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About me

Mr. Daffner is the founding member of the firm of Daffner & Associates, and serves as the Managing Attorney.  He has personally handled thousands of legal matters in a wide variety of jurisdictions, and is a highly-respected member of the defense bar.


In addition to his law practice, Mr. Daffner serves as a specially-appointed Arbitrator in the Civil Division of the Court of Common Pleas, as well as in the United States District Court, and recently presided over a trial involving an aggregate $8,000,000.00 claim in a contract action brought by one of the world's largest steel producers.  Mr. Daffner also serves as a court-appointed attorney representing children in complex custody matters, and is the Chair of the Civil Service Commission overseeing police disciplinary matters in the South Hills area.  In addition, Mr. Daffner is currently serving his fourth term as an elected County Committeeman, and has been a candidate for Judge of the Court of Common Pleas of Allegheny County. 


A firm believer that the key to success is knowledge, Mr. Daffner is also a certified instructor for the Supreme Court mandated Continuing Legal Education program, and has authored a variety of legal texts and teaching materials including the 3-part series, Criminal Practice for the General Practitioner and Essentials of Pennsylvania Criminal Trial Practice.


Mr. Daffner is active in a variety of charitable and community organizations, including the Cystic Fibrosis Foundation, the WEAE Missing Children Campaign, the Leukemia & Lymphoma Society, and the Boy Scouts of America (Eagle Scout mentor).  Having been nationally-ranked as a martial artist (2003 National All Martial Arts Invitational, Men's 30-39 Div.), Mr. Daffner also serves as an instructor in the areas of traditional martial arts as well as close-quarters unarmed combat, and assisted in the formation of an after-school karate program directed toward inner-city youth developed by internationally-renowned Grandmaster Chun Sik Kim.


The recipient of a variety of honors and commendations, Mr. Daffner has been selected as a Pennsylvania "Super Lawyer," placing him in the top 5% of attorneys in Pennsylvania, as one of the Top 100 Trial Lawyers by the National Trial Lawyers, and as well as one of Pittsburgh's Legal Leaders.


Photos and videos

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Practice areas


  1. Criminal Defense: 75%
    23 years
  2. Family: 15%
    23 years
  3. Tax: 5%
    23 years
  4. Business: 5%
    23 years



Free consultation (60 minutes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

2 total 

Are you an attorney? Endorse this lawyer

  • Michael S. Waddington

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


    Michael Waddington Military law Attorney
    Relationship: Fellow lawyer in community

  • Michael Bruce Greenstein

    I practice family law, and do not have a criminal law practice. When I have a client who encounters a criminal law issue, I send them to Marc Daffner.


    Michael Greenstein Child custody Attorney
    Relationship: Fellow lawyer in community

Contact info

Daffner & Associates, P.C.

Allegheny Building
429 Forbes Ave Ste 610
Pittsburgh, PA, 15219

Daffner & Associates

429 Forbes Ave Ste 610
Daffner & Associates Pc
Pittsburgh, PA, 15219-1604



We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Top 100 Trial LawyersNational Trial Lawyers2015
Preeminent 5.0 out of 5Martindale-Hubbell2014
Top 100 Trial LawyersNational Trial Lawyers2013
Top Lawyers in PennsylvaniaThe Legal Network2013
Legal LeaderPittsburgh's Legal Leaders2008
Super LawyerPennsylvania Super Lawyers2007
Top Lawyers in PAPhiladelphia Magazine2007
Top 40 Under 40National Trial Lawyers2001
Work experience
TitleCompany nameDuration
Attorney/OwnerDaffner & Associates, P.C.1993 - Present
Association namePosition nameDuration
American Bar AssociationMemberN/A
Pennsylvania Bar AssociationMemberN/A
Allegheny County Bar AssociationMemberN/A
Federal Bar AssociationMemberN/A
National Association of Criminal Defense LawyersMemberN/A
Association of Federal Defense AttorneysMemberN/A
Pennsylvania Association of Criminal Defense LawyersMemberN/A
Association of Trial Lawyers of AmericaMemberN/A
Publication nameTitleDate
Continuing Legal Education Seminar publicationEssentials of Criminal Trial Practice2003
Continuing Legal Education Seminar publicationCriminal Practice for the General Practitioner1999
School nameMajorDegreeGraduated
University of Pittsburgh School of LawLawJD - Juris Doctor1993
University of RochesterPolitical ScienceBA - Bachelor of Arts1990
Speaking engagements
Conference nameTitleDate
Allegheny County Bar AssociationBridge the Gap Program (CLE)2014