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Deborah Gail Rosenthal

Trusts Attorney at Great Neck, NY

4.8   20 reviews
  • State Years
    New York - NY 35 years
    Massachusetts - MA 36 years
  • Licensed for 35 years
    State NY
    Acquired 1988
    Currently Registered No misconduct found
  • Licensed for 36 years
    State MA
    Acquired 1987
    Inactive No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Deborah

Learn Deborah’s areas of practice.


Ms. Rosenthal’s extensive estate planning practice is designed to help assure that the client’s wishes with respect to the disposition of assets are followed, taking into account tax laws. In addition, she represents clients in the probate process. 

Ms. Rosenthal also has unparalleled experience representing companies and individuals in such areas as forming new business entities, drafting form contracts, and writing and negotiating contracts with customers, suppliers, publishers and others; and buying and selling assets, stock and other ownership interests. Her client base has been exceptionally diverse, encompassing sole proprietorships, family businesses, small and medium size entities as well as multinational corporations. 

In her commercial real estate practice, Ms. Rosenthal represents landlords and tenants in lease negotiations and buyers and sellers in the purchase and sale of real estate. She also advises brokers, lenders, mortgage brokers and real estate appraisers on real estate matters. Her highly skilled drafting and negotiation abilities have enabled her to obtain substantial concessions from opposing parties, including multinational corporations and Fortune 100 companies. 

In her residential real estate practice, Ms. Rosenthal advises purchasers, sellers and lenders of residential properties, including houses and cooperative and condominium apartments. Deborah Rosenthal is a widely respected authority in the area of residential real estate transactions and is considered to be one of the best lawyers in Great Neck, Roslyn and Manhasset and a top lawyer in Nassau County.

Deborah graduated from Wellesley College, cum laude, in 1984 and from Cornell Law School, magna cum laude, in 1987 and was admitted to the New York Bar in 1988. She also has an LL.M in Taxation from New York University School of Law. She received the following honors in law school: Order of the Coif and Am Jur award for Commercial Law. After working at three New York City law firms and serving as Assistant General Counsel of a multinational corporation for over 5 years, she opened her own practice in 2002, where she practices in the areas of wills, trusts and estates, guardianships, probate and administration, corporate and real estate. She is Past President of the New York Women’s Bar Association. She just completed a one year term as Treasurer of the Women’s Bar Association of the State of New York, and currently serves as the Vice President of that organization. She is Martindale-Hubbell® Peer Review AV® Rated, 5.0 out of 5.0.


