Skip to main content

About me

Daniel McGuinness moved to New York City in 2003 to attend New York University School of Law and fell in love with NYC, living here ever since.  Mr. McGuinness worked in private practice on civil matters following admission to the bar, until working with Adam Perlmutter in United States v. Gioeli.  Mr. McGuinness second-chaired the historic Gioeli trial that led to the acuital of Mr. Gioeli on six counts of murder, including the charged murder of a police officer in an organized crime case in over 100 years.  


In 2015, Mr. McGuinness and Mr. Perlmutter founded Perlmutter & McGuinness, PC, a law firm dedicated to aggressive criminal defense and civil rights litigation.  The firm has generated significant media coverage for its high-profile criminal cases as well as the notable civil rights victories it has acheived.


Photos and videos

1789088 1445624117

1789088 1445624070

Practice areas


  1. Criminal Defense: 90%
  2. Civil Rights: 10%



Free consultation (30 minutes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

1 total 

Are you an attorney? Endorse this lawyer

  • Ezekiel Vermillion

    I've known Dan since law school to be a hard-working and resourceful professional. Since then, he has built a stellar track record for clients facing difficult situations. He has a superb grasp of the procedural details and nuances of trial practice in a variety of courts.


    Ezekiel Vermillion Business Attorney
    Relationship: Friend

Contact info

Perlmutter & McGuinness, P.C.

260 Madison Ave. Suite 1800
New York, NY, 10018-5227


NYDue to reregister within 30 days of birthday 200807/10/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
College MemberNational College for DUI Defense2015
Work experience
TitleCompany nameDuration
PartnerPerlmutter & McGuinness, P.C.2015 - Present
AssociateLaw Offices of Adam D. Perlmutter, PC2011 - 2015
Supervising AttorneyHudson Legal2007 - 2011
Pro Bono Law ClerkBrooklyn District Attorney's Office2006 - 2006
Association namePosition nameDuration
National College of DUI DefenseN/A2015 - Present
New York County Lawyers' Association, Criminal Justice SectionN/A2015 - Present
New York City Bar AssociationN/A2008 - Present
Legal cases
Case nameOutcome
Crawford v. CuomoDismissal Reversed
People v. Ozan WilliamsNot guilty of top count of kidnapping
United States v. Thomas GioeliNot Guilty of all Six Muders
See all legal cases 
Publication nameTitleDate
NY Daily NewsNYPD's Breathalyzer devices shut down 20 times in 4 years over disease fears2015
New York Law JournalPeople v. George2015
School nameMajorDegreeGraduated
New York University School of LawLawJD - Juris Doctor2006
University of Massachusetts, AmherstPhilosophyBA - Bachelor of Arts2003
Speaking engagements
Conference nameTitleDate
Man v. MachineFOIL: A New Path to the Truth2015
CTVPolice continue to investigate Philip Seymour Hoffman's Death2014