Atty. Peter J. Antoszyk

Atty. Peter J. Antoszyk

Peter J. Antoszyk is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law, Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law, Commercial Litigation and Commercial Transactions / UCC Law.

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Banking And Finance Law & More Attorney · Serving Boston, MA

Profile Summary

About Peter J. Antoszyk at a Glance

Peter J. Antoszyk is a business, bankruptcy, and litigation attorney based in Boston, Massachusetts, practicing at Proskauer Rose Llp. Educated at Boston University School of Law (J.D., 1985). Recognitions include Best Lawyers in America — Banking and Finance Law (2026), Best Lawyers in America — Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law (2026), and Best Lawyers in America — Commercial Litigation (2026). Serves clients in Boston, MA and the surrounding metropolitan area.

Verified attorney profile · Updated November 2026

About Peter J. Antoszyk

  • Peter J. Antoszyk is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law, Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law, Commercial Litigation and Commercial Transactions / UCC Law
  • Peter J., who practices law in Boston, Massachusetts, has been recognized since 2016
  • This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Peter J. is held by other top lawyers in the same geographic and legal practice area

Practice Areas Explained

Peter J. Antoszyk's Areas of Legal Practice

Each practice area below reflects the types of cases Peter J. Antoszyk handles, with a practical overview of what that area of law involves and how it may apply to your situation in Boston.

Business & Corporate Law in Boston

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Peter J. Antoszyk is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Massachusetts →

Bankruptcy & Debt in Boston

A bankruptcy attorney can help you eliminate debt, stop creditor harassment, and protect your home through Chapter 7 or Chapter 13.

Peter J. Antoszyk is one of 104,458 bankruptcy attorneys indexed nationally. Browse bankruptcy attorneys in Massachusetts →

Civil Litigation in Boston

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Peter J. Antoszyk is one of 450,750 litigation attorneys indexed nationally. Browse litigation attorneys in Massachusetts →

Jurisdictional Context

Why Local Counsel Matters in Boston

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

Boston Courts and Legal Process

Choosing a Boston-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.

Looking for additional Massachusetts attorneys? Browse all attorneys in Boston or all attorneys in Massachusetts.

Frequently Asked

Common Questions About Peter J. Antoszyk

Where is Peter J. Antoszyk's law office located?
Peter J. Antoszyk's law practice is located in Boston, Massachusetts. The firm is Proskauer Rose Llp. You can contact the office directly through this profile page.
What practice areas does Peter J. Antoszyk handle?
Peter J. Antoszyk focuses on business, bankruptcy, litigation. Each practice area listed reflects experience handling cases of that type in Massachusetts.
Where did Peter J. Antoszyk go to law school?
Peter J. Antoszyk earned their education at (J.D., 1985).
How can I contact Peter J. Antoszyk for a consultation?
You can contact Peter J. Antoszyk 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 J. Antoszyk received?
Peter J. Antoszyk's notable recognition includes: Best Lawyers in America — Banking and Finance Law; Best Lawyers in America — Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law; Best Lawyers in America — Commercial Litigation; Best Lawyers in America — Commercial Transactions / UCC Law; Best Lawyers in America — Special Focus:.

Professional Profile

Why Clients in Boston Choose Peter J. Antoszyk

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Peter J. Antoszyk's practice in the field of business, bankruptcy, and litigation.

Broad Practice Area Coverage

Covering business, bankruptcy, and litigation, Peter J. Antoszyk can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in Boston

A Boston-based practice means Peter J. Antoszyk attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Case Types

Common Legal Issues Peter J. Antoszyk Handles in Boston

Below is a representative sample of the types of matters Peter J. Antoszyk has experience with under Massachusetts law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.

Business formation and structure
Business
Contract drafting and review
Business
Partnership disputes
Business
Merger and acquisition support
Business
Chapter 7 liquidation
Bankruptcy
Chapter 13 repayment plans
Bankruptcy
Debt negotiation
Bankruptcy
Creditor harassment defense
Bankruptcy

This list is illustrative, not exhaustive. Contact Peter J. Antoszyk directly to discuss the specifics of your situation.

Search Reference

How People Find Peter J. Antoszyk Online

Prospective clients searching for legal help in Boston commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like Peter J. Antoszyk.

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Peter J. Antoszyk directly.

Education & Law School Background

J.D.
Boston University School of Law
- 1985

Awards & Professional Honors

Best Lawyers in America — Banking and Finance Law
- 2026
Best Lawyers in America — Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law
- 2026
Best Lawyers in America — Commercial Litigation
- 2026
Best Lawyers in America — Commercial Transactions / UCC Law
- 2026
Best Lawyers in America — Special Focus:
- 2026
Best Lawyers in America — COVID-19
- 2026
Best Lawyers in America — Insolvency and Restructuring
- 2026

Client Reviews & Ratings — Peter J. Antoszyk

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