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Gust Rosenfeld P.L.C.Member
Séan P. O'Brien
Pro

Séan P. O'Brien

5.0
2 reviews

One E. Washington Street, Suite 1600, Phoenix, AZ 85004-2553

Bankruptcy and Creditors' Rights, Litigation, Alternative Dispute Resolution and 3 more

About Séan P. O'Brien

Sean P. O’Brien is the Chair of the firm’s Litigation Practice Group and Co-Chair of the Bankruptcy, Restructuring and Creditors’ Rights Practice Group. He focuses his practice on commercial bankruptcy, restructuring, creditors’ rights, related litigation, appeals as well as mediation. Sean represents institutional clients, corporations, partnerships, and individuals in all areas of creditor and debtor relations.

Sean is an approved panel ADR mediator for the United States Bankruptcy Court. He routinely handles ADR matters in disputes dealing with commercial and consumer bankruptcy, restructuring, and creditors’ rights.

Sean is Board Certified in Business Bankruptcy Law by the American Board of Certification, an American Bar Association-accredited program. He is AV Preeminent rated by Martindale-Hubbell, representing the highest rating in legal ability and ethical standards and also recognized in the Bankruptcy and Creditor-Debtor Rights Law category of The Best Lawyers in America and Southwest Super Lawyers .

Professional Recognition

•The Best Lawyers in America, Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law (2010-2026)
•Southwest Super Lawyers, Bankruptcy (2010-2025)

•Phoenix Magazine 2023 Top Lawyers - Bankruptcy and Reorganization

Community Involvement

•Phoenix Downtown YMCA (Executive Committee; past Chair, Board of Directors)
•CARE

 

Séan P. O'Brien (Phoenix, Arizona) View website

Awards

AV Preeminent Peer Rated
This elite award is granted to attorneys who have been recognized by their peers for their very high ethical standards, with an average peer review score of 4.5 or higher.
Martindale-Hubbell Peer AV

Client Champion Awards

Client Champion awards recognize those attorneys who excel at service as affirmed by their clients. The awards, based on the quantity and quality of an attorney’s Martindale-Hubbell client reviews, demonstrate an ongoing commitment to delivering excellent client service. Award recipients stand out from their peers with a platinum, gold or silver icon.

Champion Badge Silver

At least three reviews and a score of 4.0 or higher.

Champion Badge Gold

At least six reviews and a score of 4.2 or higher.

Champion Badge Platinum

At least ten reviews and a score of 4.5 or higher.

Martindale Peer Awards

A lawyer who receives a minimum threshold of qualifying responses from fellow attorneys can qualify for one of three prestigious Martindale-Hubbell Peer Review Ratings:

Martindale-Hubbell Peer AV Preeminent Rating

AV Preeminent®: The highest peer rating standard. This rating signifies a large number of the lawyer’s peers rank him or her at the highest level of professional excellence for their legal knowledge, communication skills and ethical standards.

Séan P. O'Brien got this award in 2021

Martindale-Hubbell Peer Distinguished Rating

Distinguished: An excellent rating for a lawyer with some experience. This rating indicates the attorney is widely respected by their peers for high professional achievement and ethical standards.

Martindale-Hubbell Peer Notable Rating

Notable: This rating indicates that the lawyer has been recognized by a large number of their peers for strong ethical standards.

Avvo Awards

Avvo Top Contributor

Avvo Top Contributor: The Avvo Top Contributor Award is granted to attorneys who have earned significant contribution points in a given year on our sister site, Avvo.com. Contribution points are earned by answering questions in Q&A, publishing Legal Guides, and other useful contributions to the Avvo community.

Avvo Client Choice

Avvo Client’s Choice: The Avvo Client's Choice Award Badge is granted to attorneys with a significant number of 4+ star reviews in a given year.

Reviews for Séan P.

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Overall Rating
5.0
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Services

Areas of Law

  • Litigation
  • Alternative Dispute Resolution
  • Bankruptcy
  • Other 3
    • Bankruptcy and Creditors' Rights
    • Restructuring
    • Creditors' Rights

Experience

  • Bar Admission & Memberships
    Admissions
    1986, Arizona
    1987, U.S. District Court, District of Arizona and U.S. Court of Appeals, Ninth Circuit
    1998, U.S. Supreme Court
    Memberships

    Professional Associations

    •State Bar of Arizona
    •Past Chair and Executive Committee Member, Bankruptcy Law Section
    •Maricopa County Bar Association
    •Bankruptcy Law Section
    •American Bar Association
    •American Bankruptcy Institute
    •Turnaround Management Association
    •Ninth Circuit Court of Appeals, Lawyer Representative (2017-2020)
    •U.S. Bankruptcy Court, District of Arizona, Panel ADR Mediator (Compensated and Uncompensated)
    •Arizona Celtic Bar Association
    •Arizona Bankruptcy American Inn of Court (Master 2013-2015, Emeritus)

  • Education & Certifications
    Law School
    Valparaiso University
    Class of 1985
    J.D.
    Other Education
    Marquette University
    Class of 1982
    B.S.
    Accounting
    Legal Certifications
    Certified Specialist in Business Bankruptcy Law by the American Board of Certification

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Attorneys FAQs

  • What year was this attorney first admitted to the bar?
    Séan P. O'Brien was admitted in 1986 to the State of Arizona.
  • Is this attorney admitted to practice in any U.S. Federal Courts?
    Séan P. O'Brien is admitted to practice before the United States Supreme Court.
  • How many attorneys are in this law firm?
    Gust Rosenfeld P.L.C. has 60 attorneys at this location.
  • What law school did this attorney attend?
    Séan P. O'Brien attended Valparaiso University.
  • What year was this attorney's law firm established?
    Gust Rosenfeld P.L.C. was established in 1921.

Attorney information displayed in this FAQ section is based upon information the lawyer has included on their profile, in addition to the information we collect from state bar associations and other organizations that license legal professionals.

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Martindale-Hubbell® Peer Review Ratings™ are the gold standard in attorney ratings, and have been for more than a century. These ratings indicate attorneys who are widely respected by their peers for their ethical standards and legal expertise in a specific area of practice.

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What are the different Martindale-Hubbell Peer Review Ratings?*

• AV Preeminent®: The highest peer rating standard. This rating signifies that a large number of the lawyer’s peers rank him or her at the highest level of professional excellence for their legal knowledge, communication skills and ethical standards.

• Distinguished: An excellent rating for a lawyer with some experience. This rating indicates the attorney is widely respected by their peers for high professional achievement and ethical standards.

• Notable: This rating indicates that the lawyer has been recognized by a large number of their peers for strong ethical standards.

Lawyers who have received peer reviews after 2009 will display more detailed information, including practice areas, summary ratings, detailed numeric ratings and written feedback (if available). Details for individual reviews received before 2009 are not displayed.

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