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Matthew Sinkman, Environmental Attorney in New York

Over 18 years of legal practice · focused on Environmental and Litigation

New, NY

Practicing environmental in New York since 2008.

18+
Years practicing
2
Bar admissions

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Quick answer

Matthew Sinkman is an attorney based in New York, NEW YORK. The practice focuses on Environmental and Litigation. Matthew has over 18 years of legal experience.

Based in
New York, NEW YORK
Experience
over 18 years
Known for
Environmental · Litigation
  • Handles Environmental and Litigation matters from New York, NEW YORK.
  • Over 18 years of practice as a licensed attorney.
  • Recognized with Best Lawyers in America — Environmental Law (2026).

About Matthew Sinkman: Matthew Sinkman is an attorney based in New York, NEW YORK. The practice focuses on Environmental and Litigation. Matthew has over 18 years of legal experience.

Areas of practice

Legal matters Matthew takes on

Matthew concentrates on environmental and litigation. Each area below outlines the kind of case Matthew handles, typical outcomes to expect, and how the intake process starts.

Environmental cases in New York

Matthew takes environmental matters in New York. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Matthew agrees to represent you.

Litigation cases in New York

Matthew takes litigation matters in New York. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Matthew agrees to represent you.

Biography

Meet Matthew Sinkman — environmental lawyer in New York

Matthew Sinkman is an attorney based in New York, NEW YORK. The practice focuses on Environmental and Litigation. Matthew has over 18 years of legal experience.

Mr. Sinkman represents plaintiffs and defendants in Superfund and other litigation matters regarding the cleanup of hazardous waste sites. He also represents buyers, sellers, and developers of contaminated properties, including parties seeking qualification for tax credits and other benefits provided by New York State’s Brownfield Cleanup Program. Mr. Sinkman’s practice also includes assisting clients with a wide variety of environmental compliance matters.

Mr. Sinkman is a former Assistant Attorney General in the New York State Office of the Attorney General’s Environmental Protection Bureau. In that role, he represented New York State and its agencies in Superfund matters; litigation against the federal government and private parties seeking in excess of $50 million for PFAS contamination at 69 sites; litigation against an international organization seeking more than $40 million in flooding damages; and other environmental enforcement matters.

Prior to joining the Attorney General’s Office, Mr. Sinkman was in private practice in New York City.

Matthew's approach to environmental cases

Mr. Sinkman represents plaintiffs and defendants in Superfund and other litigation matters regarding the cleanup of hazardous waste sites. He also represents buyers, sellers, and developers of contaminated properties, including parties seeking qualification for tax credits and other benefits provided by New York State’s Brownfield Cleanup Program. Mr. Sinkman’s practice also includes assisting…

Clients Matthew works with

Matthew reviews new inquiries case-by-case for environmental and litigation matters across New York.

Credentials

Education, bar admissions, and languages

  • University of Michigan

    B.A. · 2001

  • Boston University School of Law

    J.D. · 2007

Jurisdictions

Matthew's state bar admissions

  • New Jersey, New Jers

    2022 · ACTIVE

  • New York, New York S

    2008 · ACTIVE

Matthew studied at B.A. in University of Michigan and J.D. in Boston University School of Law.

Law school and academic background

Matthew completed B.A. in University of Michigan and J.D. in Boston University School of Law. Formal legal training is one signal of substantive knowledge — the day-to-day practice Matthew runs in New York is where that training gets applied to real client questions.

Recognition

Recognition and thought leadership

Matthew has received 6 formal recognitions from bar associations, industry bodies, and peer-review services.

  • Best Lawyers in America — Environmental Law

    2026

  • Best Lawyers in America — Litigation - Environmental

    2026

  • Best Lawyers in America — Awards:

    2026

  • Best Lawyers in America — Included on the

    2026

  • Best Lawyers in America — New York Metro Super Lawyers Rising Stars

    2026

  • Best Lawyers in America — list, Business Litigation, 2014-2016

    2026

Legal awards and honors

Best Lawyers in America — Environmental Law (2026). Best Lawyers in America — Litigation - Environmental (2026). Best Lawyers in America — Awards: (2026). Best Lawyers in America — Included on the (2026). Best Lawyers in America — New York Metro Super Lawyers Rising Stars (2026). Best Lawyers in America — list, Business Litigation, 2014-2016 (2026).

Locations

Office locations for Matthew Sinkman in New York

Matthew's primary office is at New York, New York, 10119. In-person meetings are by appointment; a phone intake usually comes first.

Main office

New York, New York 10119

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Client feedback

Client reviews of Matthew Sinkman

Matthew has not yet collected verified client reviews on LawyersListed. Reviews here are all from confirmed clients; anonymous ratings are moderated out.

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Hiring guide

How to hire Matthew Sinkman — what to expect in your first consultation

Working with a new environmental attorney should feel structured. Here's how the first two conversations with Matthew usually go, from the moment you request a consult to the day representation begins.

Consultation formats and pricing

Matthew charges for the initial consult. That fee is credited toward representation if you retain Matthew's office.

What to bring to your first meeting

Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; Matthew will tell you what matters and what doesn't.

Questions to ask a environmental attorney in New York

A short list to run through before you commit: How many environmental matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?

Fees & payment

Fees, payment methods, and consultation options for Matthew

Matthew discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in environmental practice — ask which fits.

Hourly rates, contingency fees, and flat-fee options

Every environmental matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. Matthew confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

Matthew's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many environmental practices work with clients on structured schedules.

Frequently asked

Frequently asked questions about Matthew Sinkman

  • How much does it cost to hire Matthew for a environmental case?

    Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Matthew walks through the likely range during the consult so there are no surprises.

  • Does Matthew offer a free consultation?

    Matthew charges for the initial consult; that fee is credited toward representation if you retain Matthew's office. Some environmental attorneys offer free consults — check Matthew's current terms during booking.

  • How long do environmental cases in New York typically take?

    Simple environmental matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Matthew gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

  • Can Matthew take my case if I'm outside New York?

    Matthew is licensed in New York. Matters governed by New York law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Matthew will tell you if the case is a fit or refer you to someone closer to your court.

  • What should I bring to my first meeting with Matthew?

    Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Matthew will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.

  • Is Matthew accepting new environmental clients right now?

    Matthew's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.

Areas served

Environmental attorneys serving Albany and Brooklyn in New York

Matthew handles environmental matters throughout New York. Each city below is a direct link into the search page for verified environmental attorneys in that community.

More counsel

If Matthew's intake is full or the fit isn't right, these environmental attorneys in New York handle similar matters. Every profile below is verified and open to consultations.