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About me

Our firm's primary focus is family security using our combined 35+ years of experience and the tools of estate planning and defensive estate planning (asset protection) to accomplish our client's goals.  I have represented as many as 3 generations in many of my clients' families doing legacy planning.  Early in my law career  I was involved in oil and gas law but when I had my children I switched to family law.  Since I began focusing on estate planning 25+ years ago - I have been able to use my previous legal experiences to bring an understanding of family dynamics, familial wealth, especially Texas'  large landowners and the importance of families of all kinds, to all of my clients estate planning.  I am  BOARD CERTIFIED in estate planning and probate law with over 25 years of experience.  I come from a large family with many diverse relationships that bring a very personal understanding of complex familly issues.  Being a landowner - raising horses, longhorns and my understanding of oil and gas law makes me appreciate all that is Texan. 

Giving back is important and I serve in many legal organizations as well as on boards in Austin that give back to the community including the Dell Children's Womens Trust, LTLov  and as an advisor to many more including Dream a Dream Therapeutic Horsemanship, Africa's Promise Village and others. 

I have a large extended family including 3 children, a son in law, horses, longhorns, chickens, a rescued squirrel, 3 cats and 4 dogs.


Practice areas


  1. Estate Planning: 60%
    35 years
  2. Prenuptials: 10%
    35 years
  3. Corporate: 10%
    35 years
  4. Trusts: 10%
    35 years
  5. Probate: 10%
    35 years



Fixed (sometimes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

7 total 

Are you an attorney? Endorse this lawyer

  • Steven John Clausen

    I endorse this lawyer. Erin is very knowlegeable in estate planning and related practice areas as well as developing practical solutions to difficult problems.


    Steven Clausen Probate Attorney
    Relationship: Fellow lawyer in community

  • Stephen Joel Livens

    I have known Erin for the past 15 years. We have worked together on several legal projects and she has always been an outstanding contributor. She possesses both the intellect and character that is required to be an outstanding lawyer. I highly recommend her to anyone seeking estate planning services.


    Stephen Livens Elder law Attorney
    Relationship: Fellow lawyer in community

Contact info

Thrash Law Firm

3 Lakeway Centre Court, Suite 200
Austin, TX, 78734


LAEligible to practice law198308/05/2016
TXEligible To Practice In Texas 198208/17/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Five Star Wealth ManagerTexas Monthly2013
2011 Five Star Wealth ManagerTexas Monthly Magazine2011
Community PartnerAustin American Statesman2010
Board Certification - Estate Planning and Probate LawTexas Board of Legal Specialization2005
VolunteerWith Nici's Heart Foundation2004
Work experience
TitleCompany nameDuration
PartnerThrash Law Firm2003 - Present
Director of DevelopmentMary Bird Perkins Cancer Center1993 - 1994
Teacher-ProfessorSPI1986 - 1992
Author-PublisherMM&E Publications1986 - 1990
AssociateStubbeman McRae Sealy Loughlin & Browder1986 - 1987
AssociateWilson & Johnson, P.C.1983 - 1986
Association namePosition nameDuration
Africa's Promise TrustDirector2010 - Present
Dell Children's Womens TrustN/A2009 - Present
Dream a Dream Therapeutic HorsemanshipN/A2008 - Present
LTLovN/A2008 - Present
Women's Chamber of CommerceN/A2007 - Present
Komen Race for the CureTeam leader2006 - Present
Texas Forum - LegalDirector2006 - Present
Lakeway Chamber of CommerceNo Value2006 - Present
College of the State Bar of TexasN/A2003 - Present
Louisiana Bar Associatioin - LegalN/A1983 - Present
State Bar of Texas - LegalN/A1982 - Present
Legal cases
Case nameOutcome
See all legal cases 
Publication nameTitleDate
BlogEstate Tax Changes - A Rollercoaster2011
NBITax Planning Trusts2011
NBIEthics when serving as a Fiduciary2011
Estate Planning Strategies, Wealth CounselQPRT (Qualified Personal Residence Trusts)2008
School nameMajorDegreeGraduated
Louisiana State University, Paul M. Hebert Law CenterLawJD - Juris Doctor1982
Speaking engagements
Conference nameTitleDate
Womens AssociationWomen - Take the Power2011
Trusts 101Advanced Trust, Ethics2011
Client Education EventTax Law Changes in 20112011
UT - Certified Financial Planning CourseEstate Planning Basics2010
Monthly meetingSuccessfully Transferring Assets for the GenerationsN/A