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About Theresa Ann Mari

Theresa Ann Mari is a lawyer practicing corporate law, personal injury, real estate and 6 other areas of law. Theresa received a B.A. degree from State University of New York at Binghamton in 1985, and has been licensed for 38 years. Theresa practices in Hauppauge, NY.

Awards

Reviews for Theresa

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Overall Rating
Showing 1-3 of 3 client reviews from Lawyers.com
Lawyers.com Rating Snapshot
5 stars
33%
4 stars
0%
3 stars
0%
2 stars
0%
1 star
67%
What do people say on Lawyers.com?
Communication
3.0
Quality of Service
2.3
Responsiveness
2.7
Value for Money
2.3
Family Law
Posted by Sara
September 12, 2025
Hired Attorney

The moment you meet Theresa Mari you know you are in the hands of someone extraordinary. She combines unmatched legal skill with a level of compassion that is rare to find in any profession. During one of the most heartbreaking times of our lives, Theresa was more than an attorney—she was a source of strength, understanding, and genuine care. She listened with patience, explained every step clearly, and carried our case as if it were her own family’s. What stood out most was her ability to balance fierce advocacy in the courtroom with warmth and humanity outside of it. Theresa fought for us with precision and confidence, but she also comforted us with empathy that never felt forced. If you are searching for an attorney who not only knows the law inside and out but also truly sees and respects the people she represents, look no further. Theresa Mari is the advocate you want on your side.

 
Family Law
Posted by anonymous
April 16, 2022
Hired Attorney

AWFUL AWFUL AWFUL!!!!!!!!! Don’t waste your time getting the run around. Plenty of other Long Island attorneys.

Mediation
Posted by anonymous
December 19, 2023
Hired Attorney

This woman was very unpleasant and not professional not very knowledgeable did not understand what was going on and used cookie cutter law practice rude at times and rushed everything every aspect of this issue unfortunately she does not have kids and may not understand what children go through with parents

Services

Areas of Law

  • Corporate Law
  • Personal Injury
  • Real Estate
  • Family Law 1
    • Child Custody
  • Alternative Dispute Resolution 1
    • Mediation
  • Other 4
    • Domestic Relations
    • Children
    • Adoption
    • Divorce & Separation

Experience

  • Bar Admission & Memberships
    Admissions
    1988, Connecticut
    1989, New York
    1989, U.S. District Court, Eastern District of New York
    1989, U.S. Court of Appeals, Second Circuit
  • Education & Certifications
    Law School
    Hofstra University School of Law
    Class of 1988
    J.D.
    Other Education
    State University of New York at Binghamton
    Class of 1985
    B.A.
  • Personal Details & History
    Age
    Born in 1963
    Manhattan, New York, November 2, 1963

Theresa Ann Mari

2.6
3 reviews

200 Vanderbilt Motor ParkwayHauppauge, NY 11788U.S.A.

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