Skip to main content

Mark C Cogan

About me

I have practiced as a criminal defense attorney since 1982, successfully representing clients facing the entire gamut of criminal charges, from misdemeanors to the most serious felony prosecutions.


I graduated from one of the top 5 law schools in the country, and trained with the best criminal defense attorneys at the National Criminal Defense College.


I established my own criminal defense law practice in Oregon in 1997, and have worked continuously to defend clients in both State and Federal Court.  I currently represent clients facing a range of felony and misdemeanor charges, including financial crimes, driving offenses, major narcotics prosecutions, domestic violence matters, and Ballot Measure 11 charges. 


As the owner of a 2-attorney law firm, I take personal responsibility for defending all my clients.  When appropriate, I include other professionals in my defense team, including investigators, scientists, forensic psychologists, polygraph examiners, and other attorneys.  I have been granted the highest professional recognitions, and am available to take on additional matters. 


Contact my office located in Portland, Oregon for a free initial consultation.  Additional information can be obtained by referring to my website:


Photos and videos

1491315 1282337310

1491315 1282337279

1491315 1282336991

1491315 1274733374

Practice areas


  1. Criminal Defense: 100%
    34 years



Free consultation (60 minutes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

40 total 

Are you an attorney? Endorse this lawyer

  • Richard L McBreen III

    Mark Cogan is one of the most respected criminal defense attorneys in the legal community. He is always willing to share his knowledge and expertise, and I have achieved outstanding results for my own clients on account of his advice and support. His experience and dedication are incredible assets to his clients, and I would certainly recommend his services to anyone facing a serious criminal charge.


    Richard McBreen Sex crime Attorney
    Relationship: Fellow lawyer in community

  • Michael Robert Levine

    Mark is a superb defense attorney dedicated to the vigorous representation of his clients. I recommend him without hesitation.


    Michael Levine Criminal defense Attorney
    Relationship: Fellow lawyer in community


NYCurrently registered 198307/10/2016
HIResigned - Voluntary198708/13/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Top ContributorAvvo2015
Best Lawyer in America (Criminal Defense)Best Lawyers in America2014
AV Preeminent Peer Review RatedMartindale-Hubbell2013
Oregon Super LawyersSuper Lawyers Magazine2012
AV Peer Review PreeminentMartindale-Hubbell2012
AV Peer Review: PreeminentMartindale Hubbell/Lexis Nexis2011
Super Lawyers MagazineOregon Super Lawyers2011
Oregon Super LawyersSuper Lawyers Magazine2010
AV Peer Review Rating: PreeminentMartindale Hubbell/Lexis Nexis2010
AV Peer Reiew Rating: PreeminentMartindale Hubbell/Lexis Nexis2009
Oregon Super LawyersSuper Lawyers Magazine2009
AV Peer Review Rating: PreeminentMartindale Hubbell/Lexis Nexis2008
Oregon Super LawyersSuper Lawyers Magazine2008
AV Peer Reiew Rating: PreeminentMartindale Hubbell/Lexis Nexis2007
Oregon Super LawyersSuper Lawyers Magazine2007
Work experience
TitleCompany nameDuration
Mark C. Cogan, P.C.Private practice in Oregon State and Federal Courts1997 - Present
Criminal Defense DivisionLegal Aid Society1988 - 1997
N/AEzra, O'Connor, Moon & Tam1987 - 1988
N/AParker, Chapin, Flattau & Klimpl1986 - 1987
Criminal Appeals BureauLegal Aid Society1982 - 1986
N/ANAACP Legal Defense and Educational Fund1981 - 1981
Association namePosition nameDuration
Oregon State Bar AssociationInvited Guest, annual media summit2014 - Present
CJA Assigned Counsel Program in Federal CourtMember2001 - Present
Multnomah Bar AssociationMember1997 - Present
Oregon Criminal Defense Lawyers AssociationMember1997 - Present
National Association of Criminal Defense LawyersMember1994 - Present
Oregon State Bar AssociationMember1993 - Present
Oregon State Bar Association Committee on Uniform Jury InstructionsPast MemberN/A
Oregon State Bar Association Summit Between the Legal Profession and the News MediaInvited Guest2010 - 2010
Oregon State Bar Association Task Force on Advertising and Lawyer EthicsMember2009 - 2010
Narcotics Defense UnitMember1988 - 1997
Legal cases
Case nameOutcome
State of Oregon vs. Carl Brent WorthingtonNot Guilty on Manslaughter in the Second Degree
State of New York vs. Benigno ClassWe won this important search and seizure case
See all legal cases 
Publication nameTitleDate
DUII GuideClient's Guide to DUII Practice in the State of Oregon2014
OCDLA DUII MANUALCriminal charges and violations associated with driving under the terms of intoxicants2014
Cogan Law Office websiteCriminal Prosecution of Military Veterans2014
Cogan Law Office websiteInnocent Woman Jailed for 17 Years2014
Cogan Law Office websiteIgnition Interlock Devices and DUII2014
Cogan Law Office websiteDefense of Under Age Sex Crimes2014
School nameMajorDegreeGraduated
National Criminal Defense College, Summer Trial Practice Institute, Macon, GeorgiaN/AN/A1994
New York University School of LawLawJD - Juris Doctor1982
Universite de Caen, France, Rotary International Graduate FellowN/AN/A1979
University of OregonN/AN/A1978
Speaking engagements
Conference nameTitleDate
Hearing Conducted by Oregon Senate Judiciary CommitteeTestimony in Support of Grand Jury Reform Legislation2015
Continuing Legal Education programGrand Jury Reform in Oregon2015
How the legal system impacts young peopleLife 101 Presenter2014
Middle School In Gladstone, OregonLaw Day Presenter2013
Presenter at Student/Staff EventExpungement in Oregon2011
Career DayPresenter2011
Portland Community CollegeFrequent Guest Lecturer at Evidence and Criminal Procedure Classes2010
Catlin-Gabel Mock Trial ProgramGuest Appearance to Present Information on Recent Courtroom Victory in High-Profile Criminal Matter2010
Annual Summit Between the Bar and the News MediaRelationship between the Bar and the News Media2010