James J. Sexton




James J. Sexton is a divorce lawyer. 

He wakes up every day at 4:00am.

He lives in Manhattan.   

Colin Dunnigan




With piercing blue eyes and a commanding presence, Colin J. Dunnigan, Esq., appears more of a future president than a matrimonial attorney.  However, it is his quick wit, charming attitude and trusting demeanor that have earned him the respect of clients, judges and adversaries in his short, but celebrated career as a legal advocate. 

In 2016, after several years directly under the tutelage of Founding Partner, James J. Sexton, Esq., Colin J. Dunnigan, Esq. was elevated to the position of Partner, the first Partner in the firm's 17 year history.

Whether advocating in the courtroom or negotiating at a conference table, Mr. Dunnigan enjoys the challenge of being at his best at all times.  Divorce and Family Law requires the flexibility to respond and react in a manner befitting each client’s needs.  At times he may have to argue vigorously and passionately for relief, while at other times he needs to approach a case from a result driven mind-set in order to achieve a lasting settlement.  He has thrived professionally in this environment and has successfully litigated hundreds of cases related to Divorce and Family Law.  Mr. Dunnigan believes that every person is entitled to zealous advocacy and takes that right seriously. He is honored to be a voice for persons who may otherwise go unheard.

As Partner in the firm, Colin J. Dunnigan, Esq. oversees Mr. Sexton’s team of hand-picked associates, affectionately known as "The War Machine."  In 2015, while Senior Associate at the office, Mr. Dunnigan was quoted as saying, “We like to call it peace through superior firepower.  We’ve worked hard to establish a reputation as litigators that, in and of itself, causes the other side to take pause and consider early settlement.”

Mr. Dunnigan majored in Philosophy and minored Classical Civilization at Fordham University, where he graduated in 2007.  He worked in the banking and investment industries before finding his calling for the law and commencing his legal studies and career.  He graduated from Pace Law School in 2013.  During his time at Pace Law, Mr. Dunnigan interned at the Rockland County District Attorney’s Office and for the Honorable William K. Nelson of the Rockland County Criminal Court. 

Mr. Dunnigan resides in the Hudson Valley with his wife and two young sons. In his free time, Mr. Dunnigan enjoys spending time with his family and dogs, including hunting for monsters with his 2 year old.


Jared DeRosso




Jared W. DeRosso, Esq. is the Senior Associate with the Law Offices of James J. Sexton. Mr. DeRosso has specialized in the areas of Matrimonial Law and Family Law since 2012. He is admitted to the New York State Bar and is an active member of the Rockland County Bar Association.

Mr DeRosso received his bachelor’s degree in Political Science with a concentration in Public Law from SUNY Albany. He recognized that his love of debating translated into a career in the law, and subsequently undertook a law degree at Albany Law School. During this time Mr DeRosso interned with the Honorable Jeffrey A. Cohen, New York Supreme Court, 9th Judicial District; Albany County District Attorney's Office; and the New York State Insurance Department. He was President of the Albany Law School Flag Football and member of the Albany Law School Softball teams before graduating in 2012.

Mr. DeRosso is driven by his desire to secure positive results for his clients.

Eric Holzer




Eric Holzer, Esq. is an Associate Attorney with the Law Offices of James J. Sexton. Mr. Holzer has specialized in the areas of Matrimonial Law, Family Law and Criminal Law since 2007.  He is admitted to the New York State Bar.

Mr Holzer received a BA in Mathematics with a Minor in History from SUNY Albany in 2004. After taking into consideration his own interest in the law and the experiences of friends and family members who were attorneys, Mr Holzer decided this was the right career to pursue. As a former athlete who played both football and lacrosse in college, he knew that litigation would enable him to utilize his love of competition for the benefit of others. He attended Albany Law School and graduated in 2007.

While at law school Mr Holzer interned at Westchester County District Attorney's Office (Summer 2005); Bertine, Hufnagel, Headley, Zeltner, Drummond & Dohn LLP (Summer 2006); Albany City Court (Fall 2006); New York State Attorney General's Office: Claims Division (Spring 2007). In his free time he was a prominent member of both the Celtic Law Society and Albany Law School Rugby Team.

Prior to joining the Law Offices of James J. Sexton, Mr Holzer worked as an Assistant District Attorney in the Rockland County District Attorney's Office from August 2007 through the end of August 2014. He was pleased to receive the Rockland County's 40 Under 40 Award from the Rockland Economic Development Corporation in 2012. He also received numerous Law Enforcement and Civilian Achievement Awards from various law enforcement agencies and groups during his time as an Assistant District Attorney. As an Assistant District Attorney he presented more than 100 cases to the grand jury, was involved in complex criminal investigations with local, state and federal law enforcement agencies, conducted pre-trial evidentiary hearings and conducted many trials to verdict, including those involving serious felony cases.

Mr Holzer relishes the competition in the courtroom and thrives on the continually evolving nature of the law. He enjoys helping his clients overcome challenging situations.

Christina Campolo


CHRISTINA CAMPOLO, Associate Attorney


Christina Campolo, Esq. joined the firm as an Associate Attorney in 2017. Prior to her admission to the New York State Bar she served as a Legal Intern for the firm from 2015-2016 working along side the attorneys of the firm and assisting on a wide array of family law matters. 

Ms. Campolo attended the University of Arizona and received a bachelor’s degree in Public Administration with a concentration in Criminal Justice. She attended St. John's University School of Law where she was involved in the Journal of Civil Rights and Economic Development and Courtroom Advocates Program. While at law school, Ms. Campolo interned at the Law Offices of James J. Sexton P.C., New York Legal Assistance Group Domestic Violence Clinic, and the United District Court for the Southern District of New York where she served as Judicial Intern for the Honorable Nelson S. Roman. She graduated in 2016.

Ms. Campolo took the decision to pursue a career in law after two enlightening summers as an undergraduate at the District Attorney's Office in Rockland County. She served as an intern with Law Offices of James J. Sexton for two years and, during that time, established herself as an asset to the firm. She relishes the opportunity presented by the law to help those who cannot help themselves.