Katie Sager has dedicated the entirety of her legal career exclusively to marital and family law, estate and trust litigation, and guardianship administration and litigation. She has over a decade of experience representing clients in a variety of family and marital law matters, including, divorce, modification and enforcement of marital settlement agreements and parenting plans, establishment of timesharing and parenting plans, alimony, child support, prenuptial and postnuptial agreements, domestic violence, dependency defense, estate and trust litigation and guardianship litigation and administration. In addition to litigation, Katie also represents clients in appeals of their family or marital law final judgments and orders.

Katie also has experience serving as a Guardian Ad Litem in high-conflict family law litigation. A Guardian Ad Litem or “GAL” is a neutral third party appointed by the court to act as a next of friend of the child, investigator or evaluator, to advance the best interest of the child or children in a particular care and to make recommendations related thereto the Court.

Katie’s legal experience, professionalism and effectiveness as legal counsel is regarded amongst her peers and clients. Katie has earned the distinction of being named a Florida’s Super Lawyer Rising Star every year, since she first earned the distinction in 2019. She has also earned the AV Rating in the Martindale-Hubbell Legal Directory, which recognizes pre-eminent designation in Family Law by her colleagues in professionalism and experience. Katie has a 10.0 rating on Justia.com and 9.9 rating on Avvo.com, based upon her legal experience and knowledge, client reviews and peer endorsements.

Katie earned her Bachelor of Arts in English, with a concentration in writing, from Florida State University. She earned her Juris Doctor from St. Thomas University School of Law. Katie finished in the top 5% of her graduating class at St. Thomas University School of Law and earned the prestigious academic honor of Magna Cum Laude.

America’s Most Honored Lawyers, 2023
America’s Most Honored Lawyers – Top 1%, 2021-2023
America’s Most Honored Lawyers – Top 10%, 2020

Avvo Superb Top Rated Lawyer, 2024

Martindale-Hubbell’s 10th Year Anniversary, 2021
Martindale-Hubbell’s AV Preeminent Attorney, 2019-2024
Martindale-Hubbell’s AV Preeminent Attorney – Judicial Edition, 2020-2023
Martindale-Hubbell’s AV Preeminent Lawyers.com, 2020-2023

Miami Herald’s South Florida’s Top Lawyers, 2024

Florida Super Lawyer, Rising Star, 2019-2024

South Florida Best Lawyers, Ones to Watch, 2023 and 2024

Top Attorneys: Florida’s Outstanding Young Lawyers, 2019
Top Attorneys: Young Rising Attorneys in Florida, 2020
Top Attorneys & Rising Stars in Florida, 2021
Top Attorneys in Florida, 2022-2023


Spotlight On Pro Bono Attorney Katie Sager, Dade County Legal Aid Society, 2022.

Professional & Bar Association Memberships

  • The Florida Bar

    Member Since: 2011

    Family Law Section

  • Dade-County Bar Association

    Member Since: 2011

    Young Lawyers Division

  • Coral Gables Bar Association

    Member Since: 2011


  • St. Thomas University School of Law - J.D. - 2011

    Honors and Awards: JD Magna Cum Laude, Dean's List, Book Award in Legal Research and Writing, Book Award in Business Associations, Book Award in Trial Advocacy Practice, Book Award in Florida Constitutional Law, and Miami Division of Criminal Defense Lawyers 2011 Top Litigation and Legal Writing Student at St. Thomas University School of Law

  • Florida State University - B.A. - 2007

Client Reviews

Christy Hertz helped me tremendously with co-parenting issues concerning my daughter. She was fair, listened to me and gave me great advice. She was honest with me, and I have great respect for her because of it. Ultimately, my daughter's father recognized what he needed to do for our daughter's...

K. D.

Christy’s polished demeanor is professional and highly effective. She ALWAYS has a plan and it's ALWAYS the correct one. In representing me from the divorce consultation to the final agreement, her practical, point-blank approach is a well appreciated one. If you are looking for the best attorney to...


This is a great firm. Christy and her colleagues represented us through a four year, highly complicated case. We were well represented throughout the whole process. The firm is professional, knowledgable, experienced, and highly effective. These are thorough, hard working attorneys who are competent...


Katie made me feel comfortable and confident. She follows through and is very patient to answer any questions you may have. If you're feeling nervous she assures you everything will be ok because she will be there with you every step of the way. Katie is very detailed and available at all times. I...


Katie, Helped me with my modification for child support. Being in the military it is very complexed dealing with pay and state laws but Katie guided me the whole way and made the process seem easy. I highly recommend Katie she is very knowledgeable and I felt I could trust her to look for my best...


Over 30 Years of Experience

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