On Monday, September 8, 2025, the Supreme Court of New Jersey ordered the suspension of attorney Jon Mitchell De Masi from the practice of law for three months, effective October 12, 2025. The disciplinary action follows a recommendation from the Disciplinary Review Board.
The case is entitled “In the Matter of Jon Mitchell De Masi,” with case no. 090308.
De Masi faced disciplinary proceedings after a default by the respondent, leading to the review board’s recommendation.
The suspension is a consequence of De Masi’s violations of several Rules of Professional Conduct (RPC). These include RPC 1.3, indicating a lack of diligence; RPC 1.4(b), concerning a failure to communicate adequately with a client; and RPC 8.1(b), involving two instances of failing to cooperate with disciplinary authorities.
In addition to the suspension, the Supreme Court has ordered De Masi to provide proof to the Office of Attorney Ethics within thirty days that he refunded $7,500 to a former client. De Masi is also required to comply with Rule 1:20-20, which pertains to the responsibilities and conduct of suspended attorneys.
The entire record of the case will be permanently included in De Masi’s file as an attorney at law in the state. Furthermore, he must reimburse the Disciplinary Oversight Committee for the administrative costs and actual expenses incurred during the prosecution of the matter.
According to Avvo.com, Mr. DeMasi is a criminal defense attorney in Woodbury, New Jersey. He attended Quinnipiac University School of Law, graduating in 1991. He acquired his law license in New Jersey in the same year.
A copy of the original filing can be found here.
