Copy of Attorneys

Your Trusted ADVISOR


Our Attorneys



Joan Lensky Robert

A tireless advocate for clients challenged by age and disability-related issues, Ms. Robert offers skilled, compassionate representation to those dealing with elder care and special needs planning matters.

JOAN LENSKY ROBERT is of counsel to the Robert Legal Group and is one of the preeminent elder law and special needs planning attorneys in the country. Ms. Robert is a graduate of Skidmore College, where she was a member of Periclean, the Skidmore College Honor Society, the University of Pennsylvania, where she studied pursuant to a Ford Foundation Fellowship, and Touro College School of Law, summa cum laude, where she was the recipient of a Deans Fellowship and was valedictorian of the part time division. Prior to entering the practice of law, Ms. Robert taught French with the Valley Stream Central High School District.

Ms. Robert served as Chair of the New York State Bar Association Elder Law Section from 2003-2004 and served as Co-Chair of its Special Needs Planning Committee from 2006-2009. She is now Co-Chair of the Section’s Mentoring program. She is a past member of the Committee of Persons with a Disability and of the Committee on Committees of the New York State Bar Association. She is an attorney member of the Guardianship Advisory Committee formed by the Office of Court Administration. She received a Lifetime Achievement Award from the Elder Law Section in January, 2014. She has been named a Super Lawyer every year since 2014.

A past Director of the Nassau County Bar Association and a past chair of its Elder Law/Social Services/Health Advocacy Committee, Ms. Robert served as Dean of the Nassau Academy of Law. She served as a member of the Board of Directors of the Nassau County Bar Association and as a member of its nominating committee.

Ms. Robert is Past President of the New York Chapter of NAELA, the National Academy of Elder Law Attorneys and was a Co-Chair of the Special Needs Planning Summit sponsored by NAELA. She is a member of the Publications and Programs Task Force and is Co-Chair of the State Chapters Committee of NAELA. She received the NAELA award as outstanding member of the New York Chapter in 2012 and also received the Theresa Foundation Award for outstanding service and advocacy to persons with special needs, sponsored by NAELA.

Ms. Robert has been honored for outstanding service by the Long Island Alzheimer’s Foundation, Project Real and the National Multiple Sclerosis Society.. She served on the Board of Editors of the Bill of Particulars, the publication of the New York State Trial Lawyers Association, which honored her as outstanding downstate speaker. She is a past Editor in Chief of the New York Elder Law and Guardianship Newsletter. She co-wrote the chapter on Special Needs Planning in the book Guardianship Practice in New York State and wrote the chapters on Medicaid liens and planning in Personal Injury Actions in New York published by the New York State Bar Association. The author of numerous articles for community groups and professional groups concerning elder law and disability law, Ms. Robert has been a faculty member at various Bar Association programs concerning Elder Law, Supplemental Needs Trusts and asset preservation, and has been an instructor at certified training programs for Guardians, Supplemental Needs Trust Trustees and Court Evaluators.

Ms. Robert and her husband, Charles, are the proud parents of Heather Robert Coffman, Esq. and Jay Robert, Esq., an associate at Kassoff, Robert & Lerner, LLP. They are the doting grandparents of Naomi Coffman and Leo Coffman, residents of San Francisco, and Edie Robert and Ike Robert, of Brooklyn.


JAY ROBERT is the CEO of the Robert Legal Group, practicing in the areas of elder law, special needs planning, trusts and estates, guardianships, and Medicaid.

Jay is a board member of the New York Chapter of the National Academy of Elder Law Attorneys and a member of the New York State Bar Association, Elder Law and Special Needs Planning and Trusts and Estates Sections, and the New York State Trial Lawyers Association. Jay is a 2017 and 2018 Selectee as a Rising Star by SuperLawyers.  He was chair of the March 2019 NYSBA joint Elder Law and Special Needs and Torts, Insurance and Compensation Sections CLE program, “Protecting Personal Injury Recoveries for Persons on Public Benefits.” 

Jay’s practice focuses on advising elderly and special needs clients and their families with respect to long term health care, asset preservation, government benefits and estate planning. Jay works closely with personal injury and medical malpractice attorneys and has advised countless injury victims on the interrelationship between their lawsuit recoveries and government benefits. represents estate fiduciaries in both appointment and complex proceedings in Surrogate’s Court. Prior to establishing the Robert Legal Group, Jay worked with Kassoff Robert & Lerner, LLP, one of New York’s premier Elder Law firms, and before that Jay was a corporate associate at Kramer Levin Naftalis & Frankel, LLP, a New York City law firm where he represented publicly traded and privately held companies and private equity firms with respect to business formation, liability protection, antitrust law and negotiating and executing mergers and acquisitions. 

Jay is a graduate of the Benjamin N. Cardozo School of Law, cum laude, where he was an Associate Editor of the Cardozo Law Review and named to the Order of the Coif. During law school Jay studied alternative dispute resolution and was a quarter-finalist at the 4th Annual ICC International Commercial Mediation Competition in Paris, France. Jay also was a teaching assistant in the area of Tort law for Professor Eva Hanks.  He is a graduate of Tulane University, cum laude, where he was a Dean's Honors Scholar and graduated with a B.A. in History.

Prior to his career in law, Jay was a drummer in various New Orleans rock and roll bands, including Jonas Risin' and Pocketfoxx. Jay and his wife, Catey Hill, a renowned personal finance journalist and author of the book, Shoo Jimmy Choo! The Modem Girl's Guide to Spending Less and Saving More, reside in Brooklyn, New York with their daughter Edie and son Ike.


MATTHEW DIAMENT is the managing attorney of the Robert Legal Group. The firm concentrates in the areas of elder law, guardianships, special needs law and estates.

Matthew is a graduate of Binghamton University, cum laude, where he graduated with a BA in History, and the Benjamin N. Cardozo School of Law, cum laude, where he was an Associate Editor of the Cardozo Law Review and named to the Order of the Coif. During law school Matthew was a legal intern at the Legal Action Center. He was also a participant in the Cardozo Human Rights and Genocide Clinic where he worked on a religious discrimination case and accompanied the legal team to France, where the case was heard before the European Court of Human Rights.

Prior to joining the Robert Legal Group, Matthew was an associate with Kassoff Robert & Lerner for eight years. He also previously worked as a litigation associate at a New York City law firm where he practiced commercial litigation. He has been admitted to practice law in New York since 2010. He is a member of the New York State Bar Association, Elder Law Section. His current practice focuses on Guardianship proceedings in the New York State courts, Special Needs trusts, Medicaid and governmental benefits, and Estate proceedings. Matthew has represented clients in guardianship proceedings in Bronx, New York, Queens, Kings, Suffolk, and Nassau counties.

Matthew and his wife, Erin Carroll Diament, a Nurse Practitioner specializing in women's health, reside in Brooklyn, New York along with their daughter Tessa.