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Practice areas


  1. Workers Compensation: 34%
  2. Wrongful Death: 33%
  3. Personal Injury: 33%

Attorney endorsements

2 total 

Are you an attorney? Endorse this lawyer

  • Gary Evan Gerson

    Jon is a very well known and well respected injury attorney in western and central Pennsylvania.


    Gary Gerson Criminal defense Attorney
    Relationship: Fellow lawyer in community

  • Deborah Maliver

    I endorse this lawyer. A great attorney!


    Deborah Maliver Medical malpractice Attorney
    Relationship: Fellow lawyer in community

Contact info

Marcus & Mack, P.C.

57 S 6th St
Po Box 1107
Indiana, PA, 15701-2762


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Member of the Nation's Top One PercentNational Association of Distinguished Counsel2015
Pennsylvania Super LawyerPennsylvania Super Lawyers2015
Pennsylvania Super LawyerPennsylvania Super Lawyers2014
Pennsylvania Super LawyerPennsylvania Super Lawyers2013
Pennsylvania Super LawyerPennsylvania Super Lawyers2012
Indiana County Male Civic Leader of the YearLeader's Circle of Indiana County2012
Pennsylvania Super LawyerPennsylvania Super Lawyers2011
Work experience
TitleCompany nameDuration
PartnerMarcus & Mack1992 - Present
AttorneyHolsinger, Clark, Armstrong & Supinka1991 - 1991
Business Owner/Automobile WholesalerBoulder, Colorado1990 - 1990
Attorney/PartnerMack and Bonya1983 - 1989
Association namePosition nameDuration
J.S. Mack FoundationPresident2006 - Present
J.S. Mack FoundationTrustee1985 - Present
Lackawanna Bar AssociationMember1983 - Present
Indiana County Bar AssociationMember1983 - Present
Pennsylvania Association For JusticePast Member1977 - Present
Pennsylvania Trial Lawyers AssociationPast Member, Board of GovernorsN/A
Western Pennsylvania Trial Lawyers AssociationPast PresidentN/A
Pennsylvania Bar AssociationPanel Member, Judicial Evaluation Committee1998 - 2013
School nameMajorDegreeGraduated
University of Toledo College of LawLawJD - Juris Doctor1983
Dickinson CollegeEnglish, Spanish, GeologyBA - Bachelor of Arts1980