Atty. Peter R. Stambleck

Atty. Peter R. Stambleck

A founder and partner of MSSG, Peter uses his unique background as a former CPA at a Big Four accounting firm and his deep experience in substantial family law cases to help clients navigate all aspects of complex divorce and family law matters. Peter works closely with clients to counsel them through both financial and custody aspects of divorce.

New York New York 22 yrs experience 22 year
Call (332) 278-4745 Email Book Appointment

Profile Summary

About Peter R. Stambleck at a glance

Peter R. Stambleck is a Founder and Partner based in New York, New York, practicing at Mosberg Sharma Stambleck Gross LLP. They have 22+ years of legal experience, licensed to practice since 2004. Their practice focuses on divorce, child custody, family law, child support, and alimony. Admitted to practice in New York (2004), Connecticut (2005), and U.S. Supreme Court (2007). Educated at Brooklyn Law School (J.D., 2003) and Indiana University (B.S., 1998). Recognitions include AV Preeminent. Serands clients in New York, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • A founder and partner of MSSG, Peter uses his unique background as a former CPA at a Big Four accounting firm and his deep experience in substantial family law cases to help clients navigate all aspects of complex divorce and family law matters
  • Peter works closely with clients to counsel them through both financial and custody aspects of divorce
  • He is a tireless advocate for his clients, a creative problem solver, and, when necessary, an experienced litigator
  • Peter’s cases regularly involve the valuation of privately held businesses and alternative investments, where he is able to apply his financial and accounting background, and provide his clients with a skill set and perspective invaluable in family law matters
  • With substantial experience representing high net worth and high profile clients across a broad spectrum of industries, Peter’s family law matters include divorce, child custody and access, spousal and child support, paternity, prenuptial, postnuptial and separation agreements
  • Peter has established himself as a leader in the New York family law community
  • He serves as Vice Chair of the New York State Bar Association’s Family Law Section and was appointed Co-Chair of its Legal Education Committee
  • On the national level, Peter is a Fellow of the American Academy of Matrimonial Lawyers and an active member and leader of the Family Law Section of the American Bar Association
  • Peter earned his Bachelor of Science in finance and accounting from Indiana University’s Kelley School of Business and his Juris Doctor from Brooklyn Law School
  • He is admitted to the New York and Connecticut State Bars
  • AWARDS 2015-21 Named Top Rated Family Law Attorney by Super Lawyers New York 2020 Martindale-Hubbell AV Preeminent,® Peer Review Rating
  • This is the highest possible attorney peer review rating in both legal ability and ethical standards. 2011-14 Selected to Rising Stars by Super Lawyers New York ASSOCIATIONS 2021-23 Vice Chair, New York State Bar Association, Family Law Section 2015-22 Co-Chair, New York State Bar Association, Family Law Section‘s Legal Education Committee 2016-22 Fellow, American Academy of Matrimonial Lawyers 2007-22 Member, Family Law Section, American Bar Association

Practice Areas Explained

Peter R. Stambleck's Areas of Practice

Each practice area below reflects the types of cases Peter R. Stambleck handles, with a brief overview of what that area of law covers.

Divorce

A divorce attorney guides you through property division, spousal support, custody, and the final decree — contested or uncontested.

Peter R. Stambleck is one of 50,487 divorce attorneys indexed nationally. Browse divorce attorneys in New York →

Child Custody & Visitation

Peter R. Stambleck is one of 31,241 child custody attorneys indexed nationally. Browse child custody attorneys in New York →

Family Law

Family law attorneys handle divorce, child custody, child support, adoption, prenups, and protective orders. Find verified family lawyers near you.

Peter R. Stambleck is one of 187,066 family law attorneys indexed nationally. Browse family law attorneys in New York →

Child Support

Peter R. Stambleck is one of 24,688 child support attorneys indexed nationally. Browse child support attorneys in New York →

Alimony / Spousal Support

Peter R. Stambleck is one of 10,688 alimony attorneys indexed nationally. Browse alimony 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 New York 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 New York or all attorneys in New York.

Frequently Asked

Common questions about Peter R. Stambleck

Where is Peter R. Stambleck's law office located?
Peter R. Stambleck's law practice is located in New York, New York. The firm is Mosberg Sharma Stambleck Gross LLP. You can contact the office directly through this profile page.
What practice areas does Peter R. Stambleck handle?
Peter R. Stambleck focuses on divorce, child custody, family law, child support, alimony. Each practice area listed reflects experience handling cases of that type in New York.
How long has Peter R. Stambleck practiced law?
Peter R. Stambleck has 22+ years of legal experience and has been licensed since 2004.
Where did Peter R. Stambleck go to law school?
Peter R. Stambleck earned their education at (J.D., 2003); (B.S., 1998).
How can I contact Peter R. Stambleck for a consultation?
You can contact Peter R. Stambleck 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.
What awards or recognition has Peter R. Stambleck received?
Peter R. Stambleck's notable recognition includes: AV Preeminent.

Education

J.D.
Brooklyn Law School
- 2003
B.S.
Indiana University
- 1998

Awards

AV Preeminent

Bar Admissions

New York
Admitted: 2004
Connecticut
Admitted: 2005
U.S. Supreme Court
Admitted: 2007

Reviews

4.9
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