$ 200-495 per hour
Matrimonial and Family Law matters can be some of the most challenging experiences an individual must go through in life. Unfortunately, the stakes are very high as they often involve matters that will affect the lives of your children for many years to come. It is for this reason that you must consider a lawyer with significant experience in the fields of Matrimonial and Family law. Equally, due to the complexity of these matters, you must consider a full service lawyer that maintains close professional contacts in a vast array of legal disciplines such as coporate, real estate, taxes, etc. such that the attorney is equipped to handle the numerous ancillary issues that come with Matrimonial and Family Law matters. Given the many years that I spent "on Wall Street" allows me to provide strong guidance on financial issues such as asset valuation/distribution, income (both reported and unreported) and financial planning for the future based upon the support package secured in the matter. When choosing a lawyer, It is essential that they have a superior knowledge of the law, an understanding of the many day-to-day demands placed upon a family as they go through this process, coupled with a sensitivity to the fact that resources are better spent on "college funds" for your child than lawyers for litigation. Client satisfaction and effective, effecient representation is my paramount concern. I have spent decades refining my skills in each of these facets and will serve you well. I ask you to simply puruse my client reviews as I believe that they speak for themselves.
3
Practice Areas
26 years
26 years
26 years
$ 200-495 per hour
Always
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Chat withState: New York
Acquired: 1992
No misconduct found
173 NORTH MAIN STREET - SUITE 317, SAYVILLE, NY, 11782
33 Client Reviews
Showing 6 - 10 of 17 reviews | Case Results
Posted by Michael | February 12, 2018 | Hired Attorney | Divorce & Separation
A True Blessing
I first met Will about three years ago. My spouse was using at least two, possibly three mind altering drugs at the time. She was willing to lie, cheat and steal to get whatever she could out of me. She had no problem signing false statements and testifying falsely in court. I informed Will that I a...
Posted by anonymous | January 30, 2018 | Hired Attorney | Divorce & Separation
He Is My Hero
If you need a family law attorney, look no further than Will Sullivan. His impressive credentials and reputation speak for themselves, but he goes way beyond that. I will try to describe my lawyer, who has quickly become so much more. Though words won’t do him or his work justice, here it is. I had t...
Posted by Susan | December 19, 2016 | Hired Attorney | Divorce & Separation
Great litigator, wonderful human being.
Eleven years ago, a friend recommended Will to handle my divorce proceedings. Upon meeting him, I immediately knew I would be in good hands, at a terribly vulnerable point in my life. Will won, what was then, the largest divorce settlement awarded in Suffolk County, and was there for me every st...
Posted by Tony | August 26, 2015 | Hired Attorney | Family
Best Family Law Attorney
Will Sullivan is unquestionably the best family law attorney you could possibly hire. I was involved in a custody dispute that began in North Carolina and moved to New York when I was falsely accused by my ex-wife (who resides in New York) of abusing my daughters. After having to fire three differe...
Posted by Beth | August 24, 2015 | Hired Attorney | Divorce & Separation
Will continues to be a great attorney
I hired Will to represent me in my divorce and again to enforce a child support order. I was very pleased with both outcomes. I've since hired him again to defend my case when my ex filed a frivolous downward modification. Will was successful in having the case dismissed. Will continues to be f...
"Ms. Sullivan is highly respected by his colleagues for his professional conduct, intelligence and tenacious representation of his client."
"I endorse this lawyer. Mr. Sullivan is an extremely tough and competent litigator who stops at nothing to pursue the rights of his clients. In addition, Mr. Sullivan has integrity and always treats his clients with the utmost respect and personal attention. I highly recommend this attorney for any Family Law matter."
"I endorse this lawyer. Will is truly on of the finest attorneys I have ever met in my 32 years of legal practice. He is a wealth of knowledge about any aspect of Family Law and i often call him when I have a complex legal question to get his learned opinion, which I highly respect. He is always willing to assist a colleague. He is highly ethical and competent. I respect him greatly and give him my highest endorsement."
Divorce and separation lawyer
2025
Super Lawyer, Super Lawyers
2024
Super Lawyer, Super Lawyers
2023
Super Lawyer, Super Lawyers
2022
Super Lawyer, Super Lawyers
2020
Super Lawyer, Super Lawyers
2014
Top Attorneys in Long Island, Legal Leaders
1992
Trial Advocacy, Villanova University School of Law
1991
Moot Court Board, Villanova University School of Law
2003 - Present
Partner, Long Tuminello, LLP
2001 - 2003
Managing Partner, William M. Sullivan, P.C.
1992 - 2001
General Counsel/Director of Compliance, AMBAC Financial Services, Inc.
2014 - 2015
Suffolk County Matrimonial Bar AssociationPresident
2013 - 2014
Suffolk County Matrimonial Bar AssociationVice President
Appellate Division Reversed
1992
JD - Juris Doctor
1987
BBA - Bachelor of Business Administration
2014
2010
Financial Disclosure
2014
English
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