About Michael L. Duncan

Authorities such as Martindale-Hubbell, Florida Trend, Jacksonville Magazine, the Litigation Counsel of America, and AVVO have repeatedly recognized Mike Duncan’s skill and legal prowess.

Mr. Duncan has extensive trial and courtroom experience representing clients in business and other types of disputes in federal and state courts. He has successfully represented clients in trials and disputes involving contract disputes, fiduciary duty breaches, disputes amongst business partners or co-venturers, misappropriation of trade secrets, tortious interference claims, franchise disputes, non-compete agreements, and confidentiality agreements, collections, real estate disputes, fraud, misrepresentation, bankruptcy and creditor’s rights, conversion (theft), patent disputes, trademark, and copyright infringement claims, computer fraud and abuse, data theft, insurance contract disputes, property damage claims, real estate disputes, and trust and estate-related litigation.

Mike Duncan has significant experience in family law matters such as divorce, dissolution of marriage, custody battles, support disputes, paternity matters, and domestic violence issues.

Mr. Duncan regularly represents clients in all types of appeals in federal and state courts. Mike Duncan primarily works from his Jacksonville, Florida offices, but he has routinely represented clients in matters throughout the rest of Florida and the United States. In addition to being admitted to all state and federal courts in Florida, Mr. Duncan is admitted to practice before the United States Supreme Court, United States Court of Appeals for the Eleventh Circuit, and several other federal courts.

Mike Duncan is also a Florida Supreme Court Certified Circuit Court Mediator and is certified as a mediator by the United States District Court, Middle District of Florida, and regularly mediates civil matters.

Mr. Duncan is a 1989 graduate of Drexel University (where he studied engineering) and a 1994 graduate of Rutgers University School of Law, where he was named a Dean’s Scholar and appointed by the faculty to be Research Chair of the Hunter Advanced Moot Court Board. Following law school, he served as a law clerk for the Hon. Howard T. Snyder, United States District Court, Middle District of Florida. Mr. Duncan then went on to become an equity partner with one of the nation’s largest corporate law firms as well as a well-respected ligation boutique.

Mr. Duncan has earned an AV Preeminent rating from Martindale-Hubbell, its highest possible ranking, and has maintained that rating continuously for 15 years. He has been named one of North Florida’s top attorneys by 904 and Jacksonville Magazines and has been regularly recognized by Florida Trend magazine as one of Florida’s Legal Elite. Mr. Duncan has achieved a 10/10 rating from AVVO. Mr. Duncan is a Fellow in the Litigation Counsel of America, an invitation-only trial lawyer honorary society, which recognizes excellence among litigation and trial attorneys, and has been named to the Million Dollar Advocates Forum and the Multi-Million Dollar Advocates Forum. Mr. Duncan is a Master of the Bench on the Chester Bedell Chapter of the American Inns of Court, a prestigious invitation-only society of trial lawyers and judges, and previously served as its Counselor and on its Executive Committee in other capacities. Mr. Duncan previously served on the Board for Hope Haven Children’s Clinic and Family Center and is a 2013 graduate of Leadership Jacksonville.

No lawyer can ever guarantee success in a dispute, particularly one that goes to trial. However, your chances of winning are significantly increased when you are represented by an aggressive, experienced, and successful trial lawyer. Mike Duncan fights hard and has earned a record of successful results for his clients.

Awards

• AV Preeminent Rating - Martindale-Hubbell, 15 consecutive years

• One of Florida’s top attorneys - 904 and Jacksonville Magazines

• Florida’s Legal Elite - Florida Trend magazine

• 10/10 Rating - Avvo

Professional Associations

• Litigation Counsel of America

• Million Dollar Advocates Forum

• Multi-Million Dollar Advocates Forum

• Master of the Bench - Chester Bedell Chapter of the American Inns of Court

 

Awards

Reviews for Michael L. Duncan

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Overall Rating
Showing 1-10 of 41 client reviews from Lawyers.com
Lawyers.com Rating Snapshot
5 stars
95%
4 stars
2%
3 stars
0%
2 stars
2%
1 star
0%
What do people say on Lawyers.com?
Communication
4.9
Quality of Service
5.0
Responsiveness
4.9
Value for Money
5.0
Family Law
Posted by Christine
October 23, 2025
Hired Attorney

Mr. Duncan is an excellent lawyer who takes his time to listen to his clients. Our family was put into a custody battle and was not getting anywhere until we hired Mr. Duncan. He took his time to listen to our concerns and what we wanted to accomplish. He is very knowledgeable and helpful. He went above and beyond for our son to get all his rights and 50/50 custody of his son. I would 100% recommend!

 
Divorce
Posted by Kevin
June 28, 2025
Hired Attorney

Michael took exceptionally great care and control of my divorce proceedings. I highly recommend him for your own divorce. He's exceptionally highly knowledgeable and extremely well versed in divorce law.

Family Law
Posted by Raynaldy
June 25, 2025
Hired Attorney

Working with Mike Duncan has been easy. He was very helpful and respectful towards me during this process and I recommend him to anyone. He can do anything you ask of him. Mike cares for his people and he’s going to show that through his actions more than just with his words.

