Established Manhattan Practice

23+ Years ofNYC LegalExcellence

Discreet, decisive representation for corporations, high-net-worth families, and individuals who cannot afford to lose. Two decades of courtroom judgment brought to every matter — from the first phone call to the final signature.

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  • Admitted NY State & S.D.N.Y.
  • Trial-tested since 2003
  • Direct attorney access
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Years in Practice
Continuous NY practice since 2003
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Matters Handled
Across five practice areas
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Favorable Outcomes
Settled or won at trial
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NY Bar Certified
In good standing since 2003
Practice Areas

One office. Five disciplines.

A general practice means your business dispute, your lease, and your family’s estate plan are all handled by the same attorney — who already knows the history.

01

Corporate Law

Formation, governance, contracts, and transactions built to survive scrutiny.

Counsel to closely held companies, funds, and founders across formation, financing, and exit — with the drafting discipline of an attorney who has litigated the agreements others wrote.

  • Entity formation & governance
  • M&A and asset purchases
  • Commercial contracts
  • Shareholder disputes
02

Civil Litigation

Aggressive, well-prepared advocacy in state and federal court.

From emergency injunctions to multi-week trials, matters are prepared for verdict from day one — which is precisely why most of them settle on favorable terms.

  • Commercial & contract disputes
  • Emergency injunctive relief
  • Appeals
  • Alternative dispute resolution
03

Real Estate

Closings, leases, and title matters across the five boroughs.

Residential and commercial transactions handled end to end — contract through closing table — with landlord/tenant and co-op board experience specific to New York City.

  • Residential & commercial closings
  • Commercial leasing
  • Co-op & condo board matters
  • Title and lien resolution
04

Estate Planning

Wills, trusts, and succession planning that protect families quietly.

Plans structured to move wealth privately and without conflict, including Surrogate’s Court administration and contested estate representation when families disagree.

  • Wills & revocable trusts
  • Asset protection planning
  • Probate & administration
  • Contested estates
05

Criminal Defense

Immediate, confidential defense at every stage of a case.

Representation from arrest and arraignment through trial in New York State and federal court, with particular attention to professional licenses and reputational exposure.

  • Arraignment & bail
  • White-collar investigations
  • DWI & misdemeanor defense
  • Felony trial defense
Not sure where you fit?

Most matters begin as a single question.

Describe the situation in your own words. You will get a straight answer about whether you need a lawyer at all — at no cost.

MLEst. 2003 · New York
Bar Admissions & Memberships
  • New York State Bar (2003)
  • U.S. District Court, S.D.N.Y.
  • U.S. District Court, E.D.N.Y.
  • U.S. Court of Appeals, Second Circuit
  • New York State Bar Association
  • New York City Bar Association
The Attorney

Mateo A. RiveraESQ.

For twenty-three years, clients have come to this practice at the moment a problem stops being routine. What they receive is not a case number in an assembly line — it is direct, senior attention from a lawyer who has stood before New York judges for two decades.

The practice was built deliberately as a general one. A family business rarely has a single legal problem: it has a contract dispute, a lease, a succession question, and an executive with a subpoena — often in the same year. Keeping those matters under one roof means nothing is explained twice and nothing falls between attorneys.

Every engagement begins the same way: a candid assessment of what the matter is genuinely worth, what it will realistically cost, and whether litigation is the right instrument at all. Clients are told the unwelcome answer early, when it is still cheap to hear.

Career Timeline
  1. 2000Juris DoctorFordham University School of Law — Moot Court Board, Dean’s List.
  2. 2003Admitted to the New York BarBegan practice in commercial litigation at a Midtown firm.
  3. 2009Federal AdmissionAdmitted to the U.S. District Courts for the Southern and Eastern Districts of New York.
  4. 2014Founded the PracticeOpened an independent general practice serving businesses and families across NYC.
  5. 2019Landmark Commercial VerdictSecured a seven-figure judgment for a family manufacturing business after a three-week trial.
  6. Today1,000+ Matters LaterA referral-driven practice representing clients in all five boroughs.
Client Outcomes

What clients say afterwards.

We had been told the case would take four years and cost more than it was worth. It was resolved in eleven months, on our terms, and I was never once left wondering what was happening.

D. Whitfield
CFO, Manufacturing Group
01 / 06
Matter Type
Litigation
Outcome

Seven-figure recovery before trial

Verified client

Prior results do not guarantee a similar outcome. Client names are abbreviated or withheld to protect confidentiality.

Consultation

Tell me what happened. I’ll tell you where you stand.

Initial consultations are confidential and free of charge. Most enquiries receive a reply the same business day.

Submitting this form does not create an attorney-client relationship. Please do not include confidential information until an engagement letter is signed.

Office

Urgent matters answered outside business hours.

Financial District

48 Wall Street, 11th Floor
New York, NY 10005

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