Mark D. O'Leary

Mark D. O'Leary

5.0
Rating: 9.6

Licensed for 39 years

Litigation Lawyer at Sioux Falls, SD
Practice Areas: Litigation, Personal Injury, Car Accidents, Lawsuits & Disputes

3500 S Phillips Ave Ste 120, Sioux Falls, SD

About Mark

Biography

Practice Areas

4

Practice Areas

Car Accident 25%

40 years

25%
Litigation 25%

General Practice of law with emphasis on civil litigation, insurance claims, commercial litigation, and problem solving through the application of sound practices of alternative dispute resolution. Licensed in South Dakota, Minnesota, Texas, and the Federal Courts.

40 years

25%

Fees and Rates

Cost

Hourly Rates

$ 175-500 per hour


Payment Methods

  • Cash
  • Check

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Licenses

Licensed in South Dakota for 31 years

State: South Dakota

Acquired: 1994

Active

No misconduct found

Licensed in Texas for 37 years

State: Texas

Acquired: 1988

Eligible to Practice in Texas

No misconduct found

Licensed in Minnesota for 39 years

State: Minnesota

Acquired: 1986

Authorized to Practice

No misconduct found

Location

O'Leary Law Office

3500 S Phillips Ave Ste 120, Sioux Falls, SD, 57105-6864

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Mark D. O'Leary's Reviews

Avvo Review Score

5.0 /5.0

7 Client Reviews

5 star (7)
4 star (0)
3 star (0)
2 star (0)
1 star (0)

Posted by Yvonne | May 2, 2021 | Hired Attorney

This review is from a person who hired this attorney.

President

Mark O’Leary is exceptional! Great advisor and consummate professional. Highly knowledgeable and experienced in litigation matters. Dependable and fair. Mr O’Leary is personable and easily relatable individual. Felt very comfortable working with him. Highly recommend for any business or individual l...egal matters.

Posted by Lidia | October 8, 2020 | Hired Attorney

This review is from a person who hired this attorney.

Proficient attorney

Mark O'Leary managed to successfully navigate around the obstacles and brought the case to the positive resolution.

Posted by Aaron | October 7, 2020 | Hired Attorney

This review is from a person who hired this attorney.

Litigation work

Mark is an amazing attorney that helped me out of the worst time in my life. I would highly recommend him. He is an extremely bright and level-headed litigator who wants to do what is in your best interest.

Posted by anonymous | January 18, 2014

Business Opportunity

My husband and I hired Mark O'Leary to help us make an informed decision regarding a new business investment. Mark was able to patiently explain the pros and cons of each aspect of the new venture. Mark also helped to make sure that we were legally protected from any fall out with the first owners,... and created a very specific contract for us. Our situation required quite a bit of research on his part, since it involved a foreign owned business in North Africa, not exactly a typical client request for him. With Mark's advice and his thoroughness of reviewing all factors in this situation we felt confident to move forward. I would highly recommend Mark for any legal advice that you might need.

Posted by Bill | January 16, 2014

Great Attorney

Mark O'Leary has represented me for several years. First class gentleman and very smart Attorney. Mark's input will help you make solid legal decisions. He will always be thinking in your best interest. I would recomend Mark to anyone. You won't be disappointed.

See All Client Reviews

Mark D. O'Leary's Lawyer Endorsements

Endorse Mark
Michael Dean Bornitz headshot
Michael Bornitz

Lawsuits and disputes lawyer | Jan 05

Relationship: Worked together on matter

"I endorse Mark. We have worked on the opposite side of cases, so I know he always brings his "A" game. Mark is a highly skilled attorney who is equally professional and ethical in all the work he does."

Scott G. Hoy headshot
Scott Hoy

Personal injury lawyer | Nov 03

Relationship: Worked together on matter

"I have worked with Mark on the other side of cases, and have seen his work as a Plaintiff lawyer. He knows the law well, and does an admirable job."

John M O'Brien headshot
John O'Brien

Litigation lawyer | Aug 08

Relationship: Fellow lawyer in community

"I endorse this lawyer. An extremely talented and well respected attorney in the legal community."

View All Endorsements
Michael Dean Bornitz headshot
Michael Bornitz

Personal injury lawyer

Scott G. Hoy headshot
Scott Hoy

Personal injury lawyer

Experience

Rating:  9.6 (Superb)

Honors

2016

Distinguished, Martindale-Hubbell

2015

Exceptional Performance Citation, Defense Research Institute

2014

Exceptional Performance Citation, Defense Research Institute

Work Experience

1991 - Present

Owner, O'Leary Law Office

1990 - 1992

Associate, Jardine Logan & O'brien, PLLP

1988 - 1991

Associate, Hirsch Glover Robinson & Sheiness

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

2014 - 2015

South Dakota Defense Lawyers Association

President

Education

1986

William Mitchell College of Law

JD - Juris Doctor

Languages

English

Activity

Avvo Rating

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  • Experience & background Years licensed, work experience, education
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  • Discipline Disciplinary information may not be comprehensive, or updated. We recommend that you always check a lawyer's disciplinary status with their respective state bar association before hiring them.
Avvo Rating Levels
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution