Atty. Patrick D. Sullivan
About Patrick D. Sullivan 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.
Attorney · Serving Duncan, OK · 75+ Years Experience
Profile Summary
About Patrick D. Sullivan at a Glance
Patrick D. Sullivan is a Retired Partner based in Duncan, Oklahoma, practicing at Leach & Sullivan Limited Liability Partnership. They have 75+ years of legal experience, licensed to practice since 1951. Admitted to practice in Oklahoma (1951) and Texas (2021). Educated at University of Oklahoma (LL.B., 1951) and University of Oklahoma (B.A., 1950). Recognitions include AV Preeminent. Serves clients in Duncan, OK and the surrounding metropolitan area.
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About Patrick D. Sullivan
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. About AwardsClient 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.
At least three reviews and a score of 4.0 or higher.
At least six reviews and a score of 4.2 or higher.
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:
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.
Patrick D. Sullivan got this award in 2021
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.
Awards
Top Contributor: The Top Contributor Award is granted to attorneys who have earned significant contribution points in a given year on our sister site, .com. Contribution points are earned by answering questions in Q&A, publishing Legal Guides, and other useful contributions to the community.
Client’s Choice: The Client's Choice Award Badge is granted to attorneys with a significant number of 4+ star reviews in a given year.
Jurisdictional Context
Why Local Counsel Matters in Duncan
Practicing law in Oklahoma. Legal matters in Oklahoma are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Duncan are typically filed in the local municipal court or the appropriate Oklahoma state district court, depending on subject matter and amount in controversy. An attorney licensed in Oklahoma 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 Oklahoma courts without local counsel or pro hac vice admission.
Duncan Courts and Legal Process
Choosing a Duncan-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 Oklahoma attorneys? Browse all attorneys in Duncan or all attorneys in Oklahoma.
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Professional Profile
Why Clients in Duncan Choose Patrick D. Sullivan
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 Patrick D. Sullivan's practice.
Decade-Tested Legal Experience
Patrick D. Sullivan brings 75+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Multi-State Bar Admission
Licensed in Oklahoma and Texas, Patrick D. Sullivan can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Local Presence in Duncan
A Duncan-based practice means Patrick D. Sullivan attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
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How People Find Patrick D. Sullivan Online
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Education & Law School Background
Awards & Professional Honors
Bar Admissions & Licensed Jurisdictions
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