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Practice areas


  1. Internet: 40%
  2. Litigation: 40%
    Less than 1 year
  3. Appeals: 20%
    Less than 1 year


Payment types:

Cash, Check, Credit card

Attorney endorsements

14 total 

Are you an attorney? Endorse this lawyer

  • Alexander Joseph Urbelis

    Justin is a superb lawyer and human being. I had the privilege of working with him for six years at Steptoe on matters ranging from appellate work before the US Supreme Court, immigration, art-related disputes, commercial and environmental litigation, and many worthwhile pro bono matters. Justin is a rare bird in the legal community: he is a zealous and effective advocate who is extremely organized, innovative, and affable. A good man and great attorney.


    Alexander Urbelis Antitrust and trade law Attorney
    Relationship: Worked together on matter

  • David A Kochman

    J is an incredibly talented lawyer. In addition to his exceptional competence, he is devoted and demonstrates great follow through. You'd be lucky to have Justin advise you, imho.


    David Kochman Litigation Attorney
    Relationship: Worked together on matter

Contact info

Blackstone Law Group LLP

167 Madison Avenue
Suite 202
New York, NY, 10016


NYDue to reregister within 30 days of birthday 200407/10/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Honor Roll for Exceptional Pro Bono ServiceDistrict of Columbia Courts2013
Work experience
TitleCompany nameDuration
PartnerBlackstone Law Group LLP2015 - Present
Managing MemberJustin B. Perri PLLC2014 - 2015
AttorneySteptoe & Johnson LLP2004 - 2014
Legal cases
Case nameOutcome
Jones v. Attorney General of the United StatesReversal of deportation order
Simon v. IraqSettled
See all legal cases 
School nameMajorDegreeGraduated
Fordham University School of LawLawJD - Juris Doctor2002
Emory UniversityHistoryBA - Bachelor of Arts1999