About
Us
The Adelphi Group (TAG)
With deep family roots from Greece, when sisters Marie Sprowl and Katie Monroe started their law firm in early 2022, the word “Adelphi”, connoting “sister” or “brother” in Greek was more than just a name. Serving our fellow “brothers and sisters” well will always be our main focus and the driving force behind the decision to start our own firm.
We believe strongly in community, connection and justice. We’ve coupled over decades of experience and complimenting skill sets to bring you unparalleled service, true compassion and aggressive representation to help resolve your insurance claim disputes.
With over a decade of legal experience, Marie M. Sprowl started The Adelphi Group (TAG) in early 2022. She spent the first half of her legal career practicing in the area of family law, handling complex divorces, child custody and paternity matters. As a family law attorney, Marie was a zealous advocate for her clients and helped hundreds of families navigate the legal system through challenging times. She has since transitioned that same client focused humility, hard work and litigation experience to her clients who have been wrongfully denied coverage under their insurance policies.
Marie graduated magna cum laude from Florida State University and earned a Bachelor of Science Degree in Finance and Business Management. During her time at FSU, Marie worked as a Teaching Assistant in the College of Business, served as Panhellenic Delegate for Pi Beta Phi Sorority and was a member of the Varsity Swim & Dive team. Thereafter, Marie accepted an academic scholarship to attend Barry University School of Law in Orlando, where she graduated cum laude in 2011. While at Barry, Marie earned several Book Awards, served as Research Assistant for the Academic Dean and as a Teacher’s Assistant for Legal Research & Writing. Throughout her law school career, Marie also worked as a Judicial Assistant to the Honorable Judge Alan Dickey, Circuit Judge in Seminole County.
Marie is a busy member of her community and enjoys volunteering for non-profit organizations. She’s done extensive work with our local Legal Aid Foundation and Teen Parent Program around Central Florida. She and her family are also very active members at their church in downtown Orlando.
Marie resides in Maitland with her husband and their three children, a set of boy/girl twins and a little sister, all active in sports who keep her running all over the state of Florida. In her rare free time, she enjoys running, traveling and boat days, but for her, nothing beats a family beach day!
Marie’s passion for connecting with her clients, coupled with her experience in the courtroom and attention to detail set her apart from others in the industry. She started The Adelphi Group to bring unrivaled service and connection to her clients as they maneuver through their property damage claims. When you’ve been wrongfully denied or unpaid on your insurance claim, TAG her in to bring the results you deserve!
A native Floridian, Katie Monroe graduated from Florida State University and earned a Bachelor of Science Degree in Marketing and Management. While attending Florida State, Katie also competed on the FSU Swimming and Diving team, where her academic prowess earned her All-ACC honors. Thereafter, Katie attended Barry University School of Law, where she was selected for membership to the Barry University Trial Team.
After obtaining her Juris Doctorate, Katie began working in the field of insurance litigation. Over the last decade, Katie has focused her legal career on fighting for the rights of Florida’s consumers who have been wronged by their insurance providers. Her practice is devoted to litigating insurance claims on behalf of homeowners, professionals, and commercial clients, in cases where insurance coverage is in dispute or claims have been denied or underpaid. Katie fights on behalf of her clients, to force the insurance companies to hold up to their end of the bargain. She has extensive experience ligating a variety of insurance claims, including hurricanes, storm damage, water losses, collapse, fire, theft, vandalism, and liability matters. Katie has litigated insurance dispute cases throughout the state, and has helped resolve over a thousand insurance claims, personally recovering millions of dollars in insurance benefits owed to Florida homeowners.
When Katie is not actively working to protect her client’s rights, she enjoys spending time with her husband and two young kids, playing and watching sports, and exploring all the exciting things Florida has to offer!
Matthew Haldeman is an accomplished attorney at The Adelphi Group, where he represents homeowners and injured individuals in first-party property and personal injury cases. Joining the firm in January 2025, Mr. Haldeman brings over a decade of experience, and a unique perspective shaped by his extensive work on both sides of the courtroom.
Before advocating for plaintiffs, Mr. Haldeman spent years defending a national hospital group in medical malpractice claims and served as defense counsel for a national insurance company, handling bodily injury and first-party property matters. This balanced background gives him rare insight into the strategies and operations of insurance companies and defense teams—an advantage he now leverages to achieve exceptional results for his clients.
Throughout his career, Mr. Haldeman has secured numerous victories, obtaining millions of dollars in settlements and verdicts on behalf of those he represents. In June 2025, he and his team achieved a substantial and favorable jury verdict against a major insurance company, underscoring his skill and dedication in the courtroom.
Mr. Haldeman graduated with honors from the University of South Florida in Tampa, Florida, and later earned his Juris Doctor, magna cum laude, from Florida A&M University College of Law in Orlando, Florida.
At The Adelphi Group, Mr. Haldeman is known for his client-focused, compassionate approach and his relentless commitment to helping people who genuinely need it. He takes pride in using his experience, insight, and passion to level the playing field for his clients and ensure they receive the justice they deserve.
THE ADELPHI GROUP, PLLC
© 2024 by The Adelphi Group
(407) 705-3535
The Adelphi Group, PLLC
2431 Lee Road Winter Park FL 32789
The Adelphi Group Copyright © 2023
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The Adelphi Group (TAG) is committed to our clients to protect your legal rights and hold insurance companies accountable. Whatever your legal needs may be when you’ve been wrongfully denied or unpaid on your insurance benefits, don’t forget to TAG Us In and let the A. team fight for you!