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Mark J. Mahoney

Mark J. Mahoney

Practice areas:

White Collar Crime, Federal Crime, Criminal Defense, Appeals, Immigration

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About Me

     Mark Mahoney, a partner in the Buffalo firm of Harrington & Mahoney, has always been engaged in private practice as a criminal defense lawyer, handling trials and appeals in state and federal courts. He is a recipient of the Outstanding Practitioner awards of both the Criminal Justice Section of the New York State Bar Association and of the New York State Association of Criminal Defense Lawyers, of which he is a founding member and former President. Mr. Mahoney has also served as Director of the New York State Defenders Association and is recipient of its Service to Justice Award. He served two terms as an elected member of the Board of Directors of the National Association of Criminal Defense Lawyers. He is a member of the Criminal Lawyers Association (Canada) and is listed in The Best Lawyers in America, and in "Super Lawyers."

     Mr. Mahoney has taught Trial Technique, Appellate Practice and Advanced Criminal Procedure at the State University of New York at Buffalo Law School. He has lectured extensively to a wide range of audiences, across the country and in Canada, and has written numerous articles and chapters of books, on subjects related to criminal law. He is the author of the extinct electronic publication New York Criminal Defense Motions (West, 1994) and the widely circulated "Right to Present a Defense" monograph, published privately at


Practice Areas

Licensed since 1975

  1. White Collar Crime: 30%
  2. Federal Crime: 25%
  3. Appeals: 20%
  4. Criminal Defense: 20%
  5. Immigration: 5%

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Contact Info

70 Niagara St Fl 3
Buffalo, NY, 14202-3407


NYCurrently registered 197503/13/2015

Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.
Avvo Contributions
Legal Answers
Award NameGrantorDate Granted
Outstanding PractitionerNew York State Association of Criminal Defense Lawyers2006
Outstanding PreactitionerNew York State Bar Association1997
Service of JusticeNew York State Defenders Association1997

Work Experience
TitleCompany NameDuration
PartnerHarrington & Mahoney1994 - Present
PartnerBermingham, Cook & Mahoney1989 - 1993
PartnerDoyle, Diebold & Bermingham1974 - 1989

Association NamePosition NameDuration
National Association of Crimninal Defense LawyersFormer Board Member2006 - 2011
Criminal Lawyers Association (Canada)Member1992 - Present
New York State Associatoin of Criminal Defense LawyersFormer President1990 - 1991
American Bar Association, Criminal Justice SectionMember1986 - Present
New York State Bar Association, Criminal Justice SectionExecutive Committee Member1984 - 1998

Legal Cases
Case NameOutcome
USA v. John Rigas, and othersMike Mulcahey was acquitted
USA v. Kirsch, and othersGerald Bove was acquitted

See all Legal Cases 

Publication NameTitleDate
WebThe Right to Present a Defense2014
WebAsperger's Syndrome and the Criminal Law2009
WebWriting the Criminal Appeal Brief2007
West's Legal FormsNew York Criminal Defense Motions1994
New York State Association of Criminal Defense Lawyers (NYSACDL)Whole Motion Catalog1989

School NameMajorDegreeGraduated
State University of New York at Buffalo School of LawLawJD - Juris Doctor1974
University of Notre DameLiberal StudiesBA - Bachelor of Arts1971

Speaking Engagements
Conference NameTitleDate
27th Annual Rusty Duncan Advanced Criminal LawRight to Present a Defense2014
33rd Annual Advanced Criminal Law SeminarRight to Present a Defense2013
2012 Annual MeetingAperger's Syndrome and the Criminal Law2012
Appelate Practice Seminar, San Antonio TXWriting the Criminal Appeal Brief2011
NACDL Annual Meeting - TorontoThe Corporate Officer as Scapegoat2010
NACDL Mid Winter MeetingDocument Processing for the Criminal Defense Lawyer2007
International Symposium on Violence Reduction in Theory & Practice - Emory UniversityThe Death Penalty: Three New Perspectives1999