AV Preeminent Peer Review Rating
Client's Choice 2012
Client's Choice


Deborah G. Rosenthal
336 Northern Boulevard
Great Neck, NY, 11021


4.8 / 5.0
  20 customer reviews
5 Star
4 Star
3 Star
2 Star
1 Star
Client's Choice 2012
Client's Choice
Client's Choice is an Avvo award granted to attorneys with a significant number of client reviews over 4 stars in a given year.
Posted by Carole | December 31, 2016
This review is from a person who hired this attorney.
| Hired Attorney
Deborah Gail Rosenthal was a lifesaver: literally. Ms. Rosenthal handled my mother's estate and brought it to a successful victory. Ms. Rosenthal has proven herself to be an honest, trustworthy, and indefatigable attorney whose dedication to her craft exuded in everything she did: from returning phone calls promptly to case preparation. Thank you Ms. Rosenthal, words alone could never express my heartfelt gratitude.
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Posted by Kathy | May 23, 2015
I live in Maine, and lost my father very unexpectedly. I needed an attorney in New York to help settle his estate, including the sale of his house. What seemed like a simple and straightforward case proved to be far more complicated than anyone could have foreseen, and as a result I worked with Deborah for well over a year. Her knowledge, experience, and responsiveness far exceeded my expectations. She provided outstanding legal support, with great sensitivity -- she never forgot that I was a daughter as well as an executor. I am so fortunate to have found Deborah, and to have had her guidance and expertise throughout a very difficult time.
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Posted by Debbie & Bill | May 21, 2024
This review is from a person who hired this attorney.
| Hired Attorney
Excellent Lawyer!
Deborah gets the job done! We found Ms. Rosenthal to be knowledgeable, ethical, reliable and very professional. She is also accessible, always returns calls and messages promptly. We had a long and difficult journey and Deborah guided us through all the twists and turns and the end result was what we hoped for. Thank you, Deborah for a job well done!
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Posted by Marina | December 12, 2022
This review is from a person who hired this attorney.
| Hired Attorney
Outstanding and the absolute best!
Deborah has represented me for several years now. She is the most professional attorney I have ever dealt with and the most dedicated to her work. She is ethical and has had excellent communication with me through all of the work she has done for me. I would very strongly recommend Deborah Rosenthal without any hesitation. She’s absolutely the best!
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Posted by stuart | July 21, 2022
This review is from a person who hired this attorney.
| Hired Attorney
Totally Wonderful Experience
My Brother passed away suddenly & I was appointed Executor of his estate. Dealing w/ a complicated Last Will, acquiring Letters of testamentary, amazingly detailed estate accounting, interaction/negotiations w/ 'other' lawyers, Deborah Rosenthal handled it all so professionally, She was always available to take your calls, answered all emails promptly & always so fair in the billing . I highly recommend her .
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Posted by Jeffrey | December 10, 2019
This review is from a person who hired this attorney.
| Hired Attorney
Estate settlement with my sister
Last year I was in the middle of a four year battle with my sister who was challenging our father's Will / Trust. Suddenly my lawyer passed away due to a tragic accident, and I needed to find new counsel. I did a search for lawyers with expertise in settling Will / Trust / Estates. I viewed several websites and when I came upon Ms Rosenthal's I knew I had struck gold. I learned of her thirty years of practice, and that her peers gave her outstanding marks, and clients gave her excellent reviews. I also learned that Deborah was past president, and current vice-president of N.Y. Women's Bar Association, and I was further impressed by her community service. I called Deborah, explained my predicament, and was relieved to hear her compassion, understanding, and optimism to reach a settlement which would honor the intention of my father's Last Will. After our first meeting, in which I gave her the four years of documents, Deborah quickly formulated a proposed settlement. The first offer she made was so powerful and convincing, that when my sister made a counter offer, the result was a 90% victory for my side, which we accepted, and the battle was over with dad's Will being fully realized without litigation, and amicably for both sides.
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Posted by Richard | June 20, 2018
This review is from a person who hired this attorney.
| Hired Attorney
Long distance Estate handling
Having to handle my mother's Estate from Chicago it was important to find a good reliable attorney. Ms. Rosenthal came highly recommended. There was no time wasted in preparing and filing the proper paper work, resulting in a quick turn around from the State. The communication was exceptional. Her expertise made the entire process including the sale of the house painless. I am very grateful she came highly recommended and I do not hesitate to give her my highest recommendation. Thank you Deborah and Kim.
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Posted by Madeleine | March 6, 2018
This review is from a person who hired this attorney.
| Hired Attorney
Wonderful resource!
Deborah helped my sister and I with a prolonged estate settlement. There were many challenges and she navigated us through them with sensible advice and a patient and flexible approach. We highly recommend Deborah!
