Atty. Matthew Robert Diament

Atty. Matthew Robert Diament

Matthew Robert Diament is a lawyer practicing elder law, guardianship, estate planning. Matthew received a B.A. degree from Binghamton University, and has been licensed for 16 years.

Rockville Centre Rockville Centre 16 yrs experience 16 year
Call (516) 402-3446 Book Appointment

Profile Summary

About Matthew Robert Diament at a glance

Matthew Robert Diament is an Associate based in Rockville Centre, New York, practicing at Kassoff, Robert & Lerner, LLP. They have 16+ years of legal experience, licensed to practice since 2010. Their practice focuses on estate planning, poa, and elder law. Admitted to practice in New York (2010). Educated at Benjamin N. Cardozo School of Law J.D. cum laude (—) and Binghamton University B.A. History Binghamton University B.A. cum laude (—). Serands clients in Rockville Centre, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Matthew Robert Diament is a lawyer practicing elder law, guardianship, estate planning
  • Matthew received a B.A. degree from Binghamton University, and has been licensed for 16 years
  • Matthew practices at Kassoff, Robert & Lerner, LLP in Rockville Centre, NY

Practice Areas Explained

Matthew Robert Diament's Areas of Practice

Each practice area below reflects the types of cases Matthew Robert Diament handles, with a brief overview of what that area of law covers.

Estate Planning & Probate

An estate planning attorney prepares wills, trusts, powers of attorney, and healthcare directives to protect your family and pass on your assets.

Matthew Robert Diament is one of 226,537 estate planning attorneys indexed nationally. Browse estate planning attorneys in New York →

Power of Attorney

Matthew Robert Diament is one of 33,188 poa attorneys indexed nationally. Browse poa attorneys in New York →

Elder Law

Elder law attorneys for Medicaid planning, long-term care, guardianship, conservatorship, and elder abuse.

Matthew Robert Diament is one of 53,430 elder law attorneys indexed nationally. Browse elder law attorneys in New York →

Jurisdictional Context

Why local counsel matters in New York

Practicing law in New York. Legal matters in New York are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Rockville Centre are typically filed in the local municipal court or the appropriate New York state district court, depending on subject matter and amount in controversy. An attorney licensed in New York brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in New York courts without local counsel or pro hac vice admission.

Looking for additional New York attorneys? Browse all attorneys in Rockville Centre or all attorneys in New York.

Frequently Asked

Common questions about Matthew Robert Diament

Where is Matthew Robert Diament's law office located?
Matthew Robert Diament's law practice is located in Rockville Centre, New York. The firm is Kassoff, Robert & Lerner, LLP. You can contact the office directly through this profile page.
What practice areas does Matthew Robert Diament handle?
Matthew Robert Diament focuses on estate planning, poa, elder law. Each practice area listed reflects experience handling cases of that type in New York.
How long has Matthew Robert Diament practiced law?
Matthew Robert Diament has 16+ years of legal experience and has been licensed since 2010.
Where did Matthew Robert Diament go to law school?
Matthew Robert Diament earned their education at (—); (—).
How can I contact Matthew Robert Diament for a consultation?
You can contact Matthew Robert Diament directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

Benjamin N. Cardozo School of Law J.D. cum laude
- In Progress
Binghamton University B.A. History Binghamton University B.A. cum laude
- In Progress

Bar Admissions

New York
Admitted: 2010

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