L. Mark Walker, Litigation Attorney in Oklahoma City, Oklahoma
Over 43 years of legal practice · 5.0/5 rating from 3 verified client reviews
DirectoratCrowe And Dunlevy
Oklahoma City, OK
Practicing litigation in Oklahoma City since 1983.
- 43+
- Years practicing
- 5.0 ★
- 3 client reviews
- 10
- Bar admissions
Practices in
Are you L. Mark Walker?
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Quick answer
L. Mark Walker is a director based in Oklahoma City, OK. The practice focuses on Litigation. L. has over 43 years of legal experience. Currently practicing at Crowe And Dunlevy. Rated 5.0 out of 5 from 3 client reviews.
- Based in
- Oklahoma City, OK
- Experience
- over 43 years
- Known for
- Litigation
- Handles Litigation matters from Oklahoma City, OK.
- Over 43 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About L. Mark Walker: L. Mark Walker is a director based in Oklahoma City, OK. The practice focuses on Litigation. L. has over 43 years of legal experience. Currently practicing at Crowe And Dunlevy. Rated 5.0 out of 5 from 3 client reviews.
Areas of practice
Practice areas handled by L. Mark Walker
L. concentrates on litigation. Each area below outlines the kind of case L. handles, typical outcomes to expect, and how the intake process starts.
Litigation cases in Oklahoma City, Oklahoma
L. takes litigation 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 L. agrees to represent you.
Biography
About L. Mark Walker — Over 43 years of Oklahoma litigation experience
L. Mark Walker is a director based in Oklahoma City, OK. The practice focuses on Litigation. L. has over 43 years of legal experience. Currently practicing at Crowe And Dunlevy. Rated 5.0 out of 5 from 3 client reviews.
L. Mark Walker is a lawyer practicing litigation. L. received a B.B.A. degree from University of Oklahoma in 1980, and has been licensed for 43 years. L. practices at Crowe & Dunlevy in Oklahoma City, OK.
L.'s approach to litigation cases
L. Mark Walker is a lawyer practicing litigation. L. received a B.B.A. degree from University of Oklahoma in 1980, and has been licensed for 43 years. L. practices at Crowe & Dunlevy in Oklahoma City, OK.
Clients L. works with
L. reviews new inquiries case-by-case for litigation matters in Oklahoma City and the surrounding Oklahoma area.
Credentials
L. Mark Walker's legal education and bar admissions
University of Oklahoma College of Law
J.D. · 1983
University of Oklahoma
B.B.A. · 1980
Jurisdictions
L.'s state bar admissions
U.S. Court of Appeal
2007 · ACTIVE
U.S. District Court,
2001 · ACTIVE
U.S. District Court,
1996 · ACTIVE
U.S. District Court,
1996 · ACTIVE
U.S. District Court,
1993 · ACTIVE
U.S. District Court,
1992 · ACTIVE
U.S. Supreme Court
1989 · ACTIVE
U.S. Court of Appeal
1985 · ACTIVE
Oklahoma
1983 · ACTIVE
U.S. District Court,
1983 · ACTIVE
L. studied at J.D. in University of Oklahoma College of Law and B.B.A. in University of Oklahoma.
Law school and academic background
L. completed J.D. in University of Oklahoma College of Law and B.B.A. in University of Oklahoma. Formal legal training is one signal of substantive knowledge — the day-to-day practice L. runs in Oklahoma is where that training gets applied to real client questions.
Recognition
Awards, publications, and recognition of L. Mark Walker
L. has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Affiliations
L.'s professional memberships and bar associations
American College of Environmental Lawyers
bar_fellowship
Locations
L. Mark Walker's office in Oklahoma City
L.'s primary office is at Braniff Building, 324 N. Robinson Ave., Ste. 100, Oklahoma City, OK, 73102. In-person meetings are by appointment; a phone intake usually comes first.
Crowe And Dunlevy
Braniff Building, 324 N. Robinson Ave., Ste. 100
Oklahoma City, OK 73102
Open in Google MapsClient feedback
Client reviews of L. Mark Walker — 5.0/5 rating from 3 verified client reviews
Every review below is from a verified client of L.. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing litigation attorneys in Oklahoma City.
5.0
3 client reviews
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once L. Mark Walker claims this profile.
Read all reviewsHiring guide
How to hire L. Mark Walker — what to expect in your first consultation
Working with a new litigation attorney should feel structured. Here's how the first two conversations with L. usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
L. charges for the initial consult. That fee is credited toward representation if you retain L.'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; L. will tell you what matters and what doesn't.
Questions to ask a litigation attorney in Oklahoma City, Oklahoma
A short list to run through before you commit: How many litigation 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 L.
L. discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in litigation practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every litigation 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. L. confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
L.'s office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many litigation practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about L. Mark Walker
How much does it cost to hire L. for a litigation case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. L. walks through the likely range during the consult so there are no surprises.
Does L. offer a free consultation?
L. charges for the initial consult; that fee is credited toward representation if you retain L.'s office. Some litigation attorneys offer free consults — check L.'s current terms during booking.
How long do litigation cases in Oklahoma typically take?
Simple litigation 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. L. gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can L. take my case if I'm outside Oklahoma City?
L. 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 — L. 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 L.?
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. L. will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is L. accepting new litigation clients right now?
L.'s intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Litigation attorneys serving Oklahoma City, Tulsa and Edmond in Oklahoma
L. handles litigation matters throughout Oklahoma. Each city below is a direct link into the search page for verified litigation attorneys in that community.
More counsel
Other top-rated litigation attorneys in Oklahoma
If L.'s intake is full or the fit isn't right, these litigation attorneys in Oklahoma City handle similar matters. Every profile below is verified and open to consultations.





