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About me

Languages spoken: Italian, English

Practice areas


  1. Criminal Defense: 60%
    21 years
  2. Federal Crime: 30%
    15 years
  3. Personal Injury: 10%
    15 years

Attorney endorsements

11 total 

Are you an attorney? Endorse this lawyer

  • David N. Henderson

    Pete is one of the brightest, creative, tenacious, and fearless advocates you will find. If I were in trouble, I would hire Pete. David Henderson


    David Henderson Personal injury Attorney
    Relationship: Worked together on matter

  • Michael S. Waddington

    I endorse Peter. He is a highly skilled attorney that is well respected in the legal community.


    Michael Waddington Military law Attorney
    Relationship: Fellow lawyer in community

Contact info

Mazzone Law Firm

3002 Colby Ave., Suite 302
Everett, WA, 98201


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Top 100 Trial LawyersThe National Trial Lawyers2015
SuperlawyerSeattle Met Magazine2015
Super LawyerSeattle Met Magazine2014
Super LawyerSeattle Met Magazine2013
Work experience
TitleCompany nameDuration
OwnerMazzone Law Firm, PLLC2014 - Present
PartnerMazzone & Cantor, LLP2010 - 2014
PartnerMazzone & Markwell, Lawyers2005 - 2009
PartnerPhillips and Mazzone2001 - 2004
AssociateSpaulding & Phillips, Lawyers2000 - 2001
InstructorCentral Washington University1999 - 2000
Public DefenderSnohomish County Public Defenders1995 - 2000
Association namePosition nameDuration
EasternDistrict of Washington Federal CourtMember2006 - Present
National Association of Criminal Defense LawyersMember2002 - Present
Federal Court of Appeals, 9th CircuitMember2002 - Present
Criminal Justice ActPanel Member2002 - Present
Western District of Washington Federal CourtMember1999 - Present
Snohomish County Bar AssociationMember1995 - Present
Washington State Bar AssociationMember1995 - Present
Washington Association of Criminal Defense LawyersMemberN/A
Legal cases
Case nameOutcome
State of Washington v. OpelLife
State of Washington v. YoungNot Guilty
State of Washington v. FredericksonNot Guilty
See all legal cases 
Publication nameTitleDate
Washington Criminal DefenseCrossing Experts2015
Washington Criminal DefenseEavesdropping On Inmates2013
Washington Criminal DefenseMixed Source DNA: An area ripe for challenge2013
Washington Criminal DefenseCell Phone and Cell Tower Data2011
Washington Criminal DefenseDirect Examination2006
Washington Criminal DefenseOpening Statements2005
Law and Politics MagazineMy Client is Nuts2002
The Seattle Times of Snohomish CountyCan This Man Save Barbara Opel?2002
School nameMajorDegreeGraduated
Gerry Spence Trial Lawyers CollegeTrial SkillsGraduate2000
National Criminal Defense CollegeTrial SkillsGraduate1999
Seattle University School of LawLawJD - Juris Doctor1995
University of MassachusettsGeological SciencePhD - Doctorate1988
Miami University of OhioGeological ScienceMS - Master of Science1983
Illinois State UniversityGeological ScienceBS - Bachelor of Science1981
Speaking engagements
Conference nameTitleDate
WACDL Continuing Legal Education SeminarsConfronting Statements Made to Confidential Informants, Co-conspirators, and Co-defendants2015
WACDL - Annual ConferenceCross Examination of Experts2015
Pierce County Department of Assigned Counsel - CLEJail Telephone Systems: The State Listening In2015
Criminal Justice Act Panel CLECross Examination of Experts2015
WDA - Washington Defender Association Annual ConferenceAnatomy of a Mismanaged Case2014
Washington Capital Case Defense Litigation TrainingInitial Steps When Assigned a Capital Case2014
Washington Association of Legal Investigators - Fall ConferenceInvestigating Cases Involving Cell Phone and Cell Tower Data2014
WACDL - Handling a Complex Federal CaseLimitations on the Use of Cell Phone Tower Data2014
Snohomish County Public Defender Association CLEThe Use of Cell Phone Tower Data During Trial2014
Snohomich County PDA - CLEThe Power of Pre-Trial Motions Practice - A Case Study2014
WACDL - Serious Felony CasesEavesdropping on Inmates: Fertile Grounds for Motions Practice2013
Snohomish County Public Defender Association Continuing CLEOpening Statements2013
71.09 Fall CLE ConferenceSelecting a Fair Jury for Your Sex Offender Client2013
WACDL Annual ConferenceCell phones and cell towers: New forensic tools2012
Snohomish County Bar Association - CLEConducting Jury Trials2011
WACDL - Challenging Bad ScienceCell Phone and Cell Tower Data: New Forensic Tools2010
SCBA - Trial Masters CLEClosing Arguments2010
WALI Fall ConferenceAttorney Expectations of PI's2009
Snohomish County Public Defender Association CLEPre-Trial and Trial Strategy in Sex Cases2009
Washington Association of Legal InvestigatorsCaring for Clients2007
Mental Illness and the LawMental Health Issues in Criminal Law2002