William Michael Sullivan

William Michael Sullivan

4.9
Rating: 10.0

Licensed for 33 years

Family Lawyer at SAYVILLE, NY
Practice Areas: Family, Divorce & Separation, Marriage & Prenuptials

173 NORTH MAIN STREET - SUITE 317, SAYVILLE, NY

About William

Biography

Practice Areas

3

Practice Areas

Fees and Rates

Cost

Hourly Rates

$ 200-495 per hour

Retainer

Always


Payment Methods

  • Cash
  • Check
  • Credit Card

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Licenses

Licensed in New York for 33 years

State: New York

Acquired: 1992

Delinquent

No misconduct found

Location

The Law Office of William M. Sullivan

173 NORTH MAIN STREET - SUITE 317, SAYVILLE, NY, 11782

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William Michael Sullivan's Reviews

Avvo Review Score

4.9 /5.0

33 Client Reviews

Filter Avvo Reviews (33) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.

Showing 1 - 5 of 5 reviews | Lawsuits & Disputes

Posted by Michael | February 12, 2018 | Hired Attorney | Lawsuits & Disputes

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...m a Christian man and will not be anything less than truthful during my divorce proceedings. Never once has Will tried to get me to sacrifice my integrity for any reason. He successfully had my spouse's case thrown out of court. We still have a little more work to do, but thanks to Mr. Sullivan the situation is looking much brighter for me. I believe whole-heartedly that The Lord sent Will my way.

Posted by Kim | August 31, 2017 | Hired Attorney | Lawsuits & Disputes

Saved me

Will saved me from another Attorneys mistakes. Will and his staff are professionals and care about you and your concerns. He negotiates with his clients best interest at heart. He will keep you informed and will always be available to answer your questions. Thank you Will for everything that yo...u have done for me. I highly recommend Will Sullivan and his firm.

Posted by Monika | January 22, 2016 | Hired Attorney | Lawsuits & Disputes

Best Family lawyer

We are happy with our decision to have William as our attorney. I flew all the way from India, just trusting his words , he would get us justice. And he is working on it day and night. His dedication and commitment is commendable. He has gone extra mile to support me as i do not have a family in NY. ...He is very genuine with real human values. He keeps up to his commitment and is very truthful in what he tells his client. It is a team and a family now. I will not be able to express is it in words but he is simply awesome. The best of the best one can get-- he knows what he is doing. I totally rely on his judgement and he seeks and gets best for me ( im sure for all his client). He never compromise with anything which is unsuitable and unfavorable for his client. I feel safe and i am so sure that with him ... me and my son will get justice. God bless him..!

Posted by Jennie | March 10, 2014 | Lawsuits & Disputes

You will never find a better attorney!!!!!!!

Mr Sullivan is the most professional, trustworthy, knowledgeable and HONEST attorney i have ever met!! Mr Sullivan doesnt play games, doesn't say what he doesn't mean, If he doesn't have an answer to a question, he doesn't lie and make up an answer he simply says I dont know, let me get back to yo...u on it, you will never come across someone who will work as hard for you as he does, he has a million other things going on but makes you feel like your his only client, wether it be returning emails, phone calls or meeting in the office, i recommend him highly and I personally will never go to court without him!!!!

Posted by Cathy | March 10, 2014 | Lawsuits & Disputes

Excellant

Will was wonderful, very helpful and he made me feel very relaxed when I met him the first time plus he won my case!

See All Client Reviews

William Michael Sullivan's Lawyer Endorsements

Endorse William
Somair Syed Alam headshot
Somair Alam

Family lawyer | Feb 13

Relationship: Fellow lawyer in community

"Very knowledgeable family law attorney, dedicated to his clients' success."

Catherine E. Miller headshot
Catherine Miller

Divorce and separation lawyer | Sep 24

Relationship: Fellow lawyer in community

"Ms. Sullivan is highly respected by his colleagues for his professional conduct, intelligence and tenacious representation of his client."

Karen Svendsen headshot
Karen Svendsen

Divorce and separation lawyer | May 15

Relationship: Co-worker

"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."

Ettore A. Simeone headshot
Ettore Simeone

Divorce and separation lawyer | May 12

Relationship: Fellow lawyer in community

"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."

View All Endorsements
Brittany A. Fiorenza Esq. headshot
Brittany Fiorenza

Divorce and separation lawyer

Experience

Rating:  10.0 (Superb)

Honors

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

Work Experience

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.

Associations

2014 - 2015

Suffolk County Matrimonial Bar Association

President

2013 - 2014

Suffolk County Matrimonial Bar Association

Vice President

Sample of Legal Cases

O'Loughlin v. Sweetland App Div 2nd Dept. 2009-02720

Appellate Division Reversed

See More Legal Cases

Education

1992

Villanova

JD - Juris Doctor

1987

University of Notre Dame

BBA - Bachelor of Business Administration

Speaking Engagements

2014

Hot Button Topics in Matrimonial and Family Law - November 7, 2014 Hague Convention and Other International Treaties and laws and effects on counseling clients

2010

Matrimonial Boot Camp

Financial Disclosure

Publications

2014

Legal Leaders Legal Leaders: Long Island Top Rated Lawyers

Languages

English

Activity

Avvo Rating

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  • Experience & background Years licensed, work experience, education
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  • Legal thought leadership Publications, speaking engagements
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Avvo Rating Levels
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