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William Cullen McMahon, Business Attorney in Dallas, Texas

Over 20 years of legal practice · focused on Business, Car Accidents, and General

Dallas, TX

Practicing business in Dallas since 2006.

20+
Years practicing
2
Bar admissions

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Quick answer

William Cullen McMahon is an attorney based in Dallas, TX. The practice focuses on Business, Car Accidents, and General. William has over 20 years of legal experience.

Based in
Dallas, TX
Experience
over 20 years
Known for
Business · Car Accidents · General
  • Handles Business, Car Accidents, and General matters from Dallas, TX.
  • Over 20 years of practice as a licensed attorney.

About William Cullen McMahon: William Cullen McMahon is an attorney based in Dallas, TX. The practice focuses on Business, Car Accidents, and General. William has over 20 years of legal experience.

Areas of practice

William's practice areas in Dallas

William concentrates on business, car accidents, general, litigation, and pedestrian. Each area below outlines the kind of case William handles, typical outcomes to expect, and how the intake process starts.

Business cases in Dallas, Texas

William takes business matters in Dallas, Texas. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before William agrees to represent you.

Car Accidents cases in Dallas, Texas

William takes car accidents matters in Dallas, Texas. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before William agrees to represent you.

General cases in Dallas, Texas

William takes general matters in Dallas, Texas. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before William agrees to represent you.

Litigation cases in Dallas, Texas

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

Pedestrian cases in Dallas, Texas

William takes pedestrian matters in Dallas, Texas. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before William agrees to represent you.

Biography

William Cullen McMahon, business attorney serving Dallas

William Cullen McMahon is an attorney based in Dallas, TX. The practice focuses on Business, Car Accidents, and General. William has over 20 years of legal experience. William works from Dallas, Texas and takes on business matters across the region.

William Cullen McMahon is a lawyer practicing personal injury, accidents, aids litigation and 11 other areas of law. William received a B.B.A. degree from University of Texas at Austin in 2002, and has been licensed for 20 years. William practices in Dallas, TX.

Working with William on a business matter

William Cullen McMahon is a lawyer practicing personal injury, accidents, aids litigation and 11 other areas of law. William received a B.B.A. degree from University of Texas at Austin in 2002, and has been licensed for 20 years. William practices in Dallas, TX.

Who William represents

William reviews new inquiries case-by-case for business, car accidents, and general matters in Dallas and the surrounding Texas area.

Credentials

Credentials — where William studied and practices

  • Oklahoma City University

    J.D. · 2005

  • University of Texas at Austin

    B.B.A. · 2002

Jurisdictions

William's state bar admissions

  • Texas Oklahoma Easte

    2011 · ACTIVE

  • Oklahoma Texas South

    2006 · ACTIVE

William studied at J.D. in Oklahoma City University and B.B.A. in University of Texas at Austin.

Law school and academic background

William completed J.D. in Oklahoma City University and B.B.A. in University of Texas at Austin. Formal legal training is one signal of substantive knowledge — the day-to-day practice William runs in Texas is where that training gets applied to real client questions.

Locations

William Cullen McMahon's office in Dallas

William's primary office is at 12221 Merit Dr Ste 945, Dallas, TX, 75251-2259. In-person meetings are by appointment; a phone intake usually comes first.

Main office

12221 Merit Dr Ste 945

Dallas, TX 75251-2259

Open in Google Maps

Client feedback

Client reviews of William Cullen McMahon

William has not yet collected verified client reviews on LawyersListed. Reviews here are all from confirmed clients; anonymous ratings are moderated out.

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Hiring guide

How to hire William Cullen McMahon — what to expect in your first consultation

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

Consultation formats and pricing

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

Questions to ask a business attorney in Dallas, Texas

A short list to run through before you commit: How many business 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 William

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

Hourly rates, contingency fees, and flat-fee options

Every business 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. William confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

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

Frequently asked

Frequently asked questions about William Cullen McMahon

  • How much does it cost to hire William for a business case?

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

  • Does William offer a free consultation?

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

  • How long do business cases in Texas typically take?

    Simple business 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. William gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

  • Can William take my case if I'm outside Dallas?

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

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

  • Is William accepting new business clients right now?

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

Areas served

Business attorneys serving Dallas, Houston and Austin in Texas

William handles business matters throughout Texas. Each city below is a direct link into the search page for verified business attorneys in that community.

More counsel

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