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Mary Erin O'Byrne

Estate planning Attorney at Lutherville, MD

4.4   7 reviews

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About Mary

Learn Mary’s areas of practice.

Licensed for 23 years
State MD
Status Active
Acquired 1999
Updated 11/28/2022

We have not found any instances of professional misconduct for this lawyer.

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O'Byrne Law, LLC
1400 Front Avenue, Suite 303
Lutherville, MD, 21093


4.4 / 5.0
  7 customer reviews
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Posted by lisa | July 29, 2019
This review is from a person who hired this attorney.
| Hired Attorney
Very satisfied!
Mary O'Byrne worked with my husband and me to create a will, a (semi-complicated) trust for our grandson, as well as Financial Powers of Attorney, Medical Powers of Attorney and Advanced Directives. Mary was very professional, yet friendly, clear in her explanations and she answered all of our questions (we had a lot). She was super easy to talk to! Service was great. At one point we had a scheduled a phone call to ask some questions about the draft version of the trust. Mary got called out of town and another lawyer (Sage) stepped in. They asked us ahead of time if we were ok with talking to Sage or if we wanted to wait for Mary's availability. It was evident she took the time to review our case before our scheduled phone call. Both Mary and Sage were kind, patient, and the costs seemed reasonable. It feels so good to have this is complete and out of the way, and to feel 100% secure knowing we worked with such a reputable firm. I've already recommended O'Byrne Law Firm to my mom and to a good friend!
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Posted by Elwood & Jackie | June 12, 2019
This review is from a person who hired this attorney.
| Hired Attorney
Developiing a plan in support of our family estate planning and son special needs
A very professional and compassionate firm. One of the most knowledgeable firms I have met who has the capability of developing special needs and estate planning for families. Did a great job in assisting our family in addressing the present and long range needs for our son who has cerebral palsy with multiple disabilities.
Posted by PatricIa | March 11, 2019
This review is from a person who hired this attorney.
| Hired Attorney
Ms O’Byrne and her staff patiently guided us through the guardianship process from consultation to court. They were incredibly responsive to our many questions and concerns. It’s very reassuring to have that support in a sometimes stressful process.
Posted by fran | February 11, 2019
This review is from a person who hired this attorney.
| Hired Attorney
trust estate planning
I hired Mary to create a special needs trust within 1 week. she is an expert and accomplished the task beautifully. I also hired Mary to create estate planning documents. she asked pertinent questions and achieved the task quickly and at a reasonable fee.
Posted by Anne | June 11, 2018
This review is from a person who hired this attorney.
| Hired Attorney
Estate Planning/Family Consultation
Following an unexpected death, Mary O'Byrne provided both sound legal advice in regard to my new circumstances as well as my estate planning. The documents she prepared for me were considerate of my concerns and special needs. Ms. O'Byrne also met with my adult children to help explain my current situation and some difficult decisions that were necessary. Her professionalism, legal advice and concern for me, her client, helped through a most difficult time.
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Posted by Martha | June 11, 2018
This review is from a person who hired this attorney.
| Hired Attorney
Excellent care for our special needs child
Ms O'Byrne has been involved in the legal care of my son for over 20 years. She has been instrumental in the creation and maintenance of a special needs trust, providing guidance and support , and helping us to navigate the complex Medicaid requirements. She also oversaw the estate planning for us, a same sex couple, well before legal recognition of our subsequent marriage, a complex project in an uncharted legal environment. These service have been of unquestionable quality and prompt and competent responses.
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Posted by anonymous | May 14, 2018
This review is from a person who hired this attorney.
| Hired Attorney
Estate Planning
The first draft of the will was entirely opposite of my wishes. I spent two hours with Ms. O'Byrne and thought she understood what I wanted, however, the documents were wrong. Second draft, still wrong. I have sent emails with NO response. I have been passed to Sage who is "out of the office". Find a better attorney who is not so expensive and will listen.
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Response from Mary O'Byrne June 4, 2018
Thank you for your feedback. I am sorry that your experience with us was frustrating. That's the opposite of what we strive for. I invite you to contact me directly to review your concerns and to help ensure that our work on your behalf is completed to your satisfaction.
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AVVO RATING 7.3 (Very Good)


  • University of Maryland School of Law
  • JD - Juris Doctor
  • 1998
  • University of North Carolina, Chapel Hill
  • MA - Masters
  • 1985
  • Yale University
  • BA - Bachelor of Arts
  • 1978


  • Appointed to MD Governor's Task Force on ABLE Act
  • Task force member
  • 2015 - 2015
  • Special Needs Alliance
  • Board of Directors
  • 2014 - 2018
  • National Alliance for Mental Illness
  • Board of Directors
  • 2013 - 2017

Honors and Awards

  • Chapter Member of the Year
  • NAELA MD/DC Chapter
  • 2011

Speaking Engagements

  • Legal Topics Series
  • Legal Planning for Individuals and Families with Disabilities
  • 2015

Attorney endorsements

Received (2)
Given (1)
Endorse Mary
Medicaid and medicare Attorney | Jul 13
Relationship: Other
"Mary is an undisputed expert in her field and that is difficult to uphold considering that the rules and regulations for Medicaid Eligibility and Planning are constantly changing. I have known her for quite some time through our mutual affiliation with national organizations and have always admired the passion she exhibits for her field of practice."
Elder law Attorney | Apr 02
Relationship: Fellow lawyer in community
"Are you looking for a capable and knowledgeable lawyer with a reputation for really knowing her practice area? Then you are looking for Mary O'Byrne. She is nationally recognized as an expert on disability benefits and planning for family members with special needs -- and she is hard-working, capable and just plain nice."
Medical malpractice

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Lutherville Estate planning Lawyer Mary Erin O'Byrne
Mary Erin O'Byrne
Estate planning Attorney
Lutherville, MD
Licensed for 23 years