Mr. Seidman began his career at the Middlesex County Prosecutor’s Office. During his time as an Assistant Prosecutor, Mr. Seidman served in a variety of roles, including: overseeing investigations conducted by county detectives and police officers; acting as a legal adviser and Prosecutor for the Middlesex County Gangs, Guns, and Drugs Task Force; participating in the Special Prosecutions Unit tasked with investigating white collar crime; arguing matters before the Appellate Division; handling forfeiture and expungement matters; and handling hundreds of criminal cases from initial grand jury indictments through plea bargains, trials and sentencing for offenses such as Murder, Drug Distribution, Aggravated Assault, Racketeering (RICO), Eluding, and many others.
Practice areas
Aggressive former prosecutor
11 years, 500 cases
Speeding & Traffic
11 years, 250 cases
Languages spoken
English, Spanish
Law Offices of Jonathan F. Marshall
53 Paterson Street
1st Floor (by appointment only)
New Brunswick, NJ, 08901
State | Status | Acquired | Updated |
---|---|---|---|
NJ | Active | 2009 | 12/28/2020 |
Award name | Grantor | Date granted |
---|---|---|
Certificate of Completion Drug Court Conference and Training | Administrative Office of the Courts | 2013 |
Certificate of Completion Top Gun Narcotics Training | New Jersey Division of Criminal Justice | 2013 |
Certificate of Completion- The Art and Skill of Trial Advocacay | Attorney General's Advocacy Institute | 2011 |
Title | Company name | Duration |
---|---|---|
Managing Attorney | Law Offices of Jonathan F. Marshall | 2018 - Present |
Attorney | The Law Offices of Jonathan F. Marshall | 2015 - 2018 |
Assistant Prosecutor/Attorney | Middlesex County Prosecutor's Office, New Brunswick, New Jersey | 2010 - 2015 |
Managing Attorney | Law Office of Jason A. Seidman | 2009 - 2010 |
Summer Associate | Central Jersey Legal Services | 2008 - 2008 |
Summer Associate | Arseneault, Whipple, Farmer, Fasset, & Azzarello | 2007 - 2007 |
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Association name | Position name | Duration |
---|---|---|
Middlesex County Bar Association | Member | 2013 - Present |
Middlesex County Prosecutor's Association | Member | 2011 - 2015 |
Publication name | Title | Date |
---|---|---|
AVVO Legal Guides | Guide to the New Jersey Criminal Process (Pre bail reform) | 2015 |
School name | Degree | Graduated |
---|---|---|
University of the District of Columbia, David A. Clarke School of Law | JD - Juris Doctor | 2009 |
Lafayette College | BA - Bachelor of Arts | 2005 |
Conference name | Title | Date |
---|---|---|
Pre-Indictment Process in Middlesex County | Pre-Indictment Process | 2019 |
Expunging a Criminal Record - what you need to know as a defense attorney; what you need to know as a prosecutor | Expungement | 2015 |
Grand Jury Practice | Grand Jury | 2014 |
Recent Developments in Expungement Law | Expungements | 2013 |
Case name | Outcome |
---|---|
State v. VK | All Charges Dismissed |
State v. BC | Not guilty verdict. |
State v. SJ | Dismissed |
State v. CV | Dismissed |
IMO THE APPLICATION OF M.G. FOR THE EXPUNGEMENT OF RECORDS | Adversaries appeal denied |
IMO RC | Case Dismissed after trial |
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Brett Rosen, Criminal defense Attorney on Mar 20, 2018
Relationship: Co-worker
I endorse this lawyer. Jason is very knowledgeable when it comes to criminal law, and is an attorney that commands respect. I would highly recommend Jason to anyone.
Anthony Vecchio, Criminal defense Attorney on Aug 11, 2016
Relationship: Opposing Counsel on matter
I have known Jason for several years both as a defense attorney and prosecutor. I have always found him to be highly professional, knowledgeable, and effective. I would highly recommend him.
Jonathan Marshall, Criminal defense Attorney on Aug 10, 2016
Relationship: Opposing Counsel on matter
I endorse this lawyer. Jason was a prosecutor in Middlesex County and I had several cases against him over the years. I was extremely impressed with his knowledge, skill and dedication. I knew this would translate well as a defense attorney and offered him a job.
Leon Matchin, Criminal defense Attorney on Aug 9, 2016
Relationship: Opposing Counsel on matter
I endorse this lawyer. Jason is a former prosecutor and we worked together on cases which he prosecuted and I defended. In light of my experiences with Jason I know that he is smart and tough and does a great job for his clients like he did for the State.
Douglas Herring, Criminal defense Attorney on Aug 8, 2016
Relationship: Worked together on matter
I have known Jason Seidman for several years. He was a tough, knowledgeable, and extremely skilled prosecutor. He knows the law and every person in the Court system and Prosecutor’s office. He knows all the police and detectives. He is a extremely skilled trial attorney and an expert on criminal law. I highly endorse Jason Seidman.
Michael Allongo, Criminal defense Attorney on Aug 8, 2016
Relationship: Fellow lawyer in community
I have known Jason for five years and worked on various matters with him during that time. He is knowledgeable, competent, and, when necessary, aggressive. I wholeheartedly endorse him as an attorney without hesitation or reservation.
Matthew Dorry, Criminal defense Attorney on Aug 8, 2016
Relationship: Co-worker
I endorse this lawyer. When I joined the firm, Mr. Seidman was welcoming in discussing our cases and potential arguments for our clients. Our discussions prove to me his experience and confidence in advocating vigorously on behalf of our clients.
William Fay, Criminal defense Attorney on Jul 25, 2016
Relationship: Co-worker
I have come across a multitude of attorneys in my time practicing the law. However, I would be hard-pressed to name a single one who is more intelligent, astute, and kind-hearted as Jason Seidman. He truly is a student-of-the-law. If Mr. Seidman is handling your matters, you can be assured that you are in competent and caring hands.
William Proetta, Criminal defense Attorney on Jun 27, 2016
Relationship: Co-worker
I strongly endorse this attorney! This guy continues to impress me day in and day out with his hustle, dedication and knowledge of the law. Jay is the kind of guy who will never ask for a hand out - all of his accomplishments have been earned through shear determination and work ethic. He started his career as an intern at the Middlesex County Prosecutor's Office and soon gained the respect and recognition of the front office and he was hired as an Assistant Prosecutor. From there he quickly rose through the ranks to become the head of the drug task force. But what I find most impressive is how effectively he has transitioned into practicing criminal defense - something the vast majority of prosecutors are unable to do. Jay is one hell of a lawyer and an all around great guy and you would be lucky to have him represent you.
Keith Oliver, Criminal defense Attorney on Nov 10, 2015
Relationship: Opposing Counsel on matter
I endorse this lawyer. Jason joined our firm six months ago after being a Middlesex County Prosecutor for five years. He has taken all his training and experience that he gained as a prosecutor and now uses it to vigorously advocate on his clients behalf.