also known as Kaitlyn Hynes, Katie DiFerdinando; Kaitlyn E. DiFerdinando
Katie Hynes DiFerdinando is a Maryland attorney focusing on complex guardianship, elder law, adoption, and fiduciary litigation, as well as high-conflict family law and appellate advocacy. She is known for her thorough preparation, strategic judgment, and ability to focus courts and opposing counsel on the issues that matter most.
She represents clients in contested guardianship proceedings, fiduciary disputes, high-conflict custody matters, alimony and child support litigation, contested adoption and paternity matters, protective order proceedings, and cases involving allegations of abuse, neglect, and financial exploitation of vulnerable adults and children.
Katie is recognized for her practical, solution-oriented approach to mediation and settlement, helping clients resolve disputes efficiently while protecting their long-term interests. When trial is necessary, she brings disciplined advocacy and careful record development to every case.
Clients value Katie for her candor and steady guidance. She is committed to providing honest, realistic assessments of the strengths, risks, and likely outcomes of each matter so that clients are fully informed and confident in their decisions, whether resolving a case through settlement or proceeding to trial.
She also handles appellate matters arising from complex guardianship, estate, and family law cases, ensuring continuity of representation and effective issue preservation.
Katie earned her Juris Doctor from Elon University School of Law and her master’s degree from the University of Baltimore. She is admitted to practice in Maryland and the United States District Court for the District of Maryland. She has been recognized for her professional achievement and peer respect through selection to Super Lawyers Rising Stars.
Outside the courtroom, Katie is actively involved in professional education and leadership. She regularly teaches continuing education courses for the Carroll County Realtors Association and supports organizations focused on empowering and advancing women.
Outside of her practice, Katie enjoys spending time with her family and visiting Walt Disney World whenever possible. A Maryland native, she remains engaged in the legal and local community.
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Chat withState: Maryland
Acquired: 2018
No misconduct found
9841 Broken Land Parkway, Suite 210, Columbia, MD, 21046
6 Client Reviews
Showing 1 - 2 of 2 reviews | Practice Area Knowledge
Posted by Denise | September 19, 2019 | Hired Attorney | Probate
Great service
Katie helped me close out my mother’s estate after we found a bank account that I knew nothing about. She’s extremely efficient, kept me informed all along the way and made it a very simple process.
Posted by Ashley | June 04, 2019 | Hired Attorney | Estate Planning
She’s the best!
Katie was so prepared and thorough when discussing and planning our estate and guardianship of our child. She thought of every detail and provided suggestions when we were conflicted making certain decisions. She made sure we understood what would happen to our child and estate in the event of our d...
"I had the pleasure of working with Kaitlyn on an estate matter with some unique issues. Kaitlyn’s knowledge and expertise in probate and real estate matters were extremely helpful in navigating the complexities involved; her clients are lucky have her in their corner, and I hope to work with her again."
"Katie is a professional, hard-working, personable attorney. I highly recommend her for all of your estate planning and probate needs."
"Katie is a bright attorney who is diligent in her work and extremely passionate about what she does. I hired her for these reasons and I know that she will do great things in her legal career."
Probate lawyer
2026
Rising Star, SuperLawyers
2025
Rising Star, SuperLawyers
2024 - Present
Associate Attorney, Leffler, Bayoumi & Oliver, LLC
2023 - 2024
Associate Attorney, Frame and Frame
2020 - 2023
Associate Attorney, Lewicky, O’Connor, Hunt and Meiser
2018 - 2020
Attorney, Estates and Trusts Division Head, Nager Law Group, LLC
2013 - 2017
Legal Assistant, Law Firm of Abigail E. Peoples, PLLC
2025 - Present
Howard County Women's Bar AssociationMember at Large
2022 - Present
Little Friends of Grace PreschoolBoard Member
2020 - Present
Howard County Bar AssociationMember
2018 - Present
Maryland State Bar Association, Estate and Trust Law SectionMember
2018 - Present
Carroll County Realtor AssociationAffiliate Member
2018 - Present
Maryland State Bar AssociationMember
2008 - Present
Alpha Sigma Tau SororityMember; Chapter President ('09)
Judgment in favor of Client
2016
JD - Juris Doctor
2013
MA - Masters Legal and Ethical Studies
2011
BA - Political Science and History
2007
Diploma
2025
Bridging the Gap: Estate Planning for Family Law Attorneys
2020
Maryland Realtor education on representing sellers with estate and inherited real property
2019
The Superguide to Probate
2018
Estate Planning: Own Your Tomorrow
English
Legal Answers
MD register of wills says you cannot be an executor if convicted of a serious crime. how do you show just cause? ?
21 Aug 2020
If my husbands has died and it is not necessary to open and estate, how do I sign the title over to someone else?
15 Aug 2020
Reply Response to Motion - Circuit Court?
17 Aug 2020