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

Filter Avvo Reviews (7) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.
Star rating
5 stars 7
4 stars 0
3 stars 0
2 stars 0
1 star 0
Practice Areas

Showing 1 - 3 of 3 reviews | Professionalism

Posted by Yvonne | May 02, 2021 | Hired Attorney | Litigation

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 08, 2020 | Hired Attorney | Lawsuits & Disputes

Proficient attorney

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

Posted by Robin | November 21, 2013 | Business

Client focused and 100% professional.

Mark O'Leary has represented me and my business since 1999 and has done so in an exemplary manner. He is very easy to talk to, quick to understand the issues and give excellent guidance even sometimes towards another attorney if he feels it serves the needs of the client better. Mark is very focused ...on what is best for his client which is why I go back to him whenever I have need of legal advice and services. I trust him completely and would not hesitate to recommend his legal services to friends and family.

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