JW

J Wayne Mumphrey, Criminal Defense Attorney in Slidell, Louisiana

Over 55 years of legal practice · focused on Criminal Defense, Environmental, and Government · 4.4/5 rating from 1 verified client review

MemberatThe Mumphrey Law Firm, LLC

Slidell, LA

Practicing criminal defense in Slidell since 1971.

55+
Years practicing
4.4 ★
1 client review
3
Bar admissions

Are you J Wayne Mumphrey?

This profile was built from public bar records and is still unclaimed. Claim it free to control your photo, bio, and fees — and get client inquiries sent straight to you.

Claim this profile — free

Quick answer

J Wayne Mumphrey is a member based in Slidell, LA. The practice focuses on Criminal Defense, Environmental, and Government. J has over 55 years of legal experience. Currently practicing at The Mumphrey Law Firm, LLC. Rated 4.4 out of 5 from 1 client review.

Based in
Slidell, LA
Experience
over 55 years
Known for
Criminal Defense · Environmental · Government
  • Handles Criminal Defense, Environmental, and Government matters from Slidell, LA.
  • Over 55 years of practice as a licensed attorney.
  • Recognized with BV Distinguished.

About J Wayne Mumphrey: J Wayne Mumphrey is a member based in Slidell, LA. The practice focuses on Criminal Defense, Environmental, and Government. J has over 55 years of legal experience. Currently practicing at The Mumphrey Law Firm, LLC. Rated 4.4 out of 5 from 1 client review.

Areas of practice

Legal matters J takes on

J concentrates on criminal defense, environmental, government, litigation, and personal injury. Each area below outlines the kind of case J handles, typical outcomes to expect, and how the intake process starts.

Criminal Defense cases in Slidell, Louisiana

J takes criminal defense matters in Slidell, Louisiana. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before J agrees to represent you.

Environmental cases in Slidell, Louisiana

J takes environmental matters in Slidell, Louisiana. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before J agrees to represent you.

Government cases in Slidell, Louisiana

J takes government matters in Slidell, Louisiana. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before J agrees to represent you.

Litigation cases in Slidell, Louisiana

J takes litigation matters in Slidell, Louisiana. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before J agrees to represent you.

Personal Injury cases in Slidell, Louisiana

J takes personal injury matters in Slidell, Louisiana. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before J agrees to represent you.

Biography

Meet J Wayne Mumphrey — criminal defense lawyer in Slidell

J Wayne Mumphrey is a member based in Slidell, LA. The practice focuses on Criminal Defense, Environmental, and Government. J has over 55 years of legal experience. Currently practicing at The Mumphrey Law Firm, LLC. Rated 4.4 out of 5 from 1 client review.

J Wayne Mumphrey is a lawyer practicing general litigation in all state and federal courts, personal injury, criminal defense and 2 other areas of law. J has been licensed for 55 years. J practices at The Mumphrey Law Firm, LLC in Slidell, LA.

J's approach to criminal defense cases

J Wayne Mumphrey is a lawyer practicing general litigation in all state and federal courts, personal injury, criminal defense and 2 other areas of law. J has been licensed for 55 years. J practices at The Mumphrey Law Firm, LLC in Slidell, LA.

The kind of cases J takes

J reviews new inquiries case-by-case for criminal defense, environmental, and government matters in Slidell and the surrounding Louisiana area.

Credentials

Education, bar admissions, and languages

  • Loyola University

    J.D. · 1971

Jurisdictions

J's state bar admissions

  • U.S. Court of Appeal

    1983 · ACTIVE

  • Louisiana

    1971 · ACTIVE

  • U.S. District Court,

    1971 · ACTIVE

J studied at J.D. in Loyola University.

Law school and academic background

J completed J.D. in Loyola University. Formal legal training is one signal of substantive knowledge — the day-to-day practice J runs in Louisiana is where that training gets applied to real client questions.

Recognition

Recognition and thought leadership

J has received 1 formal recognition from bar associations, industry bodies, and peer-review services.

  • BV Distinguished

Legal awards and honors

BV Distinguished.

Affiliations

J's professional memberships and bar associations

  • Louisiana State and American Bar Associations Louisiana Trial Lawyers Association The Association of Trial Lawyers of America

    membership

Locations

J Wayne Mumphrey's office in Slidell

J's primary office is at 330 Oak Harbor Blvd., Ste. D, Slidell, LA, 70458. In-person meetings are by appointment; a phone intake usually comes first.

Main office

The Mumphrey Law Firm, LLC

330 Oak Harbor Blvd., Ste. D

Slidell, LA 70458

Open in Google Maps

Client feedback

Client reviews of J Wayne Mumphrey — 4.4/5 rating from 1 verified client review

Every review below is from a verified client of J. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing criminal defense attorneys in Slidell.

4.4

1 client review

Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once J Wayne Mumphrey claims this profile.

Read all reviews

Hiring guide

How to hire J Wayne Mumphrey — what to expect in your first consultation

Working with a new criminal defense attorney should feel structured. Here's how the first two conversations with J usually go, from the moment you request a consult to the day representation begins.

Consultation formats and pricing

J charges for the initial consult. That fee is credited toward representation if you retain J'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; J will tell you what matters and what doesn't.

Questions to ask a criminal defense attorney in Slidell, Louisiana

A short list to run through before you commit: How many criminal defense 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 J

J discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in criminal defense practice — ask which fits.

Hourly rates, contingency fees, and flat-fee options

Every criminal defense 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. J confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

J's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many criminal defense practices work with clients on structured schedules.

Frequently asked

Frequently asked questions about J Wayne Mumphrey

  • How much does it cost to hire J for a criminal defense case?

    Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. J walks through the likely range during the consult so there are no surprises.

  • Does J offer a free consultation?

    J charges for the initial consult; that fee is credited toward representation if you retain J's office. Some criminal defense attorneys offer free consults — check J's current terms during booking.

  • How long do criminal defense cases in Louisiana typically take?

    Simple criminal defense 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. J gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

  • Can J take my case if I'm outside Slidell?

    J is licensed in Louisiana. Matters governed by Louisiana law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — J 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 J?

    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. J will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.

  • Is J accepting new criminal defense clients right now?

    J's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.

Areas served

Criminal Defense attorneys serving Slidell, New Orleans and Baton Rouge in Louisiana

J handles criminal defense matters throughout Louisiana. Each city below is a direct link into the search page for verified criminal defense attorneys in that community.

More counsel

If J's intake is full or the fit isn't right, these criminal defense attorneys in Slidell handle similar matters. Every profile below is verified and open to consultations.