Cornelius Leader, Appellate Attorney in Oklahoma City, Oklahoma
Over 51 years of legal practice · focused on Appellate, Civil Rights, and General · 5.0/5 rating from 1 verified client review
Sr. Asst. Atty. Gen.; OK State Atty. Gen. Off.
Oklahoma City, OK
Practicing appellate in Oklahoma City since 1975.
- 51+
- Years practicing
- 5.0 ★
- 1 client review
- 1
- Bar admission
Practices in
Are you Cornelius Leader?
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Quick answer
Cornelius Leader is a sr. asst. atty. gen.; ok state atty. gen. off. based in Oklahoma City, OK. The practice focuses on Appellate, Civil Rights, and General. Cornelius has over 51 years of legal experience. Rated 5.0 out of 5 from 1 client review.
- Based in
- Oklahoma City, OK
- Experience
- over 51 years
- Known for
- Appellate · Civil Rights · General
- Handles Appellate, Civil Rights, and General matters from Oklahoma City, OK.
- Over 51 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About Cornelius Leader: Cornelius Leader is a sr. asst. atty. gen.; ok state atty. gen. off. based in Oklahoma City, OK. The practice focuses on Appellate, Civil Rights, and General. Cornelius has over 51 years of legal experience. Rated 5.0 out of 5 from 1 client review.
Areas of practice
Legal matters Cornelius takes on
Cornelius concentrates on appellate, civil rights, general, and government. Each area below outlines the kind of case Cornelius handles, typical outcomes to expect, and how the intake process starts.
Appellate
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Civil Rights
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General
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Government
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Appellate cases in Oklahoma City, Oklahoma
Cornelius takes appellate matters in Oklahoma City, Oklahoma. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Cornelius agrees to represent you.
Civil Rights cases in Oklahoma City, Oklahoma
Cornelius takes civil rights matters in Oklahoma City, Oklahoma. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Cornelius agrees to represent you.
General cases in Oklahoma City, Oklahoma
Cornelius takes general matters in Oklahoma City, Oklahoma. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Cornelius agrees to represent you.
Government cases in Oklahoma City, Oklahoma
Cornelius takes government matters in Oklahoma City, Oklahoma. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Cornelius agrees to represent you.
Biography
Meet Cornelius Leader — appellate lawyer in Oklahoma City
Cornelius Leader is a sr. asst. atty. gen.; ok state atty. gen. off. based in Oklahoma City, OK. The practice focuses on Appellate, Civil Rights, and General. Cornelius has over 51 years of legal experience. Rated 5.0 out of 5 from 1 client review.
Cornelius Leader is a lawyer practicing constitutional law, administrative law, civil appellate law and 3 other areas of law. Cornelius received a B.S. degree from Oklahoma State University in 1968, and has been licensed for 51 years. Cornelius practices in Oklahoma City, OK.
Cornelius's approach to appellate cases
Cornelius Leader is a lawyer practicing constitutional law, administrative law, civil appellate law and 3 other areas of law. Cornelius received a B.S. degree from Oklahoma State University in 1968, and has been licensed for 51 years. Cornelius practices in Oklahoma City, OK.
Clients Cornelius works with
Cornelius reviews new inquiries case-by-case for appellate, civil rights, and general matters in Oklahoma City and the surrounding Oklahoma area.
Credentials
Education, bar admissions, and languages
University of Oklahoma
J.D. · 1975
Oklahoma State University
B.S. Oklahoma · 1968
Jurisdictions
Cornelius's state bar admissions
Oklahoma
1975 · ACTIVE
Cornelius studied at J.D. in University of Oklahoma and B.S. Oklahoma in Oklahoma State University.
Law school and academic background
Cornelius completed J.D. in University of Oklahoma and B.S. Oklahoma in Oklahoma State University. Formal legal training is one signal of substantive knowledge — the day-to-day practice Cornelius runs in Oklahoma is where that training gets applied to real client questions.
Recognition
Recognition and thought leadership
Cornelius has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Locations
Cornelius Leader's office in Oklahoma City
Cornelius's primary office is at 313 N.E. 21st St.., Oklahoma City, OK, 73105. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Cornelius Leader — 5.0/5 rating from 1 verified client review
Every review below is from a verified client of Cornelius. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing appellate attorneys in Oklahoma City.
5.0
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Cornelius Leader claims this profile.
Read all reviewsHiring guide
How to hire Cornelius Leader — what to expect in your first consultation
Working with a new appellate attorney should feel structured. Here's how the first two conversations with Cornelius usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Cornelius charges for the initial consult. That fee is credited toward representation if you retain Cornelius's office.
What to bring to your first meeting
Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; Cornelius will tell you what matters and what doesn't.
Questions to ask a appellate attorney in Oklahoma City, Oklahoma
A short list to run through before you commit: How many appellate matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?
Fees & payment
Fees, payment methods, and consultation options for Cornelius
Cornelius discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in appellate practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every appellate matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. Cornelius confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Cornelius's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many appellate practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Cornelius Leader
How much does it cost to hire Cornelius for a appellate case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Cornelius walks through the likely range during the consult so there are no surprises.
Does Cornelius offer a free consultation?
Cornelius charges for the initial consult; that fee is credited toward representation if you retain Cornelius's office. Some appellate attorneys offer free consults — check Cornelius's current terms during booking.
How long do appellate cases in Oklahoma typically take?
Simple appellate matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Cornelius gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Cornelius take my case if I'm outside Oklahoma City?
Cornelius is licensed in Oklahoma. Matters governed by Oklahoma law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Cornelius will tell you if the case is a fit or refer you to someone closer to your court.
What should I bring to my first meeting with Cornelius?
Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Cornelius will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Cornelius accepting new appellate clients right now?
Cornelius's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Appellate attorneys serving Oklahoma City, Tulsa and Edmond in Oklahoma
Cornelius handles appellate matters throughout Oklahoma. Each city below is a direct link into the search page for verified appellate attorneys in that community.
More counsel
Other top-rated appellate attorneys in Oklahoma
If Cornelius's intake is full or the fit isn't right, these appellate attorneys in Oklahoma City handle similar matters. Every profile below is verified and open to consultations.