Family Law
Posted by JESSICA
June 13, 2025
Hired Attorney

100% Recommend Attorney Duncan!!! ⭐️⭐️⭐️⭐️⭐️ If you’re looking for a family attorney who will fight tooth and nail for you, look no further. Attorney Duncan is an absolute shark in the courtroom — aggressive when it counts, yet always professional and strategic. He genuinely advocates for his clients and doesn’t back down when the stakes are high. I can’t recommend him highly enough if you want someone who truly has your back, you need Attorney Duncan in your corner!

 
Alternative Dispute Resolution
Posted by Adrienna
January 20, 2025
Hired Attorney

Searching for an attorney can be a headache in itself, I was fortunate in finding Mike after only a few searches. He is incredibly knowledgeable, patient and most importantly, he’s genuine with you. He wants the best for his clients and it shows! Thank you Mike.

Divorce
Posted by Sean
December 09, 2024
Hired Attorney

I just want to thank Mike Duncan for all the work he has done for me on 3 different issues, my divorce, an injunction and appeal of final judgement of dissolution of marriage. His outstanding hard work helped prevail a favorable outcome for all three. During my divorce hearings he was well prepared for our defense, his meticulous attention to detail, his court documentation, and his preparedness was invaluable to my defense. Even with all the work he put into the divorce hearing it did not end in our favor, but not by his doing at all. He said you could either accept it and move on or we can file an appeal. I took his advice and we filed an appeal with the 5th DCA. He put in a lot of work on the initial brief and it was spot with everything that the lower court errored on. When the 5th DCA came back with their opinion, they agreed with Mike. They did not just reverse one decision of the lower court they reversed all 3 issues and was sent back to the lower court(win).

 
Divorce
Posted by Shane
July 18, 2024
Hired Attorney

Mike's representation in my divorce case was nothing short of exceptional. His thorough understanding of the law, strategic approach, and personal dedication ensured a positive outcome. I highly recommend Mike to anyone seeking a dedicated and effective attorney. Thank you, Mike, for your invaluable support throughout this challenging time.

 
Family Law
Posted by anonymous
June 12, 2024
Hired Attorney

Having worked with several family lawyers over the years, I can say without hesitation that Michael Duncan has been the most effective attorney with the most consistent results. I trust him implicitly with family matters and with good reason: he produces favorable outcomes in an efficient and calm manner. Michael Duncan is a great resource and a pleasure to know.

 
Family Law
Posted by Carson
June 05, 2024
Hired Attorney

Mike helped to get my kids out of an unsafe living situation. He is incredibly knowledgeable, and was always two steps ahead. Mike was well prepared in court. I was very impressed with how I was represented. He didn't waste my time or money. I couldn't have asked for a better attorney given the situation.

Divorce
Posted by anonymous
October 04, 2023
Hired Attorney

Mr. Duncan was very attentive, pragmatic, and his communication is unprecedented. I felt like his only client at many times, and he educated and prepared me for each step of the process. If you want someone who is going to get your case done, effectively, without missing any deadlines and without backing down on the things that matter most to you, hire Michael.

 

Services

Areas of Law

  • Family Law 1
    • Divorce
  • Domestic Violence
  • Litigation
  • Business Law 1
    • Business Litigation
  • Alternative Dispute Resolution 1
    • Mediation
  • Other 5
    • Alimony
    • Property Distribution
    • Child Support & Custody
    • Pre- and Post-Nuptial Agreements
    • Non-Compete Litigation

Experience

  • Bar Admission & Memberships
    Admissions
    1995, Florida
    United States Supreme Court
    United States Court of Appeals, Eleventh Circuit
    United States District Court, Middle District of Florida
  • Education & Certifications
    Law School
    Rutgers University School of Law
    Class of 1994
    J.D.
    Other Education
    Drexel University
    Class of 1989
    B.S.

Contact Michael L. Duncan

Member at Duncan Trial & Mediation
4.8
110 reviews

301 West Bay Street, Suite 1446Jacksonville, FL 32256U.S.A.

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Office Hours:
  • Monday 09:00 AM - 05:00 PM
  • Tuesday 09:00 AM - 05:00 PM
  • Wednesday 09:00 AM - 05:00 PM
  • Thursday 09:00 AM - 05:00 PM
  • Friday 09:00 AM - 05:00 PM
  • Saturday 09:00 AM - 01:00 PM
  • Sunday 09:00 AM - 01:00 PM
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Attorneys FAQs

  • What year was this attorney first admitted to the bar?
    Michael L. Duncan was admitted in 1995 to the State of Florida.
  • Is this attorney admitted to practice in any U.S. Federal Courts?
    Michael L. Duncan is admitted to practice before the United States Court of Appeals for the Eleventh Circuit, United States District Court for the Middle District of Florida and United States Supreme Court.
  • Is this attorney Martindale-Hubbell Peer Review rated?
    Yes, Michael L. Duncan has a 5.0 Peer Rating from Martindale-Hubbell.
  • Is this attorney Martindale-Hubbell Client Review rated?
    Yes, Michael L. Duncan has a 4.9 Client Rating from Martindale-Hubbell.
  • What law school did this attorney attend?
    Michael L. Duncan attended Rutgers University School of Law.