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Practice areas


  1. Debt Collection: 40%
  2. Litigation: 20%
  3. Business: 20%
  4. Landlord & Tenant: 20%

Attorney endorsements

6 total 

Are you an attorney? Endorse this lawyer

  • Michael A Parham

    I endorse this lawyer. We refer our collection matters to Jon and his firm which is the pre-eminent firm in this area.


    Michael Parham Landlord or tenant Attorney
    Relationship: Fellow lawyer in community

  • Garrick L Gallagher

    I've known Jon for 25 years. He is great to work with and I never hesitate to refer clients to him when they need collection services.


    Garrick Gallagher Litigation Attorney
    Relationship: Fellow lawyer in community

Contact info

Hammerman & Hultgren, P.C.

3101 North Central Avenue Suite 500
Phoenix, AZ, 85012


AZActive 198504/16/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Association namePosition nameDuration
Maricopa County Bar AssociationMemberN/A
National Association of Retail Collection AttorneysMemberN/A
Attorney Forwarding NetworkMemberN/A
Columbia ListMemberN/A
The National ListMemberN/A
The General BarMemberN/A
American Lawyer's QuarterlyMemberN/A
Commercial Law LeagueMemberN/A
State Bar of ArizonaMemberN/A
American Bar AssociationMemberN/A
The Association of Credit and Collection ProfessionalsMemberN/A
School nameMajorDegreeGraduated
University of Arizona College of LawLawJD - Juris Doctor1984
Arizona State UniversityN/ABS - Bachelor of Science1980