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Jennifer Mazzei

also known as MAZZEI & POLK

About me


Jennifer Mazzei, is a graduate of Hofstra University School of Law and practices in the areas of criminal defense and immigration. Prior to co-founding The Law Offices of Mazzei & Polk, L.L.C., she was an Assistant District Attorney in the Nassau County District Attorney’s Office for over five years.  During that time, she prosecuted felony and misdemeanor crimes, conducted wiretap investigations, worked closely with detectives and police officers and assisted in several federal investigations.

Jennifer began her career in District Court where she handled traffic violations, Driving While Intoxicated (DWI) related offenses and many other misdemeanors including assault, aggravated harassment, reckless endangerment, sexually based offenses and drug related offenses, trying several of them to verdict and conducting many evidentiary hearings in the process. 

Rising up the ranks quickly, Jennifer was then promoted from District Court after only one year and was assigned to the Special Victim’s Bureau, where she exclusively prosecuted domestic violence cases for approximately one year and tried several of them to verdict.

Jennifer was then promoted again to the Grand Jury warrant rotation where she presented numerous cases to the Grand Jury and secured indictments in nearly every case. In addition, during that time, Jennifer assisted police officers and detectives in determining what crimes to charge defendants with and advised them on how to handle certain legal situations. Jennifer also handled all requests by detectives and police officers for search warrants in matters including homicides and vehicular manslaughter. 

Again rising quickly, after approximately one year, Jennifer was again promoted to the elite Organized Crime and Rackets Bureau where she worked closely with local law enforcement as well as federal agents while she investigated and prosecuted cases involving organized crime, sexual abuse of children, child pornography, drug manufacturing and distribution, violations of the New York State Tax Law, witness tampering, gambling related offenses and enterprise corruption.  On more than one matter, Jennifer worked closely with the United States Attorney’s Office for both the Eastern District of New York as well as the Southern District of New York to prosecute numerous defendants. While assigned to the Rackets Bureau, Jennifer conducted investigations involving court authorized eavesdropping warrants (wiretaps) on approximately seventeen different phones, earning her multiple awards from the federal government's various agencies including the United States Attorney's Office for the Southern District of New York.




Languages spoken: English, Spanish, Italian

Photos and videos

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Practice areas


  1. Immigration: 50%
    5 years
  2. Criminal Defense: 50%
    10 years, 2 thousand cases



Fixed (always), Retainer (always)

Payment types:

Cash, Check, Credit card

Attorney endorsements

25 total 

Are you an attorney? Endorse this lawyer

  • Todd Andrew Spodek

    Jennifer is a formidable trial attorney, bright, and crafty. Her results in the courtroom speak for themselves.


    Todd Spodek Criminal defense Attorney
    Relationship: Opposing Counsel on matter

  • Michael Joseph Alber

    Jennifer brings experience to the table. As an Assistant District Attorney she was exposed to a wide range of cases including cases involving eavesdropping, complex investigations, and cases involving the highest level of pressure. Jennifer's attention to detail sets her apart from her peers. Jennifer's courtroom demeanor is supported by her command of the law and confidence which comes out the moment she speaks. The respect she has from her adversaries, judges and lawyers in the community is of the highest level. I would entrust Jennifer to handle any criminal or immigration matter.


    Michael Alber Divorce and separation Attorney
    Relationship: Fellow lawyer in community

Contact info

Mazzei & Polk, LLC

953 Franklin Avenue
Suite 200
Garden City, NY, 11530


NYCurrently registered 200707/11/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
2016 Rising StarSuper Lawyers2016
Top 40 Lawyers Under 40American Society of Legal Advocates2016
Appointed Deputy Village AttorneyVillage of Valley Stream2015
Top 40 Lawyers Under 40American Society of Legal Advocates2015
Rated AttorneyLead Counsel2014
Top 40 Lawyers Under 40American Society of Legal Advocates2014
Outstanding Contributions in InvestigationsOrganized Crime Drug Enforcement Strike Force Financial Investigations Team2012
Lawyer's Dedication in Investigation and ProsecutionUnited States Attorney for the Southern District of New York2012
Who's WhoCambridge Who's Who2011
Lawyer's Meritorious Service PlaqueNassau County District Attorney2011
True American Hero AwardFederal Drug Agent's Foundation2010
Superior Performance in the Field of Drug Law EnforcementFederal Drug Agents Foundation2010
Award of AppreciationUnited States Marines, 2nd Battalion 25th Marines2006
Pro Bono Service AwardHofstra University School of Law2006
Work experience
TitleCompany nameDuration
PartnerMazzei & Polk L.L.C.2011 - Present
Assistant District AttorneyNassau County District Attorney's Office2006 - 2011
Judicial InternCivil Court City of New York2005 - 2005
Law ClerkArdito & Ardito1999 - 2005
Association namePosition nameDuration
Hofstra University School of LawAdjunct Instructor2016 - Present
Federal Court, Southern District of New YorkN/A2012 - Present
Federal Court, Eastern District of New YorkN/A2012 - Present
Republican ClubExecutive Committee Member2011 - Present
Nassau County Bar AssociationMember2007 - Present
Nassau County Federation of Republican WomenSeminars and Symposiums Chair2012 - 2012
Domestic Violence Courtroom Advocates ProjectPresident2006 - 2006
Sports and Entertainment Law DigestAssociate Editor2005 - 2006
Italian Law Students Association (ILSA)Vice President2005 - 2006
Phi Alpha DeltaMember2003 - 2006
Hofstra Law WomenTop Fundraiser-Making Strides Against Breast Cancer-20062003 - 2006
Phi EpsilonN/A2000 - 2003
Legal cases
Case nameOutcome
People v. RWCase dismissed
People v. XYCase dismissed
People v. Rakesh K. Punn, MDThis matter is currently being prosecuted by the United States Attorney
See all legal cases 
School nameMajorDegreeGraduated
Hofstra University School of LawLawJD - Juris Doctor2006
Hofstra UniversityMarketingBBA - Bachelor of Business Administration2003
Speaking engagements
Conference nameTitleDate
Hofstra Career ServicesAn insider's Guide to the Interviewing and Hiring Process for District Attorney's Offices2010
Hofstra University School of LawHow to Prepare for the Bar Exam2008
Hofstra University School of LawCareer Fair2007