
Jennifer Mazzei
Immigration attorney · Garden City, NY · Admitted New York 1999
About this attorney
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. Read Full Bio
Matters handled
Practices before USCIS, EOIR immigration courts, and the Board of Immigration Appeals (BIA):
Asylum and refugee protection
Green cards
Marriage and family petitions
Work visas
Citizenship and naturalization
Deportation defense
Student visas
Business immigration
Admissions
Licensing and court practice jurisdictions:
Authorized to appear and represent clients before all United States Immigration Courts, the Board of Immigration Appeals (BIA), and USCIS administrative interviews nationwide under 8 C.F.R. § 1292.1.
Languages
Languages consultations and case preparations are conducted in:
Consultations
Consultation formats, fee structures, and scheduling terms:
Initial assessments conducted via secure video conference (Zoom/Meet), telephone, or in-person at the firm office.
Consultation fee is credited directly toward total legal representation fees if you retain the attorney.
Office
Physical office location, remote availability, and jurisdictions served:
Because United States immigration law is strictly federal, this attorney represents clients living across all 50 states, U.S. territories, and abroad with electronic filings and secure video consultations.
Contact
Reach Jennifer directly by phone or submit your inquiry below:
Direct Consultation
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View New York State Hub →Jennifer Mazzei pays to be listed on Greenway Lawyer. This listing is advertising. It is not a recommendation, and Greenway Lawyer has not evaluated the quality of this attorney's work. We have confirmed that licensing is active in New York as of 4 September, 2026. Any attorney-client relationship you form is with Jennifer Mazzei or their firm, not with Greenway Lawyer.