Posted by Estate Executor | May 14, 2015
Estate Settlement
Deborah's keen knowledge of real estate law was extraordinarily helpful in settling my family's estate. She is methodical, organized, and concise. She is quick to respond to any communication via telephone or e-mail. She clearly and precisely mapped out decision-making options, yet was receptive to viable professional input. Deborah is very approachable, pleasant, and patient. I highly recommend her.
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Posted by Patti | June 10, 2014
Never write reviews
Deborah is knowledgeable in all phases of Real Estate. I have had the pleasure to work with her with a mutual client. She is always available to take your calls and to get the deal done. She is no nonsense. I have extensive dealing with attorneys, as I am a real estate broker for more then 20 years, I would highly recommend her.
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Posted by anonymous | January 5, 2014
Comprehensive Legal Knowledge and Insightful Professional
What started for me as a simple Real Estate transaction was thrust into a very complicated Estate issue. I wound up in the midst of a combination of five real estate, probate and trustee lawyers, who did nothing more than waste my time and resources. I needed to change my own counsel after months of stagnant litigation and no resolution to my case and was fortunate to find Deborah Rosenthal, Esq. Her comprehensive and insightful knowledge of Real Estate and Probate law enabled me to purchase my new home. I will always be grateful to Deborah and wholeheartedly recommend her legal services.
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Posted by anonymous | August 5, 2009
Excellent Experience!
Deborah Rosenthal was instrumental in protecting my interests in a very unique Real Estate transaction. Her knowledge, assertiveness and communication skills created a very controlled atmosphere during several hectic encounters. I’m looking forward to utilizing her skills in other facets of my business.
Posted by anonymous | May 22, 2009
Superb Attorney
I fonud Ms Rosenthal very knowledgable, organized, thorough,insightful, easily accessable and allways available, and to top it all,personable with a good sense of humor. These qualities i found comforting and reassuring as i undertook the new task of executor of my Dad's estate. She was a pleasure to work with with.
Posted by anonymous | May 21, 2009
She's capable, honest, and very knowledgeable
I have dealt with Ms Rosenthal three times over the past few years regarding business contracts, and found her to be exceptional. I have had other attorneys in the past and there's no comparison. She's reasonably priced as well.
Posted by anonymous | May 21, 2009
Highly Recommended
Thorough, knowledgeable, experienced, helpful and easy to work with. And very practical. Gets the job done.
Posted by anonymous | May 20, 2009
Sale of Privately Held Company
I worked closely with Ms. Rosenthal with regards to the sale of a privately held New York City based jewelry company. Ms. Rosenthal also worked extremely well with me as well as an out of state attorney also retained by me in regards to this sale. Many technical finepoints were required in order to facillitate this some what difficult transaction. Ms. Rosenthal had a great understanding in helping to facllitate and negotiate the fine details for the sale of my company. Ms. Rosenthal is extremely attentive, extremely conscientious and and extremely well versed in creating and reviewing all documents required for the sale of a New York based privately held company. in all transaction documents required to
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Posted by anonymous | May 20, 2009
best attorney review
Deborah Rosenthal is the best attorney that I have ever used. She is responsive, friendly, capable and intelligent. I could not ask for a better attorney. I will use her to handle any legal matter that I have.
Posted by anonymous | May 20, 2009
Estate of Amond Forrest
Deborah Rosenthal was articulate, professional, knowledgeable and patient in a very difficult probate case involving my aunt's estate. The emotional support and strength she provided me was an additional bonus. I highly recommend her.
Posted by anonymous | May 20, 2009
Unparalleled Legal Authority in Trusts and Estates
This lawyer is a leader without peer in the area of trusts and estates and has mastered the art and science of its most subtle nuances. There can be no better lawyer than Deborah G. Rosenthal in this dynamic, fast-paced legal specialty. She receives my very highest recommendation.
Posted by anonymous | June 24, 2017
This review is from a person who hired this attorney.
| Hired Attorney
I have to assume that those who have not had a positive experience...
Have not reviewed her. I hired her and found it almost impossible to receive prompt return calls, clear strategy, and helpful direction. I will only say this...I had a major issue in her transparency regarding billing.
Response from Deborah Rosenthal July 10, 2017
It is unfortunate that this reviewer has chosen to remain anonymous. Accordingly, the reviewer has not given me a chance to address his or her concerns directly. I would welcome such contact. I strive to provide exceptional service to each and every one of my clients, including but not limited to, promptly returning telephone calls and providing transparent billing. Please look at all of my other reviews and understand that one individual’s perception is not the reality for the almost all of my clients.
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We have not found any cost information for this lawyer


