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Mariah A Wagar

Mariah A Wagar

Practice areas:

Car Accidents, Personal Injury, Workers Compensation, Social Security, Wrongful Death, Trucking Accident, Brain Injury

About Me


I bring a hard working attitude and sense of fairness that shows my commitment to getting the best results possible for my clients. I graduated magna cum laude from Washington State University. In 2005 I graduated magna cum laude from Gonzaga Law School. After working for a year as a prosecutor, I have been practicing in civil litigation since 2006 where I focus primarily on helping individuals and families affected by injuries caused by others.  I have been a trial attorney my entire legal career, first prosecuting crimes, then as an insurance defense attorney, and now representing people injured by the negligence of others. I currently handle persona injury cases in Kennewick, Richland, Pasco, Walla Walla, and the Yakima valley.



Photos and Videos

36092 1349132374

Practice Areas

Licensed since 2005

  1. Car Accidents: 25%
  2. Personal Injury: 20%
    2 years
  3. Wrongful Death: 15%
  4. Social Security: 15%
  5. Other: 25%
  6. More 



Contingent (33%)

Payment Types:

Cash, Check

Attorney Endorsements

3 total 

  • Jeffrey Martin Kreutz

    I endorse this lawyer. Mariah is an outstanding advocate for her clients.


    Jeffrey Kreutz Personal Injury Attorney
    Relationship: Fellow lawyer in community

  • Ryan Michael Swinburnson

    Mariah Wagar is both very professional and effective. Her reputation is beyond reproach, and I give my full endorsement of her as a person and an attorney.


    Ryan Swinburnson Personal Injury Attorney
    Relationship: Fellow lawyer in community

Contact Info

Harkins Swinburnson & Wagar, PLLC

5724 W Clearwater Ave.
Kennewick, WA, 99336




Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.

Avvo Contributions

Legal Answers


Award NameGrantorDate Granted
2013 Super Lawyers Rising StarWashington Super Lawyers2013
2012 Super Lawyers Rising StarWashington Super Lawyers2012

Work Experience

TitleCompany NameDuration
PartnerHarkins Swinburnson & Wagar, PLLC2014 - Present
AttorneyFlynn Merriman McKennon, PS2012 - Present
PartnerMiller, Mertens, Comfort, Wagar & Kreutz, PLLC2006 - 2012
Deputy Prosecuting AttorneyBenton County Prosecuting Attorney's Office2005 - 2006


Association NamePosition NameDuration
J. Reuben Clark Law Society (Columbia River Chapter)President2013 - Present
Washington State Association for JusticeCo-Chair of Tri-Cities Roundtable2013 - 2014
Kennewick High School Mock Trial TeamCoach2012 - 2013
United States District Court for the Eastern District of WashingtonMember2006 - Present
Washington State Bar AssociationMember2005 - Present

Legal Cases

Case NameOutcome
Chronic Beryllium Worker's Comp CaseClaim accepted
Car Accident Involving Pregnant Mother$175,000
Traumatic Brain Injury Settlement$3.5 Million

See all Legal Cases 


School NameMajorDegreeGraduated
Gonzaga University School of LawLawN/A2005
Washington State UniversityN/AN/A2002

Speaking Engagements

Conference NameTitleDate
Where there's a Will, there's a WayEstate Planning2012