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  9. Mark D. O'Leary
Mark D. O'Leary - Car Accident profile photo

Mark D. O'Leary

O'Leary Law Office • Sioux Falls, SD
Car AccidentEmployment LawGeneral PracticeInsurancePersonal Injury
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Contact

Email
mark@olearylawoffice.com
Phone
(605) 988-8750
Address
3500 S Phillips Ave Ste 120, Sioux Falls, SD, 57105-6864, US

Professional

About

Mark D. O'Leary is a distinguished attorney at O'Leary Law Office, located in Sioux Falls, South Dakota. With a robust background in various areas of law, Mr. O'Leary specializes in employment law, personal injury, insurance disputes, and general legal practice. His extensive experience encompasses a broad spectrum of legal matters, including products liability, subrogation, and workers’ compensation claims, making him a versatile resource for his clients. Throughout his career, Mr. O'Leary has successfully navigated complex commercial litigation, ensuring that his clients receive the advocacy they deserve in business disputes and contract negotiations. His deep understanding of insurance bad faith cases equips him to effectively represent clients facing challenges with their insurers, striving to protect their rights and interests. Mr. O'Leary’s commitment to delivering exceptional legal services is evident in his thorough approach to each case. He emphasizes clear communication and personalized strategies, allowing clients to feel informed and empowered throughout the legal process. By leveraging his extensive knowledge and experience, he aims to achieve optimal outcomes for individuals and businesses alike. Located at 3500 S Phillips Ave Ste 120, Sioux Falls, SD, 57105-6864, O'Leary Law Office is dedicated to serving the local community with integrity and professionalism. Whether facing employment-related issues, navigating personal injury claims, or addressing complex legal disputes, clients can rely on Mark D. O'Leary for effective representation and sound legal counsel.

About Car Accident Law

Car accident attorneys represent individuals injured in motor vehicle collisions. They work to obtain compensation for injuries, property damage, and other losses. Common matters include car accidents, truck accidents, motorcycle accidents, pedestrian accidents.

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Credentials

Education
1986 William Mitchell College of Law JD - Juris Doctor
Languages
English

Recognition & Involvement

Awards
2016 Distinguished, Martindale-Hubbell 2015 Exceptional Performance Citation, Defense Research Institute 2014 Exceptional Performance Citation, Defense Research Institute
Associations
2010 - Present South Dakota Defense Lawyers Association Board of Directors 2005 - Present Defense Research Institute Member 1993 - Present South Dakota State Bar Member 1988 - Present State Bar of Texas Member 1986 - Present Minnesota State Bar Association Member

Related Legal Services

Car AccidentMedical MalpracticeSlip and Fall
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Updated: Jun 09, 2026