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Jonathan Joseph Cavanagh

Jonathan Joseph Cavanagh

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About Me

  • LL.M. in Taxation Law (University of Florida) 

  • Oregon State Bar, Member

  • Idaho State Bar, Member (Pending) 

  • Certified Public Accountant (Oregon) 

An emerging young professional, Jonathan has the rare distinction of being licensed as a CPA and attorney. His tax law credentials are further established by his LL.M. (Taxation) from the University of Florida.

Jonathan’s previous private sector legal experience includes positions at Lane Powell and Luvaas Cobb. Jonathan has also enjoyed success in the public sector during his time at the Office of the Governor (Oregon) where he worked for the Governor's General Counsel and worked with lawmakers and legislative committees.

Jonathan’s work as an Executive Editor for the Oregon Law Review earned him the high honor of the Nancy Farmer Distinguished Service Award.
In addition to being an attorney, Jonathan has significant experience in public accounting.

The combination of his licenses to practice both as an attorney and as a CPA signifies to clients that he brings a deep understanding of financial and tax implications of business decisions. Jonathan’s business background is a tremendous asset in solving client problems


Practice Areas


  1. Tax: 80%
  2. Business: 20%

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Contact Info

Thornton Byron LLP
3101 W. Main Street, Suite 200
Boise, ID, 83702-2099


IDAuthorized to practice law201109/13/2015

Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.
Avvo Contributions
Legal Answers
Award NameGrantorDate Granted
Nancy R. Farmer Distinguished ServiceOregon Law Review2009
Work Experience
TitleCompany NameDuration
Associate AttorneyThornton Byron LLP2010 - Present
Law ClerkOffice of the Governor (Oregon)2009 - 2009
Summer AssociateLane Powell PC2008 - 2008
CPAMoss Adams LLP2003 - 2006
Association NamePosition NameDuration
Idaho State BarMember (Pending)2011 - Present
Oregon State Bar, Taxation SectionMember2010 - Present
Oregon State BarMember2009 - Present
American Bar Association, Taxation SectionMember2009 - Present
Oregon Board of AccountancyMember (CPA)2005 - Present
Publication NameTitleDate
The OregonianMaking Green by Going Green2009
School NameMajorDegreeGraduated
University of Florida, Fredric G. Levin College of LawTaxationLL.M - Master of Laws2010
University of Oregon School of LawLawJD - Juris Doctor2009
University of PortlandAccountingBBA - Bachelor of Business Administration2003