D. Mark Natirboff

Geoffrey D. Sessions is a Partner in our office in Jacksonville, Florida, and he has three decades of expertise in litigating and arbitrating all manner of claims, including aging services, medical malpractice, professional malpractice, and general liability claims. Geoff works with doctors, nurses and other health care professionals as well as hospitals and health care facilities to aggressively defend them in both claims that arise and other legal endeavors. He is a longtime member of the A...

Charles L. Gibbs II is a partner at DMHD. Mr. Gibbs focuses on real estate law, with particular emphasis on retail leasing and commercial real estate transactions. He counsels both landlords and tenants in all aspects of retail leasing and various other commercial real estate transactions. Mr. Gibbs previously clerked for the Honorable David H. Adams, United States Bankruptcy Court for the Eastern District of Virginia. He previously worked for McGuireWoods LLP (Jacksonville, Florida) and Papp...

Charles F. Mills III is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative / Regulatory Law, Environmental Law, Government Contracts, Government Relations Practice, Land Use and Zoning Law and Litigation - Environmental. Charles F., who practices law in Jacksonville, Florida, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Charles F. is held by other top lawyers in the same geog...

Michael McCoy is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Defendants. Michael, who practices law in Jacksonville, Florida, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael is held by other top lawyers in the same geographic and legal practice area.

Michael has been practicing law for over 35 years, of which the last 20 have been devoted to insurance defense litigation. He tries significant product liability cases where there is catastrophic damage and/or serious injury or death. Michael also defends doctors, dentists, hospitals, and their employees, as well as other professionals such as lawyers, in malpractice suits and claims brought against them. To date, Michael has tried over 300 cases to verdict. Michael has also handled matters i...

For more than 25 years, Patrick has represented clients in complex litigation and appellate matters in both federal and state courts. He has extensive litigation and trial experience with cases involving fiduciary litigation, estates and trust litigation, non-compete agreements, contract disputes, business valuations, business dissolution, employment disputes, business torts, intellectual property, products liability, real estate litigation, professional malpractice and other business dispute...

Rachel Chewning is a partner in the Jacksonville office. She practices in the areas of Product Liability, Catastrophic and Personal Injury, Pharmaceutical and Medical Device Litigation, Consumer Law, Commercial Litigation, Liquor Liability Defense, Trucking Accident Defense, Class Action, Vehicle Negligence, Premises Liability and General Civil Litigation. Her practice focuses on providing aggressive representation to clients on both a local and national level and participating as local couns...

Kathryn M. Oughton is a shareholder and Practice Group Leader of the firm’s Property Damage Claims practice area. Kathryn’s practice focuses on civil litigation with an emphasis on the defense of cases involving first party property claims. Other practice areas include automobile liability, premises liability, wrongful death, and bad faith and coverage issues. Prior to joining the firm, Ms. Oughton worked for a state-wide defense firm where she served as head of the civil litigati...

Graham Smith is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property. Graham, who practices law in Jacksonville, Florida, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Graham is held by other top lawyers in the same geographic and legal practice area.

Recognized in Florida Super Lawyers Recognized in the publication, Best Lawyers In America Successfully defended cases in all areas of labor and employment law, including, but not limited to: claims of unlawful discrimination, sexual harassment, retaliatory discharge, equal pay violations, wage and hour violations, employment-related freedom of speech, due process and equal protection claims arising under both the federal and state constitutions Successfully defended cases involving claims of...