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Practice areas


  1. Contracts: 37%
    18 years
  2. Business: 33%
    18 years
  3. Employment: 15%
    18 years
  4. Advertising: 10%
    11 years
  5. Trademark Application: 5%
    8 years

Attorney endorsements

3 total 

Are you an attorney? Endorse this lawyer

  • Rebecca Jean Heltzer

    I endorse this lawyer.


    Rebecca Heltzer Litigation Attorney
    Relationship: Worked together on matter

  • Veronica Marie Aguilar

    I endorse this lawyer. Mr, Rosenthal is an outstanding lawyer with incredible experience and education. As an outstanding negotiator and litigator, he remains business minded and always has his clients' bottom line at heart. Mr. Rosenthal is compassionate and kind with his clients. He is professional, respected and admired by his opposition. More than anything, Mr. Rosenthal gains results for his clients. You are in great hands with the AR Group.


    Veronica Aguilar Family Attorney
    Relationship: Worked together on matter

Contact info

4850 East Perry Parkway
Greenwood Vlg, CO, 80202


WYAuthorized to practice law201105/29/2016
NMAuthorized to practice law201107/27/2011
MNAuthorized to practice199207/15/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Work experience
TitleCompany nameDuration
PartnerThe AR Group, LLP2009 - Present
Associate General CounselQwest Communications1998 - 2011
AssociatePerkins Coie1997 - 1998
AssociateWinthrop & Weinstine1994 - 1997
Assistant Attorney GeneralMinnesota Attorney General's Office1992 - 1994
School nameMajorDegreeGraduated
University of Michigan Law SchoolLawJD - Juris Doctor1992
University of Minnesota, Twin CitiesStatistics, Economics, Minor in MathematicsBS - Bachelor of Science1989
Speaking engagements
Conference nameTitleDate
SBDC SeminarDeveloping and Protecting Trademarks2013
SBDC SeminarBuying and Selling a Business2013