owner • Mediator

Tessmer Law Firm, PLLC is owned and operated by Heather Clement Tessmer, attorney at law. She has over 20 years of experience practicing law. Heather graduated from St. Mary’s University Law School and began her career as an attorney in 1999. In 2001 she relocated with her family to San Angelo, Texas, where she opened her own office. In 2005, Heather moved back to the San Antonio area, opening her first office in Fair Oaks Ranch, Texas. Since 2005, Tessmer Law Firm has been continuously growing and is now headquartered at the Northwest Center building in San Antonio, Texas. Known for her edgy “Ever Argue With A Woman?” ad campaign, Heather offers legal services statewide and is board-certified in Family Law and a Fellow of the American Academy of Matrimonial Lawyers (AAML). Heather Tessmer serves her community through associations including but not limited to The Boysville Home and Shelter, Kendall County Women’s Shelter, Eva’s Heroes, and the Boerne Education Foundation. When it comes to her success in the legal field, her wall of recognition is never-ending.

Attorney, Admitted 1999, Texas

Texas Board of Legal Specialization, Board Certified – Family Law, 2016

American Academy of Matrimonial Lawyers, Fellow

Texas Bar Foundation-District 10, Fellow

  • Manage General Legal Practice in Family Law, Personal Injury, Medical Malpractice, Estate Planning and Probate
  • Implement EOS system
  • Train Associate Attorneys
  • Oversee Employees
  • Coordinate Firm Marketing
  • Interview New Clients
  • Handle Appellate proceedings successfully
  • Mediate Civil and Family Law cases


Tessmer Law Firm, P.L.L.C., San Antonio, Texas, Owner, 2005 – present

Law Offices of Heather Clement Tessmer, San Angelo, Texas, Owner, 2002 – 2005

St. Mary’s University School of Law, San Antonio, Texas  J.D., May 1999
     Associate Editor, St. Mary’s Law Journal
     Women’s Law Association
     Phi Delta Phi Honor Society
     Dean’s List

Angelo State University, San Angelo, Texas
     B.B.A. Marketing, August 1989
     Dean’s List

College of the State Bar of Texas, 2009 – Present
     Maintaining at least 30 hours of CLE

  • Changes in the Rules (2021)
San Antonio Paralegal Association, Presenter
  • Order Amending Texas Rules of Civil Procedure (2020)
Kendall County Bar Association, Presenter
  • Everything to Know About Estate Planning (2020)
Alamo Executives Association Breakfast, Presenter
  • Covering Your ASSets (2019)
Alamo Executives Association Breakfast, Presenter
  • Long Term Care, Estate Planning and Health Care Panel (2018)
Presenter and Participant on professional panel of representatives
  • Ten Myths of Family Law (2018)
National Association of Female Executives, Presenter
  • Divorce Workshop for Women (2017-Present)
  • San Antonio MD News article (2017)
Don’t Settle for AMATEURS!
  • San Antonio MD News article (2017)
Estate Planning – It’s Not for the Faint-Hearted
  • MABA’s 2nd Annual “Building a New or Better Practice” (2017)
Lessons Learned When Going Solo – panelist
  • San Antonio Man Magazine (2013)
Tessmer Tips – How to Be a Great Client
  • 2021, 2019 Best Places to Work in San Antonio by the San Antonio Business Journal, Multiple time recipient
  • 2021 Women’s Leadership Award by San Antonio Business Journal
  • 2021 Featured by Women in Law Section of San Antonio Women’s Magazine
  • 2020 Featured by San Antonio Magazine’s “San Antonio’s Top Attorneys” in Family Law
  • 2020 Voted Top Family Law Attorney by A. Scene Magazine
  • 2019 Featured by The Docket Magazine
  • 2019 Featured by Kendall County Women Magazine
  • 2019 Feature Guest on Daytime at 9 TV Segment
  • 2018 Featured by Kendall County Women’s Magazine
  • 2018 Featured by NSIDE Business Magazine
  • 2018 Greater Boerne Chamber of Commerce Businesswoman of the Year
  • 2016 Entrepreneurial Spirit Award Nominee, National Association of Women Business Owners
  • 2015-Present Texas Super Lawyers
  • 2015 Most Improved Company, The Alternative Board
  • 2014 Outstanding Lawyer Award, San Antonio Business Journal
  • 2014 Brenda Vickery Johnson Award for Small Business, Nominee, San Antonio, Chamber of Commerce
  • 2014 Featured by San Antonio Business Journal
  • 2014 Featured by San Antonio Woman Magazine
  • 2014 Lawyer Plays Up Stereotype in Billboard Ads, San Antonio Business Journal
  • 2014 The Case for Female Lawyers, San Antonio Woman Magazine
  • 2014 Outstanding Lawyer Awards, San Antonio Business Journal
  • 2013 CJP Volunteer of the Month – Just Take One, Subpoena Magazine
  • 2013 Volunteer of the Month, June, Community Justice Program
  • 2013 Businesswoman of the Year Nominee, Greater Boerne Chamber of Commerce
  • 2013-Present Best Lawyer, SA Scene Magazine
  • 2013 Most Improved Company and Most Interesting Member, The Alternative Board
  • 2013 Graduate, Leadership Boerne
  • 2012 Tessmer Lays Down the Law, Hill Country Weekly
  • State Bar College
  • Pro Bono College
  • Alamo Area Mediators Association
  • American Academy of Matrimonial Lawyers, Fellow
  • American Bar Association
  • Bexar County Women’s Bar Association
  • Collaborative Divorce San Antonio
  • Comal County Bar Association
  • Federal Bar Association
  • Hays County Bar Association
  • Kendall County Bar Association
  • Kendall County Women’s Bar Association
  • LRIS
  • Member of Northern, Eastern, Southern and Western District Federal Courts
  • Mexican American Bar Association of San Antonio
  • San Antonio Bar Association
  • San Antonio Bar Family Law Section and Association
  • San Antonio Bar Foundation
  • San Antonio Family Lawyers Association
  • San Antonio Hispanic Chamber of Commerce
  • Mary’s University School of Law Alumni Board
  • State Bar of Texas
  • Texas Academy of Family Law Specialists (TAFLS)
  • Texas Bar Association
  • Texas Bar College
  • Texas Bar Foundation-District 10, Fellow
  • Texas Council on Family Violence
  • Texas Family Law Foundation
  • The Fellows of the American Bar Foundation
  • Texas Trial Lawyers Associations (TTLA)

(210) 368-9708


San Antonio & Boerne