AVVO RATING 10.0 (Superb)

Work Experience

  • Owner
  • Rosenthal, Attorneys at Law, P.C.
  • 2002 - Present
  • Assistant General Counsel
  • The BOC Group, Inc.
  • 1997 - 2002
  • Corporate & Securities Associate
  • Hertzog, Calamari & Gleason
  • 1995 - 1997
  • Corporate & Securities Associate
  • Squadron, Ellenoff, Plesent & Sheinfeld
  • 1992 - 1995
  • Tax Associate
  • Dewey Ballantine
  • 1988 - 1991
  • Judicial Law Clerk
  • The Honorable John M. Greaney, Chief Justice
  • 1987 - 1988
View all work experience


  • New York University School of Law
  • Master of Laws (in Taxation)
  • 1991
  • Cornell Law School
  • JD - Juris Doctor
  • 1987
  • Wellesley College
  • A.B.
  • 1984


  • New York Women's Bar Association
  • President
  • 2016 - Present
  • New York Women's Bar Association
  • Treasurer
  • 2013 - Present
  • Association of the Bar of New York City
  • 1988 - Present
  • New York Women's Bar Association
  • Corresponding Secretary
  • 2012 - 2013
  • New York Women's Bar Association
  • Judiciary Committee Co-Chair
  • 2012 - 2014
  • New York Women's Bar Association
  • Member - Board of Directors
  • 2011 - 2012
  • New York Women's Bar Association
  • Co-Chair - Solo and Small Law Firm Committee
  • 2009 - 2013
View all associations

Languages Spoken

  • English

Honors and Awards

  • New York Legal Award - Distinguished Leader
  • New York Law Journal
  • 2023
  • Named Top Lawyers of Long Island in area of Trusts and Estates
  • Herald
  • 2023
  • Named to Law Power 100
  • City & State of New York
  • 2023
  • Recipient of an Outstanding Women in Law Award
  • Hofstra University School of Law
  • 2021
  • AV Preeminent 5.0 out of 5 Peer Review Rated
  • Martindale-Hubbell
  • 2014
  • Fellow
  • American Bar Foundation
  • 2012
  • Order of the Coif
  • Cornell Law School
  • 1987
  • Magna Cum Laude
  • Cornell Law School
  • 1987
  • Cum Laude
  • Wellesley College
  • 1984
View all awards


  • Cornell International Law Journal
  • Separate Identity, Tax Treaty Interpretation, and Unilateral Treaty Override: An Analysis of Revenue Rulings 84-152, and 84-153, 20 Cornell Int’l L.J. 443
  • 1987

Speaking Engagements

  • Is starting your own practice something you should think about?
  • Ethics Considerations
  • 2009

Attorney endorsements

Received (5)
Given (5)
Endorse Deborah
Real estate Attorney | Aug 17
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Guardianship Attorney | Feb 18
Relationship: Worked together on matter
"I endorse this lawyer."
Business Attorney | Feb 12
Relationship: Fellow lawyer in community
"Deborah is an excellent business attorney. She is a zealous advocate for her clients and highly respected in the legal community."
Business Attorney | Jul 13
Relationship: Fellow lawyer in community
"Deborah is a professional and an excellent attorney. I would not hesitate to recommend her services to a client."
Business Attorney | Sep 16
Relationship: Co-worker
"I worked with Deborah on a number of corporate projects when we were colleagues at Squadron, Ellenoff and have continued to stay in touch with her. Deborah is incisive, articulate, knowledgeable in her field and dedicated to her clients. I would strongly recommend her to prospective clients."
Corporate and incorporation
Contracts and agreements
Intellectual property
Intellectual property
Estate planning