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Kathleen Marie McClernan

Family Attorney at Leonardtown, MD

4.5   6 reviews
  • Licensed for 15 years
    State MD
    Acquired 2007
    Active No misconduct found

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

About Kathleen

Learn Kathleen’s areas of practice.

Kathleen McClernan is a partner in Williams, McClernan, & Stack LLC. We're one of the only woman-owned law firms in the area. We're dedicated to supporting our community.  We offer the kind of personalized legal support and guidance you won’t get from larger firms. When you retain Williams, McClernan, & Stack LLC, our lawyers will meet with you to discuss the specifics of your situation and determine the best course of action. We’ll work with you every step of the way to make sure you’re getting effective legal representation.

She is the first female recepient of the Leadership in the Law Award, Generation JD in all of Southern Maryland. She was previously an Associate Attorney at a private law firm in 2013 after 6 years with the Office of the Public Defender. She served St. Mary's County as an Assistant Public Defender from 2007-2011 where she defended over 4,000 criminal and traffic cases in both the District and Circuit Courts. In 2011 she transferred to Washington County where she defended major felony cases (including murder, robbery, burglary, child abuse, sex offenses, etc).

Ms. McClernan is a graduate of the University of Arizona, a 2007 graduate of the University of Baltimore School of Law, and was admitted to the Maryland Bar in December of 2007. She is a current member of the Maryland State Bar Association, the St. Mary's County Bar Association, and Phi Alpha Delta Law Fraternity International. She is the former President for the St. Mary's County Bar Association and the current Mock Trial Coach for Leonardtown High School. She sits on the Board of Directors for the Center for Children and Community Mediation of St. Mary's County.

Ms. McClernan has completed courses in the handling of forensics, DNA, arson investigation, child abuse and safe examinations, mental health and competency issues, and social media issues.


Contact Kathleen

Williams, McClernan, & Stack LLC
22715 Washington Street, Suite 201
P. O . Box 188
Leonardtown, MD, 20650


4.5 / 5.0
  6 customer reviews
5 Star
4 Star
3 Star
2 Star
1 Star
Posted by Kelly | October 25, 2016
This review is from a person who hired this attorney.
| Hired Attorney
Professional and Personal
We hired Kathleen to develop our wills, advanced directives and trust. As a young family, we were not clear what details we needed to include and what was expected of us. Kat was patient, direct, and extremely helpful to us. She made the process relatively easy and helped us to make informed decisions about our future. Her personal service and professional attitude impressed us and we would recommend her to anyone considering employing her services.
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Posted by CarrieAnn | October 25, 2016
This review is from a person who hired this attorney.
| Hired Attorney
Excellent Experience
As new parents to a young daughter my husband and I felt that it was time to put in writing our wishes should anything happen to the two of us. We employed Ms. McClernan to create and guide us through the process of creating a will, power of attorney, and advance directive. Ms. McClernan provided excellent information in a timely fashion and did not hesitate to answer each and every one of our questions and concerns. My husband and I were extremely pleased with the service Ms. McClernan provided and would not hesitate to hire her again.
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Posted by Kristen Dorn Kennedy | June 4, 2015
Divorce Lawyer.
Over the course of the past year, Ms. McClernan has become a trusted advisor and ally. She not only assisted me through every step of my separation and divorce, she worked tirelessly to ensure I received the rulings I deserved on both custody and the divorce. She was the perfect balance of calm and steady to my emotional tumult. I couldn't recommend her more highly.
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Posted by anonymous | October 28, 2014
Finally a Lawyer on my side!!!!!
She worked hand in hand with me to determine my rights as a parent and what I deserved. She took all of my suggestions and implemented as well as she could. She truly understood the struggle I was going through trying to receive my child support and enforcing. She fought for me and my child as hard as she could, she never stopped. I would recommend her to anyone that was in my position she truly cares about the client and making things right.
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Posted by anonymous | September 29, 2013
Very knowledgeable, helpful, and responsive.
We contacted Kathleen regarding an incident that our child was involved in at St. Mary's College of Maryland. She was clearly very familiar with the college's procedures in addition to the legal issues related to the situation. Kathleen spent time on the phone with us and had separate conversations with our child. She calmed everybody down and gave some very specific, and good, advice as to what we should do when (if) the time came to speak to the authorities. In the end nobody pursued anything with anybody, and Kathleen treated everything as a free consultation, but we wouldn't hesitate to contact her again in the future should we have a similar need.
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Posted by anonymous | October 27, 2014
Not on my side
My experience proves that when you hire a lawyer, they're only on your side for about as long as it takes to take your money. Told me wrong court house, made a clandestine deal with the arresting officer before hearing without my knowing, curt and even angry sounding over phone during follow up call. Smiling picture is misleading.
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  • Retainer Sometimes
Payment methods
Cash, Check, Credit Card


AVVO RATING 10.0 (Superb)

Work Experience

  • Owner
  • The Law Office of Kathleen McClernan, LLC
  • 2016 - Present
  • Associate Attorney
  • The Law Office of D. Anne Emery & Associates, LLC
  • 2013 - 2015
  • Assistant Public Defender
  • State Of Maryland Office Of The Public Defender
  • 2007 - 2013


  • University of Baltimore School of Law
  • JD - Juris Doctor
  • 2007
  • University of Arizona
  • BA - Bachelor of Arts
  • 2004


  • Center for Children
  • Board of Directors
  • 2016 - Present
  • Community Mediation of St. Mary's County
  • Board of Directors
  • 2016 - Present
  • Leadership of Southern Maryland
  • Alumni
  • 2015 - Present
  • Women's Bar Association of Maryland
  • Board Member
  • 2015 - Present
  • Maryland State Bar Association
  • Member
  • 2007 - Present
  • St. Mary's County Bar Association
  • Member
  • 2007 - Present
  • Phi Alpha Delta
  • Alumni
  • 2002 - Present
  • St. Mary's County Bar Association
  • President
  • 2014 - 2016
View all associations

Languages Spoken

  • English

Honors and Awards

  • 10 Best
  • American Institute of Family Law Attorneys
  • 2017
  • Leadership in Law
  • Daily Record
  • 2016
  • Top 40 Under 40
  • National Trial Lawyers
  • 2014

Attorney endorsements

Received (2)
Given (2)
Endorse Kathleen
Family Attorney | Mar 02
Relationship: Worked together on matter
"I had a case with Kathleen a few years ago in St. Mary's County. She is an excellent attorney and did a great job for her client. I would highly recommend her to anyone looking for a family law attorney."
Criminal defense Attorney | May 13
Relationship: Co-worker
"Ms. McClernan's professional reputation is well deserved as she zealously advocates for her clients regardless of their background or legal issue. She is a true litigator who can work any courtroom however, she can mediate a settlement when in her client's best interests."
Leonardtown Family Lawyer Kathleen Marie McClernan
Kathleen Marie McClernan
Family Attorney
Leonardtown, MD
Licensed for 15 years