Atty. John M. Sullivan

Atty. John M. Sullivan

Mr. John M.

Portland Portland 45 yrs experience 45 year
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Profile Summary

About John M. Sullivan at a glance

John M. Sullivan is a Managing Partner based in Portland, Maine, practicing at Preti, Flaherty, Beliveau & Pachios, PLLP. They have 45+ years of legal experience, licensed to practice since 1981. Their practice focuses on business, bankruptcy, m&a, and international. Admitted to practice in New Hampshire (1981), Massachusetts (2001), and Maine (2007). Educated at Washington & Lee University (J.D., 1981) and Bowdoin College (B.A., 1978). Recognitions include AV Preeminent. Serands clients in Portland, ME and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. John M. Sullivan is a lawyer practicing mergers and acquisitions, bankruptcy law, banking law and 3 other areas of law
  • John received a B.A. degree from Bowdoin College in 1978, and has been licensed for 45 years
  • John practices at Preti, Flaherty, Beliveau & Pachios, LLP in Portland, ME and 1 other location

Practice Areas Explained

John M. Sullivan's Areas of Practice

Each practice area below reflects the types of cases John M. Sullivan handles, with a brief overview of what that area of law covers.

Business & Corporate Law

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

John M. Sullivan is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Maine →

Bankruptcy & Debt

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

John M. Sullivan is one of 105,321 bankruptcy attorneys indexed nationally. Browse bankruptcy attorneys in Maine →

Mergers & Acquisitions

John M. Sullivan is one of 49,731 m&a attorneys indexed nationally. Browse m&a attorneys in Maine →

International Law

International law attorneys for cross-border transactions, trade, foreign investment, and treaties.

John M. Sullivan is one of 40,133 international attorneys indexed nationally. Browse international attorneys in Maine →

Jurisdictional Context

Why local counsel matters in Maine

Practicing law in Maine. Legal matters in Maine are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Portland are typically filed in the local municipal court or the appropriate Maine state district court, depending on subject matter and amount in controversy. An attorney licensed in Maine 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 Maine courts without local counsel or pro hac vice admission.

Looking for additional Maine attorneys? Browse all attorneys in Portland or all attorneys in Maine.

Frequently Asked

Common questions about John M. Sullivan

Where is John M. Sullivan's law office located?
John M. Sullivan's law practice is located in Portland, Maine. The firm is Preti, Flaherty, Beliveau & Pachios, PLLP. You can contact the office directly through this profile page.
What practice areas does John M. Sullivan handle?
John M. Sullivan focuses on business, bankruptcy, m&a, international. Each practice area listed reflects experience handling cases of that type in Maine.
How long has John M. Sullivan practiced law?
John M. Sullivan has 45+ years of legal experience and has been licensed since 1981.
Where did John M. Sullivan go to law school?
John M. Sullivan earned their education at (J.D., 1981); (B.A., 1978).
How can I contact John M. Sullivan for a consultation?
You can contact John M. Sullivan 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 John M. Sullivan received?
John M. Sullivan's notable recognition includes: AV Preeminent.

Education

J.D.
Washington & Lee University
- 1981
B.A.
Bowdoin College
- 1978

Awards

AV Preeminent

Bar Admissions

New Hampshire
Admitted: 1981
Massachusetts
Admitted: 2001
Maine
Admitted: 2007

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