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About me

I am a partner at Mockrin Slavin Donnelly, LLP.  We are a team of committed compassionate attorneys representing individuals in crisis, educating and empowering them to protect their freedom, their family and their home.  We not only listen to and advocate for our clients, we ensure that our clients understand the decisions they themselves need to make in the course of any litigation.  I am in charge of the firm's criminal defense cases, and play an integral role in our family law and landlord-tenant cases as well.  

I try to draw on my entire life experience when meeting and empathizing with clients.  I was born in Miami, raised in both Chicago and Los Angeles, and have lived in Berkeley, Little Rock, New Orleans, New York City, San Francisco, Sacramento and Washington, D.C. I completed a Bachelor's degree in Political Science in 1995 at the University of California at Berkeley, where I returned for law school in 2002. In between, I served as a writer-editor for a weekly news digest, and worked extensively in professional politics, heading voter registration drives and managing campaigns for candidates for the California Assembly and the United States Congress. 

During law school, I clerked at the East Bay Community Law Center, the San Francisco-based National Center for Lesbian Rights, and earned an entire semester's worth of credits working exclusively for the Marin County Public Defender. By the time I graduated, I had already won pre-trial motions and even served as second-chair on a criminal trial that resulted in a full acquittal. Since graduation, I have worked under the supervision of many solo practitioners in various capacities in both California and Oregon, honing my skills in legal research and courtroom advocacy. 

I opened my own practice in Portland in 2010. During my three years of solo practice, I handled everything from traffic tickets to felonies, and successfully argued in front of both the Oregon Court of Appeals and the Oregon Supreme Court. In State v. Fuller, my arguments persuaded the appellate courts that persons accused of theft do not lose the Constitutional protections afforded all criminal defendants when district attorneys elect to treat their offenses as "violations." This decision changed the law of Oregon as it had stood for two decades, and paved the way for those arrested during the Occupy Portland protests to be tried by a jury of their peers. (You can read more about the case in the Portland Mercury.) 

I am passionate about the ideals of freedom and equality embedded in the U.S. and Oregon Constitutions, and am a fierce advocate for the rights of every person I represent.  I am thrilled to have met two like-minded advocates, and to have formed our small firm.  Working as a team in our pratice areas protecting the most crucial aspects of our clients lives is highly rewarding.

Outside the office, I work within the LGBT* community, am an avid moviegoer, bartender, softball player and a jazz and rock drummer.  I look forward to fighting for every client who walks through our doors at Mockrin Slavin Donnelly.


Photos and videos

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Practice areas


  1. Criminal Defense: 60%
    5 years
  2. Family: 30%
    2 years
  3. Appeals: 5%
    5 years
  4. Landlord & Tenant: 5%
    2 years



Hourly ($240/hour), Fixed (sometimes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

17 total 

Are you an attorney? Endorse this lawyer

  • Colin Grant McCallin

    Karen is a great attorney who works hard every day for her clients. I fully endorse her.


    Colin McCallin DUI and DWI Attorney
    Relationship: Other

  • Damien S Donnelly-Cole

    Karen is a very intelligent and caring attorney. From my interactions with her, it is clear that she fights for her clients, investigates all possible avenues to help them, and truly strives to get them the best outcome possible.


    Damien Donnelly-Cole DUI and DWI Attorney
    Relationship: Fellow lawyer in community

Contact info

Mockrin Slavin Donnelly, LLP

2029 SE Jefferson Street, Ste. 101
Milwaukie, OR, 97222-7605


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Work experience
TitleCompany nameDuration
PartnerMockrin Slavin Donnelly, LLP2016 - Present
PartnerBodzin Donnelly Mockrin & Slavin, LLP2013 - 2016
Solo Practitioner AttorneyKaren J. Mockrin, Attorney at Law2010 - 2013
Clerk / Legal Assitant / Contract AttorneyLaw Offices of (Solo Practitioners)2007 - 2010
ClerkCriminal Defense Associates (Santa Rosa, CA Law Firm)2007 - 2007
Legal EditorLaw Offices of William Fischer2006 - 2006
Certified Law Student InternMarin County Public Defender2006 - 2006
Legal InternNational Center For Lesbian Rights2003 - 2003
Association namePosition nameDuration
Multnomah County Bar AssociationMember2014 - Present
Clackamas County Bar AssociationMember2014 - Present
Oregon State BarAttorney Member2010 - Present
Oregon Criminal Defense Lawyers AssociationMember2009 - Present
Legal cases
Case nameOutcome
State v. FullerWon at the Oregon Supreme Court
People v. W----Full Acquittal by Jury
State v. M----Not Guilty of Resisting Arrest
See all legal cases 
School nameMajorDegreeGraduated
University of California at Berkeley, Boalt Hall School of LawLawJD - Juris Doctor2007
University of California - BerkeleyPolitical ScienceBA - Bachelor of Arts1995
Speaking engagements
Conference nameTitleDate
Objection! Gender, Sex, Law, and Social ChangeThe Future of LGBT Mental Health and Rights2012