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Jean Williams Mercurio

2.9
Rating: 6.6

Licensed for 30 years

Divorce and separation Lawyer at Smithtown, NY
Practice Areas: Divorce & Separation, Family, Mediation

823 West Jericho Turnpike, Suite 7C, Smithtown, NY

About Jean

Practice Areas

3

Practice Areas

Family 25%

34 years

25%
Mediation 10%

28 years

10%

Fees and Rates

Cost

Hourly Rates

$ 375-375 per hour


Payment Methods

  • Cash
  • Check
  • Credit Card

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Licenses

Licensed in New York for 30 years

State: New York

Acquired: 1995

Currently Registered

No misconduct found

Location

Law Offices of Jean Williams Mercurio

823 West Jericho Turnpike, Suite 7C, Smithtown, NY, 11787

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Jean Williams Mercurio's Reviews

Avvo Review Score

2.9 /5.0

17 Client Reviews

Filter Avvo Reviews (17) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.

Showing 1 - 5 of 17 reviews

Posted by Sue | April 13, 2026

Terrible unprofessional

She is NOT smart at all! Does not answer any questions that the opposing lawyer asks . She is 100 percent unprofessional. Makes excuse to get out and away from the round table !!! Hahahha I’m sure my ex is sorry he hired HER ! She’s dumb

Posted by Joe | April 09, 2026 | Hired Attorney | Child Custody

She couldn’t care less

Hired this lawyer for a custody case with a quick turn for the initial hearing. I only heard from her for my intake and signing of my petition which was riddled with spelling and grammatical errors. She never called me to discuss evidence, question basic, nothing. She gave me a timeline to receive pa...perwork and 3 times never completed it when she stated it would be done. Her paralegal was rude, constantly cut me off and made unreasonable excuses. The day before my hearing, she literally handed my case off to a junior attorney. I found out when the attorney with NO knowledge of my case called me for a $95 call on my retainer to have me catch him up to speed on my case. The day of my hearing was unsuccessful to say the least and I don’t really have an understanding of why any of this happened. Please don’t waste your time with this attorney. She may not have your best interest in mind.

Posted by Joe | April 18, 2025 | Hired Attorney | Child Custody

Compassionate, Strategic, and Steadfast Advocate in a High-Conflict Custody Battle

I worked closely with Jean Williams-Mercurio during one of the most difficult periods of my life—a bitter, drawn-out custody battle filled with false allegations and emotional turmoil. From the start, Jean was more than just a legal advocate; she became a steady, compassionate presence who guided me ...through both the legal complexities and the emotional weight of the situation. Jean’s legal expertise was instrumental in helping me achieve a fair custody settlement, despite my former partner’s relentless efforts to keep me from my daughter. She was always prepared, strategic, and realistic—never sugarcoating the situation, but always helping me see the bigger picture. What truly set Jean apart was her ability to support me on a personal level. She was patient, understanding, and consistently available to talk through the stress, the confusion, and the emotional toll of the process. Her empathy, paired with her legal skill, made all the difference. If you're navigating a high-conflict custody battle and facing false accusations, I can’t recommend Jean Williams-Mercurio enough. Her professionalism, strength, and compassion helped me survive the storm and come out with a resolution I can live with.

Posted by Chris | April 16, 2025 | Hired Attorney | Divorce & Separation

Highly recommend!

After four years of a grueling divorce, Jean brought me peace. She stood by me through repeated mediations and prolonged delays, always providing support and understanding. Jean took the time to know me and my daughter, making me feel seen and heard. It's a testament to her skill, dedication, and com...passion that I can honestly say I received a settlement that was everything I desired. Jean is more than just a diligent and organized attorney; she's a caring advocate who prioritizes her clients' well-being. Jean's genuine care for me and my daughter made all the difference. Her heart, coupled with her legal expertise, ensured a fair and balanced outcome. I'm profoundly grateful.

Posted by anonymous | March 19, 2025 | Hired Attorney | Child Support

Jean Mercurio is just a plain horrible attorney that doesn't care

I had the unfortunate idea of hiring Mrs Mercurio for a family matter of child support. The line of communication with her has been horrible at best, barely returning my phone calls or emails but she was very quick to get my credit card information when i decided to hire her. I ended up having to do ...all the work myself while she was just showing up to Court doing basically nothing. Be aware since she had some personal/family issues she dropped the ball on many cases. I am sorry if she was going through tough times but unfortunately if she is not able to keep family and business separate she shouldn't be practicing the law. Save your money and look elsewhere. She won't represent you properly

See All Client Reviews

Jean Williams Mercurio's Lawyer Endorsements

Endorse Jean
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Thomas Tona

Divorce and separation lawyer | Jun 09

Relationship: Fellow lawyer in community

"I highly endorse this lawyer. I have worked with Jean on many matters over the last two decades. She is a top notch attorney, achieving great results for her clients while remaining compassionate throughout."

View All Endorsements
Meredith E. Chesler headshot
Meredith Chesler

Divorce and separation lawyer

Audrey Beth Bloom headshot
Audrey Bloom

Real estate lawyer

Thomas Tona headshot
Thomas Tona

Personal injury lawyer

Experience

Rating:  6.6 (Good)

Work Experience

2003 - Present

Owner, Jean Williams Mercurio, Esq.

Associations

2013 - Present

New York State Bar Association

Member

Education

1990

Catholic University

Juris Doctor

1987

University of Scranton

BS - Bachelor of Science

Languages

English

Avvo Rating

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Avvo Rating Levels
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